UPS (Uninterruptible Power Supplies)

Protect servers, network equipment, storage systems, security infrastructure, communications equipment, and other critical electronics with UPS battery backup from Hummingbird Networks. Uninterruptible Power Supply systems provide temporary backup power during electrical outages and can help protect sensitive IT equipment from common power-quality problems.

UPS battery backup is one part of a complete power and cooling strategy for servers, networking, storage, security systems, and other business-critical technology. Hummingbird Networks offers standby, line-interactive, and online double-conversion UPS systems in desktop, tower, rackmount, and rack/tower configurations for offices, network closets, server rooms, edge environments, and data centers.

Available UPS solutions include systems from APC, Eaton, and Eaton Tripp Lite Series across a wide range of power capacities, battery technologies, runtime options, electrical configurations, and management capabilities.

Choosing the right UPS requires more than selecting a VA rating. Organizations should consider actual watt load, required runtime, UPS topology, input and output voltage, electrical connections, battery technology, physical form factor, network management, expansion battery support, and the criticality of the equipment being protected.

UPS Battery Backup for Business & Enterprise IT

A UPS provides temporary battery power when utility electricity is interrupted or moves outside supported operating conditions.

UPS systems are commonly used to protect:

• Servers
• Storage systems
• Network switches
• Routers and gateways
• Firewalls
• Wireless infrastructure
• VoIP and collaboration equipment
• Security cameras and recording systems
• Network management appliances
• Edge computing equipment
• Other business-critical electronics

The appropriate UPS depends on the electrical load, required runtime, power-quality requirements, installation environment, and importance of the connected equipment.

What Is an Uninterruptible Power Supply?

An Uninterruptible Power Supply, commonly called a UPS, is a power protection device that provides temporary battery backup when utility power is interrupted.

Depending on the UPS design, it can also help protect connected equipment against electrical conditions such as:

• Blackouts
• Brownouts
• Voltage sags
• Overvoltage
• Power surges
• Line noise
• Other power-quality disturbances

A UPS can provide enough time to ride through a short outage, maintain critical systems temporarily, wait for generator power, or shut down servers and other equipment safely during a longer interruption.

Why Businesses Use UPS Systems

Servers, switches, firewalls, storage, security equipment, and communications systems can stop operating immediately when electrical power is lost.

A UPS can help organizations:

• Maintain network connectivity through short outages
• Keep important infrastructure operating temporarily
• Allow servers to shut down gracefully
• Reduce the risk of data corruption caused by abrupt power loss
• Maintain communications equipment
• Keep security infrastructure operating during brief interruptions
• Bridge the period before generator power becomes available

A UPS is not intended to replace a generator for long-duration outages, but the two technologies are often used together in business-critical environments.

Types of UPS Systems

UPS systems are commonly divided into three primary topologies: standby, line-interactive, and online double-conversion.

Each architecture provides a different level of power conditioning, battery operation, complexity, and protection.

Standby UPS

A standby UPS normally powers connected equipment directly from utility electricity and transfers the load to battery when incoming power fails or moves outside supported conditions.

Line-Interactive UPS

A line-interactive UPS adds Automatic Voltage Regulation that can correct certain voltage fluctuations without switching to battery operation.

Online Double-Conversion UPS

An online double-conversion UPS continuously converts incoming AC power to DC and then converts it back to AC through the inverter before supplying connected equipment.

The appropriate topology depends on equipment criticality, power quality, required availability, and budget.

Standby UPS Systems

Standby UPS systems provide straightforward battery backup and surge protection for compatible equipment.

They can be appropriate for:

• Small network devices
• Basic office electronics
• Home-office networking
• Selected point-of-sale equipment
• Low-power communications systems

A standby UPS normally transfers to battery only when utility power is unavailable or falls outside the UPS operating range.

More critical infrastructure or locations with frequent voltage fluctuations may benefit from line-interactive or online double-conversion technology.

Line-Interactive UPS Systems

Line-interactive UPS systems are widely used for business networking and IT infrastructure because they combine battery backup with voltage regulation.

Automatic Voltage Regulation, commonly called AVR, can correct certain undervoltage and overvoltage conditions without consuming battery capacity.

