WattBox WB-UPS-OL-1000-8 Online Double Conversion UPS 1000VA 8 Outlets

Zero-Transfer Backup Power for Critical Rack Equipment

The WattBox WB-UPS-OL-1000-8 is a 1000VA / 1000W online double conversion UPS designed for AV racks, network closets, security systems, structured wiring areas, control systems, and other sensitive electronics that need continuous conditioned power.

It includes 8 built-in outlets, allowing routers, switches, NVRs, control processors, streamers, computers, and other suitable rack devices to connect directly to the UPS. Four critical-load outlets help prioritize the equipment that matters most during longer outages.

Best Use Cases

• Network closets: Helps keep routers, switches, modems, firewalls, and core network equipment stable during outages and voltage disturbances.
• Security camera systems: A strong fit for NVRs, DVRs, network switches, routers, and surveillance support equipment.
• AV racks: Useful for processors, streamers, control devices, media equipment, and other sensitive rack components.
• Smart home systems: Helps protect controllers, hubs, bridges, automation processors, and connected network equipment.
• Small business systems: Good for offices, studios, retail locations, conference rooms, and equipment areas where short outages can interrupt operations.
• Expandable-runtime installations: Supports compatible external battery packs when the internal runtime is not enough.

Who Should Buy This?

This UPS is a good choice if you need to connect several rack devices directly to one online double conversion UPS and cannot risk a transfer delay when utility power fails.

It makes particular sense for customers who need 8 built-in outlets, pure sinewave output, a front LCD, computer-based configuration, graceful shutdown, critical-load prioritization, and the ability to expand runtime later.

Who Should Not Buy This?

This is probably more UPS than you need if you are only protecting one modem, one router, or another very small load. A compact line-interactive UPS may be more economical for basic equipment.

This is also not the correct model if you specifically need native OvrC monitoring, OvrC load shedding, or remote outlet management. For an OvrC-compatible installation, consider the WB-OVRC-OLUPS series paired with a compatible WattBox IP power conditioner.

If your planned load is close to 1000W, or you expect significant future expansion, consider a 1500VA or 2000VA model rather than running this unit near full capacity.

Do not connect heaters, appliances, laser printers, power tools, or other unsuitable high-draw equipment to this UPS.

Compatibility and Technical Notes

• UPS topology: Online double conversion for continuous inverter-supplied power.
• Capacity: 1000VA / 1000W maximum output.
• Outlet count: Includes 8 built-in outlets for connected equipment.
• Critical-load outlets: Four outlets are designed to prioritize critical equipment and preserve additional runtime.
• Transfer time: Zero transfer time from AC operation to battery operation.
• Output waveform: Pure sinewave output in battery mode.
• Output voltage: Supports selectable output voltage settings including 100V, 110V, 115V, 120V, 125V, and 127V AC.
• LCD monitoring: Displays load, estimated runtime, battery status, input and output voltage, frequency, current, alarms, warnings, and fault information.
• Local management: Includes PC software, USB, and RS-232 connectivity for configuration and monitoring.
• Network management: Optional SNMP support is available for compatible network-management installations.
• Graceful shutdown: USB communication can instruct a compatible computer to save files and shut down properly during an extended outage.
• Rack size: 2U rack-mount design.
• Dimensions: Approximately 17.24 inches wide, 3.46 inches high, and 16.14 inches deep.
• Weight: Approximately 25.57 lb with the internal batteries installed.
• Internal batteries: Uses two 12V / 9Ah sealed lead-acid batteries.
• Recharge time: Approximately 3 hours to recover to 95% internal-battery capacity under the specified charging conditions.
• Runtime expansion: Supports up to five compatible WB-UPS-EBP-18AH24V extended battery packs.
• OvrC: This model does not provide the native OvrC pairing features of the WB-OVRC-OLUPS series.

Installation Considerations

Before ordering, calculate the total wattage of every device that will connect to the UPS. Leave reasonable capacity headroom for future equipment, startup behavior, and better runtime performance.

Decide which devices belong on the four critical-load outlets. Core equipment such as the modem, router, main network switch, NVR, firewall, or control processor will usually be more important than secondary streamers, displays, or nonessential accessories.

Confirm that the rack has 2U of available space, enough depth for the chassis and rear cables, adequate ventilation, and enough structural support for the UPS and any future extended battery packs.

Runtime Expectations

Runtime depends on the connected load. The official internal-battery runtime chart estimates approximately:

• 100% load: 2 minutes and 25 seconds
• 50% load: 9 minutes and 26 seconds
• 30% load: 18 minutes and 31 seconds
• 10% load: 63 minutes and 40 seconds

These figures are planning estimates rather than guaranteed runtime. Battery condition, temperature, connected equipment, configuration, and battery age can affect actual results.

Why Online Double Conversion Matters

A standard standby or line-interactive UPS may require a brief transition when utility power fails. Many devices tolerate that transition, but sensitive network, security, AV, and control systems may still reboot, disconnect, or lock up.