Line-interactive UPS systems can be appropriate for:

• Network switches
• Routers
• Firewalls
• Servers
• Network closets
• VoIP systems
• Security equipment
• Small server rooms
• Edge infrastructure

Online Double-Conversion UPS Systems

Online double-conversion UPS systems provide continuously conditioned output power for equipment requiring a higher level of electrical protection.

Connected equipment is supplied through the inverter during normal operation, helping isolate the protected load from a broad range of incoming power problems.

Online UPS systems can be appropriate for:

• Enterprise servers
• Virtualization infrastructure
• Storage systems
• Data center networking
• Mission-critical applications
• Healthcare IT
• Edge computing
• Industrial environments
• High-availability infrastructure

Standby vs. Line-Interactive vs. Online UPS

The three major UPS topologies provide different levels of protection.

Standby UPS: Provides basic battery backup and surge protection for less demanding applications.

Line-interactive UPS: Adds Automatic Voltage Regulation and is widely used for networking, servers, and business IT.

Online double-conversion UPS: Continuously conditions output power and is often selected for critical enterprise infrastructure.

Equipment importance, local power quality, runtime, management requirements, and budget should guide the decision.

Rackmount UPS Systems

Rackmount UPS systems install within standard IT racks alongside servers, network switches, storage systems, firewalls, and other infrastructure.

Rack UPS systems are available in form factors such as:

• 1U
• 2U
• 3U
• 4U
• 6U
• Larger enterprise configurations

When selecting a rackmount UPS, consider rack depth, available rack units, UPS weight, rail requirements, electrical connections, airflow, service access, and external battery requirements.

1U Rackmount UPS Systems

1U UPS systems occupy one rack unit and can be useful where rack space is limited.

Compact systems are commonly used for network closets, edge infrastructure, smaller servers, switches, security appliances, and communications equipment.

Hummingbird Networks carries compact line-interactive rackmount UPS systems from APC and Eaton Tripp Lite Series in 1U configurations.

2U Rackmount UPS Systems

2U UPS systems are common in server rooms, network racks, and data centers because the additional chassis space can accommodate greater power and battery capacity.

Both line-interactive and online double-conversion UPS systems are available in 2U designs.

Tower UPS Systems

Tower UPS systems are designed for standalone installation rather than direct rack mounting.

Tower configurations can be appropriate for:

• Branch offices
• Small server rooms
• Standalone servers
• Security infrastructure
• Communications equipment
• Office technology

Rack/Tower UPS Systems

Rack/tower UPS systems provide flexible installation by supporting horizontal rack mounting or vertical tower placement.

This flexibility can be useful when organizations expect equipment locations or rack configurations to change over time.

Verify whether required rails, tower stands, and mounting components are included with the specific UPS.

Short-Depth UPS Systems

Short-depth UPS systems are designed for network cabinets and installations where a full-depth server UPS may not fit.

They can be particularly useful in:

• Network closets
• Wall-mounted racks
• Retail locations
• Branch offices
• Edge computing environments

Always compare UPS depth with usable rack depth before ordering.

UPS VA Ratings

UPS power capacity is commonly expressed in volt-amperes, abbreviated VA.

Common UPS capacities include:

• 350VA
• 500VA
• 750VA
• 1000VA
• 1500VA
• 2200VA
• 3000VA
• 5000VA
• 6000VA
• 10000VA
• Higher-capacity systems

VA alone does not determine whether a UPS can support a particular load.

UPS VA vs. Watts

VA and watts describe different aspects of UPS capacity.

VA represents apparent power.

Watts represent the real power consumed by connected equipment.

A UPS has limits for both VA and watts. Connected equipment must remain within both ratings.

For example, a UPS rated at 1500VA does not necessarily support a 1500-watt load.

UPS sizing should therefore be based on actual equipment power consumption as well as VA capacity.

How to Size a UPS

UPS sizing begins with the equipment that requires battery backup.

A basic sizing process includes:

• Identify every device that requires protected power
• Determine the expected watt draw of each device
• Add the protected loads together
• Check required VA capacity
• Add reasonable capacity for load variation and growth
• Determine the required runtime
• Verify voltage, plug, and receptacle requirements

A UPS should have enough capacity to support the expected load without operating continuously at its maximum rating.

UPS Runtime

UPS runtime describes how long battery power can support connected equipment during an outage.

Runtime depends heavily on the electrical load.

The same UPS can provide considerably more runtime at a light load than it provides near maximum capacity.

Organizations should determine whether they need enough runtime to:

• Ride through brief outages
• Wait for generator startup
• Maintain communications temporarily
• Shut servers down safely
• Support essential infrastructure for a defined period

How Much UPS Runtime Do I Need?

The appropriate runtime depends on what the protected equipment does and what should happen during a prolonged outage.

A network closet may only need enough battery power to maintain connectivity during brief interruptions.

A server environment may require enough runtime to complete an orderly shutdown.

A facility with a generator may require the UPS to support equipment until generator output is stable.

When substantially longer runtime is required, compatible external battery packs may be available for selected UPS families.

UPS Expansion Battery Packs

Selected UPS systems support external battery packs that can increase battery runtime without increasing the UPS maximum power rating.

Expansion batteries can be useful for:

• Extended server runtime
• Network availability
• Longer shutdown windows
• Generator startup periods
• Remote edge locations

External battery packs are highly model-specific. Verify battery voltage, connector, chemistry, UPS family, and manufacturer compatibility.

For extended-runtime products, explore UPS Expansion Battery Packs.

UPS Replacement Batteries

UPS batteries gradually lose capacity as they age and eventually require replacement.

Battery life can be affected by:

• Temperature
• Battery chemistry
• Discharge frequency
• Depth of discharge
• Charging conditions
• UPS operating environment

Replacement batteries should be matched to the exact UPS model and supported manufacturer battery cartridge.

For battery maintenance products, explore UPS Replacement Batteries.

Lead-Acid UPS Batteries

Valve-Regulated Lead-Acid batteries, commonly called VRLA batteries, remain widely used in business and enterprise UPS systems.

Lead-acid technology provides established battery backup for a wide range of power capacities and applications.

Battery health should be monitored because available runtime decreases as batteries age.

Lithium-Ion UPS Systems

Lithium-ion UPS systems use lithium-ion battery technology instead of traditional lead-acid batteries.

Depending on the UPS, potential benefits can include:

• Longer battery service life
• Lower equipment weight
• Reduced battery maintenance
• Smaller battery footprint
• Faster recharge characteristics

Hummingbird Networks carries lithium-ion UPS options from APC and Eaton for compatible business and enterprise applications.

Lead-Acid vs. Lithium-Ion UPS

Lead-acid and lithium-ion UPS systems offer different lifecycle, weight, maintenance, and cost characteristics.

Lead-acid batteries provide established technology with broad availability.

Lithium-ion systems can offer longer battery service life and lower weight on compatible models, although initial equipment cost can be higher.

Organizations should evaluate total lifecycle requirements rather than purchase price alone.

Automatic Voltage Regulation

Automatic Voltage Regulation, commonly abbreviated AVR, allows compatible UPS systems to correct certain input-voltage fluctuations without switching to battery.

AVR can help compensate for:

• Low voltage
• Brownouts
• High voltage
• Certain utility fluctuations

Because the battery is not consumed for every minor voltage condition, AVR can help preserve battery capacity for actual outages.

Pure Sine Wave UPS Systems

Pure sine wave UPS output closely reproduces the AC waveform expected by modern electronic equipment.

Pure sine wave output can be particularly relevant for:

• Servers
• Network equipment
• Storage systems
• Equipment using active power factor correction power supplies
• Sensitive business electronics

Online double-conversion UPS systems typically provide sine wave output, while many business-class line-interactive systems also provide pure sine wave battery output.

UPS Input & Output Voltage

UPS systems are available for different electrical environments.

Common operating voltages can include:

• 100V
• 110V
• 120V
• 127V
• 208V
• 220V
• 230V
• 240V

The UPS input must be compatible with the electrical service at the installation location, and its output must support the connected equipment.

120V UPS Systems

120V UPS systems are common in North American offices, network closets, branch locations, and smaller server environments.

Depending on capacity, these systems can use common NEMA plugs and receptacles found in business IT environments.

208V UPS Systems

208V UPS systems are commonly used in larger server rooms, data centers, and higher-capacity rack environments.

Higher-voltage electrical distribution can support greater infrastructure loads.

The UPS, electrical circuit, PDU, plugs, receptacles, and connected equipment must all be compatible with the intended voltage.