An online double conversion UPS continuously powers connected equipment through its inverter. This provides zero transfer time and helps isolate the connected load from fluctuations in the incoming electrical supply.

Why the Critical-Load Outlets Matter

Not every device in a rack has the same priority during an outage. A router, firewall, switch, NVR, or control processor may need to remain online longer than a streamer or secondary accessory.

The four critical-load outlets help organize the installation around those priorities, preserving more battery time for the devices that matter most when the outage continues.

Why Extended Battery Support Matters

The internal batteries are mainly intended to cover short outages, prevent immediate shutdowns, and provide time for orderly shutdown or recovery.

For installations that require longer runtime, the WB-UPS-OL-1000-8 supports up to five compatible WB-UPS-EBP-18AH24V extended battery packs. Smart Battery Detection automatically recognizes connected packs and adjusts the charging rate.

Good Products to Pair With This UPS

• UPS Battery Backup to compare additional UPS capacities and configurations.
• WattBox Power Solutions for related UPS, power-conditioning, and rack-power products.
• Power Management Solutions for broader backup power and equipment-protection planning.
• Smart Power Conditioners if the installation requires OvrC remote reboot or managed outlet control.
• Network Switches for wired and PoE network installations.
• Network Recorders NVRs for surveillance recording systems.
• Rack-Mount Power Strips & PDU for additional rack power-distribution planning.

Need Help Sizing the UPS?

Send us the model numbers or wattage of the devices you want to protect, along with your preferred runtime. We can help determine whether the WB-UPS-OL-1000-8 has enough capacity or whether a 1500VA, 2000VA, OvrC-compatible, or extended-battery configuration would be a better fit.

What is the WattBox WB-UPS-OL-1000-8 used for?

It provides online double conversion battery backup for AV racks, network closets, NVR systems, routers, switches, control systems, computers, and other sensitive electronics.

What is its maximum capacity?

The UPS is rated for up to 1000VA / 1000W. The total connected load should stay below that limit, with additional headroom recommended for runtime and future expansion.

How many outlets does it have?

It includes 8 built-in outlets for connecting suitable rack, AV, network, security, and computer equipment directly to the UPS.

What are the four critical-load outlets?

Four outlets are intended for the most important equipment in the system. They help prioritize devices such as routers, switches, NVRs, firewalls, and control processors during longer outages.

What is online double conversion?

Online double conversion continuously converts incoming AC power to DC and then back to AC through the inverter. This provides conditioned output power and zero transfer time when utility power fails.

Is this a pure sinewave UPS?

Yes. It provides pure sinewave output in battery mode, making it suitable for sensitive electronics and modern power supplies.

Does it have zero transfer time?

Yes. Transfer time from AC mode to battery mode is zero because connected equipment is already being powered through the inverter.

Does this model support OvrC?

This is the non-OvrC WB-UPS-OL model. It supports local PC software, USB, RS-232, and optional SNMP, but it should not be presented as having the native OvrC pairing features of the WB-OVRC-OLUPS series.

What does the LCD show?

The LCD provides information including battery condition, estimated runtime, load, input and output voltage, frequency, current, alarms, warnings, and fault status.

Does it support computer shutdown?

Yes. USB communication and the supported software can perform graceful shutdown of a compatible computer during an extended outage.

Can I manage it over a network?

Optional SNMP support is available for compatible network-management installations. The required SNMP hardware is sold separately.

How long will it run during an outage?

The official internal-battery chart estimates approximately 2 minutes and 25 seconds at full load, 9 minutes and 26 seconds at 50% load, 18 minutes and 31 seconds at 30% load, and 63 minutes and 40 seconds at 10% load.

Can I extend the runtime?

Yes. It supports up to five compatible WB-UPS-EBP-18AH24V extended battery packs.

How are extended battery packs connected?

The first compatible battery pack connects to the UPS, and additional packs can be daisy-chained. Smart Battery Detection recognizes the connected packs and adjusts the recharge rate.

Can I use it with an NVR and security cameras?

Yes. It can protect an NVR, network switch, router, modem, and other surveillance support equipment, provided the total connected load remains within the UPS capacity.

Can I use it for routers and network switches?

Yes. Routers, switches, modems, gateways, and firewalls are common devices to protect with this UPS when network uptime is important.

Is it rack mountable?

Yes. It has a 2U rack-mount chassis measuring approximately 17.24 inches wide, 3.46 inches high, and 16.14 inches deep.

Can I connect appliances, heaters, or laser printers?

No. Avoid heaters, appliances, laser printers, power tools, and other unsuitable high-draw devices. This UPS is designed for AV, networking, security, control, and computer electronics.

What should I check before ordering?

Check the total connected wattage, runtime goal, critical-device priorities, rack depth, available 2U space, ventilation, management requirements, and whether extended battery packs will be needed.