UPS Plug & Receptacle Types

UPS systems can use different input plugs and output receptacles depending on voltage and capacity.

Common North American configurations can include:

• NEMA 5-15P
• NEMA 5-15R
• NEMA 5-20P
• NEMA 5-20R
• NEMA L5-30P
• NEMA L5-30R
• NEMA L6-20R
• NEMA L6-30R
• Hardwired connections on selected systems

Electrical compatibility should always be verified before installation.

UPS Systems for Servers

Servers can host applications, databases, virtual machines, files, authentication services, and other critical workloads.

A UPS can provide enough time for servers to continue operating through short outages or complete a controlled shutdown during longer interruptions.

When protecting servers, consider:

• Total server wattage
• Connected storage
• Network infrastructure required during shutdown
• Virtualization hosts
• Required runtime
• Shutdown software
• Redundant server power supplies
• Power-path redundancy

UPS Systems for Server Racks

Server racks can contain servers, storage, switches, management appliances, and other equipment that must be considered together when calculating protected load.

A rack UPS should be selected according to:

• Total equipment wattage
• VA requirements
• Available rack units
• Rack depth
• Voltage
• Required runtime
• Power distribution design
• Management requirements

UPS Systems for Network Switches

Network switches provide connectivity to users, servers, wireless access points, phones, cameras, and other devices.

A loss of switch power can disconnect many systems at once.

UPS protection for network switches should account for the switch itself and any Power over Ethernet load being supplied through the switch.

UPS Systems for PoE Switches

PoE switches can represent substantial electrical loads because they power both their own electronics and connected devices.

Connected PoE devices can include:

• Wireless access points
• VoIP phones
• Security cameras
• Sensors
• Other network-powered equipment

When sizing a UPS for a PoE switch, calculate the expected total load rather than using only the switch's base power consumption.

UPS Systems for Routers & Firewalls

Routers, gateways, and firewalls can be essential to maintaining internet access, WAN connectivity, VPN services, and network security.

Providing UPS power to these devices can help maintain network services through short power interruptions and preserve communications while other systems shut down.

UPS Systems for Storage

Enterprise storage systems can contain critical business data and can be sensitive to abrupt power loss.

A UPS can provide time for compatible storage systems and connected servers to complete controlled shutdown procedures.

UPS sizing should include storage power consumption plus the servers, network infrastructure, and management systems required during shutdown.

UPS Systems for Security Infrastructure

Security systems can depend on cameras, PoE switches, network video recorders, storage, access-control equipment, and network infrastructure.

A UPS can help maintain portions of the security environment during short outages.

When sizing UPS protection for surveillance infrastructure, consider:

• PoE switch power
• Camera PoE load
• Network video recorder power
• Storage
• Routers and switches
• Desired runtime

UPS Systems for VoIP & Collaboration

Business communications can depend on network switches, routers, internet access, call-control services, and PoE phones.

Protecting the communications endpoint alone may not preserve service if the supporting network infrastructure loses power.

A complete communications UPS strategy should therefore account for the entire required network path.

UPS Systems for Network Closets

Network closets commonly contain switches, routers, firewalls, wireless infrastructure, patching, and other equipment supporting an entire building area.

Line-interactive rackmount UPS systems are frequently used in these environments because they combine battery backup, voltage regulation, and rack integration.

Network-closet UPS selection should consider:

• Total equipment load
• PoE requirements
• Available rack space
• Required runtime
• Remote monitoring
• Available electrical circuits
• Future equipment growth

UPS Systems for Server Rooms

Server rooms can contain computing, storage, networking, security, and communications infrastructure.

UPS architecture should be based on which loads are critical and what should happen during an extended power outage.

Important considerations include:

• Total protected load
• UPS topology
• Runtime
• Redundancy
• Network monitoring
• Graceful shutdown
• Battery expansion
• Generator integration

UPS Systems for Data Centers

Data centers can require larger and more redundant UPS architectures because they support high-density computing and business-critical infrastructure.

Data center UPS planning can include:

• Total IT load
• Power redundancy
• Runtime requirements
• Generator startup
• 208V or higher-voltage infrastructure
• Network monitoring
• Battery lifecycle
• Maintenance requirements
• Future capacity

UPS Systems for Edge Computing

Edge computing places servers and network infrastructure closer to users, devices, and operational systems.

These environments can include:

• Branch offices
• Retail stores
• Healthcare locations
• Warehouses
• Manufacturing facilities
• Remote sites

A remotely managed UPS can be particularly useful where IT personnel are not physically present.

Network-Managed UPS Systems

Network management allows authorized administrators to monitor compatible UPS systems over an IP network.

Depending on the UPS and management hardware, capabilities can include:

• UPS status monitoring
• Load monitoring
• Battery condition
• Estimated runtime
• Power-event alerts
• Remote administration
• Environmental monitoring integration
• Graceful server shutdown

UPS Network Management Cards

Some UPS systems include network connectivity while others support optional network management cards.

Compatible management hardware can provide features such as:

• Web-based administration
• SNMP monitoring
• Remote event alerts
• Centralized management
• Automated shutdown integration

Network-management cards are typically model-specific.

Remote UPS Monitoring

Remote UPS monitoring can help administrators identify battery deterioration, overload conditions, and utility-power events without visiting the equipment location.

Available monitoring can include:

• Input power
• Output power
• UPS load
• Battery charge
• Battery health
• Estimated runtime
• Active alarms
• Power-event history

Graceful Server Shutdown

During a prolonged outage, compatible UPS management software can initiate an orderly shutdown before battery runtime is exhausted.

This can help reduce the risk associated with servers and applications losing power unexpectedly.

Shutdown capabilities depend on the UPS manufacturer, management software, operating system, virtualization environment, and deployment configuration.

UPS Systems for Virtualization

Virtualization can concentrate many applications onto a relatively small number of physical hosts, increasing the impact of an unexpected power failure.

UPS planning for virtualization should consider:

• Hypervisor hosts
• Shared storage
• Network switches
• Management infrastructure
• Virtual machine shutdown
• Cluster shutdown order
• Required runtime

APC UPS Systems

APC offers UPS systems for business, network, server, edge, and data center environments.

Hummingbird Networks carries APC Smart-UPS and Smart-UPS On-Line systems across multiple capacities, battery technologies, and form factors.

Available APC UPS configurations can include:

• Line-interactive UPS systems
• Online double-conversion UPS systems
• Rackmount UPS systems
• Tower UPS systems
• Rack/tower UPS systems
• Lead-acid systems
• Lithium-ion UPS systems
• Short-depth UPS models
• Extended-runtime configurations
• Network-managed UPS systems

APC Smart-UPS

APC Smart-UPS systems are widely used to protect servers, storage, networking, and business IT infrastructure.

Depending on the model, Smart-UPS capabilities can include:

• Line-interactive operation
• Automatic Voltage Regulation
• Sine wave output
• Rack or tower installation
• SmartSlot expansion
• Network management
• LCD status displays
• Extended runtime support
• Lithium-ion battery options

APC Smart-UPS On-Line

APC Smart-UPS On-Line systems use double-conversion architecture for critical IT infrastructure requiring continuously conditioned power.

Available systems span different power capacities for server rooms, enterprise racks, and larger infrastructure environments.

Selected models support network management, external battery packs, automated shutdown, and centralized administration.

Eaton UPS Systems

Eaton provides UPS platforms for business IT, edge computing, server rooms, data centers, healthcare, industrial applications, and other critical environments.

Eaton UPS options can include:

• Line-interactive systems
• Online double-conversion systems
• Rack/tower configurations
• Network-managed UPS systems
• Lead-acid battery models
• Lithium-ion UPS systems
• Extended-runtime configurations

Eaton 9PX UPS

Eaton 9PX UPS systems provide online double-conversion power protection for critical IT infrastructure.

Depending on the model, Eaton 9PX capabilities can include:

• Online double-conversion topology
• Pure sine wave output
• Rack/tower installation
• Network management
• Extended battery runtime
• Lead-acid or lithium-ion batteries
• High-capacity enterprise configurations

Eaton Tripp Lite Series UPS Systems

Eaton Tripp Lite Series UPS systems provide battery backup and power protection across networking, communications, security, server, and general business IT applications.

Available systems can include:

• Standby UPS
• Line-interactive UPS
• Online UPS
• Rackmount systems
• Tower systems
• Rack/tower systems
• Compact network UPS systems

Eaton Tripp Lite SmartPro UPS

Eaton Tripp Lite Series SmartPro systems commonly use line-interactive technology with Automatic Voltage Regulation for business IT applications.

Depending on the model, SmartPro UPS systems can provide:

• Sine wave output
• Automatic Voltage Regulation
• Rackmount or rack/tower installation
• LCD status information
• USB connectivity
• Optional network management

UPS vs. Surge Protector

A surge protector can help protect compatible electronics against certain transient voltage spikes but does not provide battery backup during an outage.

A UPS provides temporary battery power and can include additional power-protection capabilities depending on the topology.

If equipment must remain operating temporarily or shut down safely during a blackout, a UPS provides functionality that a basic surge protector cannot.

UPS vs. Generator

A UPS and generator perform different roles in a power-continuity strategy.

A UPS provides nearly immediate battery-backed power when utility electricity fails.

A generator can provide longer-duration alternate power after it starts and stabilizes.

Critical environments often use UPS systems to bridge the period between utility failure and generator operation.

UPS vs. PDU

A UPS provides battery backup and power protection.

A Power Distribution Unit distributes available electrical power to multiple connected devices.

UPS systems and PDUs are frequently used together in rack environments, but they perform different functions.

UPS Redundancy

Highly available infrastructure can require redundant power paths rather than dependence on a single UPS.

Redundant architectures can involve:

• Multiple UPS systems
• Dual equipment power supplies
• Separate electrical circuits
• Separate rack power paths
• Transfer technologies
• Generator backup

The appropriate redundancy design depends on application criticality and acceptable downtime.

UPS Efficiency

UPS systems consume a portion of electrical power while converting, conditioning, charging, and distributing electricity.

UPS efficiency can influence:

• Operating cost
• Heat generation
• Cooling requirements
• Battery runtime
• Overall power consumption

Efficiency can vary by UPS topology, load percentage, model, and operating mode.

UPS Heat & Environmental Requirements

UPS electronics and batteries generate heat during normal operation and charging.

Higher-capacity systems can contribute meaningfully to the thermal load in network closets, server rooms, and data centers.

UPS equipment should be installed according to manufacturer temperature, ventilation, clearance, and airflow requirements.

UPS Battery Temperature

Temperature can have a significant effect on battery service life.

Excessive heat can accelerate battery aging and reduce available runtime over time.

UPS installations should therefore be considered as part of the broader room and rack cooling strategy.

UPS Battery Maintenance

UPS batteries should be treated as maintenance components.

Organizations should monitor:

• Battery age
• Battery-health alerts
• Runtime changes
• Self-test results
• Environmental temperature
• Manufacturer replacement recommendations

Waiting until a battery can no longer support the connected load can result in unexpected loss of backup power.

How Often Should UPS Batteries Be Replaced?

Battery replacement intervals vary according to battery chemistry, temperature, discharge frequency, charging conditions, and UPS design.

Traditional lead-acid batteries commonly require replacement during the useful life of the UPS.

Lithium-ion UPS systems can provide longer battery service life on compatible models.

Battery health and manufacturer guidance should determine replacement timing rather than age alone.

UPS Load Percentage

UPS load percentage shows how much of the UPS available output capacity is currently being used.

A UPS operating at a lower load generally provides greater battery runtime than the same system operating near maximum capacity.

Maintaining reasonable capacity headroom can also help support future equipment growth.

Planning UPS Capacity for Growth

Organizations should avoid sizing a UPS only for the exact equipment load installed today when infrastructure expansion is expected.

Future load can increase through:

• Additional servers
• Additional switches
• Higher PoE consumption
• Storage expansion
• Additional security equipment
• New communications infrastructure

Appropriate capacity headroom depends on expected growth and manufacturer guidance.

How to Choose a UPS

Start with the equipment that requires protection and determine the electrical and operational requirements of that equipment.

Calculate the Protected Load

Add the expected watt consumption of all equipment receiving battery backup.

Check VA & Watt Capacity

Make sure the UPS can support both the total wattage and required VA load.

Choose the UPS Topology

Select standby, line-interactive, or online double-conversion based on equipment criticality and power-quality requirements.

Determine Required Runtime

Decide whether the UPS needs to bridge brief interruptions, support generator startup, maintain critical equipment temporarily, or provide time for graceful shutdown.

Check Input Voltage

Match the UPS to the electrical service available at the installation location.

Check Plugs & Receptacles

Verify electrical connection compatibility with the circuit and protected equipment.

Choose Rack or Tower Installation

Determine whether the UPS should install within a rack or operate as a standalone tower.

Consider Battery Technology

Evaluate lead-acid and lithium-ion options according to lifecycle, weight, maintenance, cost, and operational requirements.

Consider Network Management

Critical and remote environments can benefit from network-based UPS monitoring and alerts.

Consider Extended Runtime

If longer runtime is required, determine whether the selected UPS supports compatible external battery packs.

Plan for Battery Replacement

Confirm replacement battery availability and lifecycle requirements before deployment.

UPS as Part of a Complete Power & Cooling Strategy

UPS battery backup is one part of the broader infrastructure required to power and protect business technology.

Depending on the environment, organizations may also need power distribution, surge protection, replacement and expansion batteries, transfer technologies, transformers, cooling, monitoring, and physical rack infrastructure.

Rather than treating each power component independently, organizations should evaluate electrical load, runtime, redundancy, power distribution, environmental conditions, and future growth together.

Explore Power & Cooling for the broader infrastructure used to support servers, networking, storage, security systems, communications equipment, and enterprise IT.

Why Buy UPS Systems from Hummingbird Networks?

Selecting a UPS involves matching power capacity, runtime, topology, voltage, electrical connections, management, battery technology, and installation requirements to the infrastructure being protected.

Hummingbird Networks offers UPS systems for offices, network closets, branch environments, server rooms, edge infrastructure, security systems, and enterprise data centers.

Customers can turn to our team for:

• Business UPS systems
• Enterprise UPS systems
• Rackmount UPS systems
• Tower UPS systems
• Rack/tower UPS systems
• Line-interactive UPS systems
• Online double-conversion UPS systems
• Lead-acid UPS systems
• Lithium-ion UPS systems
• APC UPS solutions
• Eaton UPS solutions
• Eaton Tripp Lite Series UPS solutions
• Extended-runtime configurations
• Network-managed UPS systems
• Product and compatibility guidance

Whether you need battery backup for a single network closet, a rack of servers, security infrastructure, communications equipment, or a larger data center environment, Hummingbird Networks can help identify UPS solutions based on load, runtime, topology, voltage, management, and deployment requirements.

Frequently Asked Questions About UPS Systems

What does UPS stand for?

UPS stands for Uninterruptible Power Supply. A UPS provides temporary battery backup and power protection for connected electronic equipment.

What does a UPS do?

A UPS supplies temporary battery power when utility electricity is interrupted and can provide additional protection against power-quality problems depending on the UPS topology.

What are the three main types of UPS?

The three common UPS topologies are standby, line-interactive, and online double-conversion.

What is a standby UPS?

A standby UPS normally powers equipment from utility electricity and transfers to battery when incoming power fails or moves outside supported conditions.

What is a line-interactive UPS?

A line-interactive UPS combines battery backup with Automatic Voltage Regulation that can correct certain voltage fluctuations without using the battery.

What is an online double-conversion UPS?

An online double-conversion UPS continuously converts incoming AC power to DC and back to AC through an inverter, providing continuously conditioned output power.

Which type of UPS is appropriate for servers?

Server environments commonly use line-interactive or online double-conversion UPS systems. The appropriate topology depends on workload criticality, power quality, runtime, availability requirements, and budget.

What does VA mean on a UPS?

VA stands for volt-amperes and represents apparent power capacity.

What is the difference between VA and watts?

VA represents apparent power while watts represent real electrical power consumed by equipment. A UPS has limits for both ratings.

How do I size a UPS?

Add the expected watt requirements of the protected equipment, verify VA requirements, add appropriate capacity for growth, and then determine runtime, voltage, topology, outlets, and physical installation requirements.

How long will a UPS run during an outage?

Runtime depends on battery capacity and connected load. A UPS generally provides more runtime at lower load and less runtime as the protected load increases.

Does a larger VA rating always mean longer runtime?

No. VA describes maximum power capacity, while runtime is also determined by battery capacity and connected load.

Can I increase UPS runtime?

Selected UPS systems support compatible external battery packs that can increase runtime. Expansion batteries must match the UPS model or supported product family.

What is AVR on a UPS?

AVR stands for Automatic Voltage Regulation. It allows a compatible UPS to correct certain low or high voltage conditions without immediately using battery power.

What is a pure sine wave UPS?

A pure sine wave UPS produces an AC waveform designed to closely resemble utility power and is appropriate for many modern servers, networking devices, storage systems, and sensitive electronics.

Do servers need a UPS?

Business-critical servers are commonly protected by UPS systems so they can remain online through short outages or complete a controlled shutdown during longer interruptions.

Should network switches be connected to a UPS?

Critical network switches are commonly connected to UPS systems because losing switch power can disconnect many users and network devices simultaneously.

How do I size a UPS for a PoE switch?

Include both the switch's own electrical consumption and the expected power delivered to connected PoE devices.

Can one UPS protect multiple devices?

Yes. One UPS can support multiple compatible devices as long as their combined VA and watt load remain within the UPS limits and the required electrical connections are available.

What is the difference between a UPS and surge protector?

A surge protector can help protect against certain voltage spikes but does not provide battery power. A UPS provides temporary battery backup and can provide additional power protection depending on the system.

What is the difference between a UPS and generator?

A UPS provides nearly immediate battery power for a limited period, while a generator can provide longer-duration backup power after it starts. Critical facilities often use both.

What is the difference between a UPS and PDU?

A UPS provides battery backup and power protection. A PDU distributes electrical power to multiple connected devices.

Can a PDU be connected to a UPS?

Compatible UPS and PDU combinations are commonly used in rack environments. Electrical ratings, connectors, UPS output capacity, PDU capacity, and total equipment load must all be appropriate for the configuration.

What is a network-managed UPS?

A network-managed UPS can be monitored and administered over an IP network through integrated connectivity or a compatible management card.

Can a UPS automatically shut down a server?

Compatible UPS management software can initiate graceful shutdown of supported servers and virtualization environments when battery runtime reaches configured thresholds.

What is a lithium-ion UPS?

A lithium-ion UPS uses lithium-ion battery technology for backup power. Depending on the model, lithium-ion systems can provide longer battery service life and lower weight than traditional lead-acid designs.

How long do UPS batteries last?

Battery service life depends on chemistry, temperature, charging conditions, discharge history, and UPS design. Battery health should be monitored and replacement performed according to manufacturer guidance.

Can UPS batteries be replaced?

Many UPS systems support replaceable batteries or battery cartridges. The replacement battery must match the exact UPS model and supported manufacturer specification.

What happens when a UPS battery gets old?

An aging UPS battery generally provides less runtime and can eventually become unable to support the connected load during an outage.

What size UPS do I need for a network closet?

Add the expected watt consumption of switches, routers, firewalls, PoE devices, controllers, and other protected equipment. Then determine the required runtime, UPS topology, voltage, rack space, and management requirements.

What size UPS do I need for a server rack?

Calculate the expected watt load of the protected servers, storage, switches, and other rack equipment. Then select sufficient VA and watt capacity, runtime, voltage, electrical connections, rack space, and capacity for future growth.

Does Hummingbird Networks carry APC UPS systems?

Yes. Hummingbird Networks carries APC UPS products including Smart-UPS and Smart-UPS On-Line systems for compatible business and enterprise environments.

Does Hummingbird Networks carry Eaton UPS systems?

Yes. Hummingbird Networks carries Eaton UPS systems including enterprise line-interactive, online double-conversion, and lithium-ion power protection options.

Does Hummingbird Networks carry Eaton Tripp Lite Series UPS systems?

Yes. Hummingbird Networks offers Eaton Tripp Lite Series UPS products for networking, servers, security, communications, and business IT applications.

Can Hummingbird Networks help me choose a UPS?

Yes. Providing the equipment being protected, expected watt load, desired runtime, voltage, electrical connections, rack or tower preference, and management requirements can help identify appropriate UPS options.

Shop UPS Uninterruptible Power Supplies

Protect servers, network switches, storage, routers, firewalls, security systems, communications infrastructure, and other critical business technology with UPS battery backup.

From compact standby and line-interactive systems to rack-mounted online double-conversion UPS solutions from APC, Eaton, and Eaton Tripp Lite Series, Hummingbird Networks can help organizations select power protection based on equipment load, runtime, topology, electrical requirements, battery technology, management, and deployment environment.