3-Phase Modular UPS Battery Cabinets


$3,974.00 MSRP 
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  • Hot-swappable: Yes
  • Form Factor: Rack/Tower/Stack
  • Smart Battery Management: Yes
  • Battery Type: VRLA
  • Warranty: 1 year

Product Overview

The CyberPower BCT3L9N125 3-Phase Modular UPS Battery Cabinet can hold up to 6 battery modules (BM120V30ATY). These 3-layer units can be configured as stand-alone cabinets, rack mounted, or stacked with another component of our modular UPS system. Includes a One-Year Limited Warranty.

Product Features

Smart Battery Management
Improves and extends the functional life of a UPS battery and reduces excessive heat during work cycles by using a three-cycle charging process.

Expandable Runtime
Additional battery modules in BCT3L9N125 cabinets will increase runtimes.

Hot-Swappable Batteries
Keeps equipment running by eliminating downtime during UPS power maintenance.

Customizable Configuration
The customizable modular design can be configured as a tower, side-by-side, or integrated within a rack.

One-Year Warranty
CyberPower will repair or replace a defective UPS system (including batteries) within one year of your 3-Phase Modular UPS installation. See warranty for details.

Compatible Products

This product can expose you to chemicals including Nickel, which are known to the State of California to cause cancer, and Lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to http://www.P65Warnings.ca.gov.

Expand All
Battery Module Capacity Maximum 6
Nominal Output Voltage 240 VAC
Color Black
Form Factor Modular
Material of Construction Metal
Mounting Hardware Yes
Rack Height 11U
Physical Dimensions – (WxHxD) (cm) 48.51 x 60.71 x 77.47 (cm)
Physical Dimensions – (WxHxD) (in) 19.1 x 23.9 x 30.5 (in)
Physical Dimensions – (WxHxD) (mm) 485 x 607 x 775 (mm)
Physical Weight (kg) 61.1
Physical Weight (lb) 134.7
Dimensions – Shipping
Shipping – Weight (kg) 101.15
Shipping – Weight (lb) 223
Shipping Dimensions – (WxHxD) (cm) 63.2 x 78.74 x 101.6 (cm)
Shipping Dimensions – (WxHxD) (in) 24.88 x 31 x 40 (in)
Shipping Dimensions – (WxHxD) (mm) 631.95 x 787.4 x 1016.0 (mm)
Dimensions – Power Module
Power Module – Rack Units 11U
Operating Elevation 0 – 10000 ft (0 – 3048 m)
Operating Elevation Note At ≤1000m above sea level, de-rate power by 1% per 100m between 1000m and 3048m
Operating Relative Humidity 0 – 95 % (non-condensing)
Operating Temperature 32 – 104 °F (0 – 40 °C)
Operating Temperature Note Battery life is halved for every 10°C increase above 20°C
Storage Battery Temperature Note Optimum battery storage between -15°C and 20°C
Storage Relative Humidity 0 – 95% (non-condensing)
Storage Temperature 5 – 104 °F (-15 – 40 °C)
Environmental RoHS Compliant
Safety cTUVus
UL1778, CSA C22.2 No. 107.3-14
CFR 47 FCC Part 15, Subpart B, Class A
Product Warranty 1 Year Limited Warranty


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What is N+1?

N = Power delivered by the UPS (e.g. 20KVA). +1 refers to an extra power and battery module for redundancy. If there is a fault in one module it can be replaced while still providing fully protected power.

What Is N+N?

N+N is a second complete UPS wired in parallel, distributing 50% of the load evenly across the two units. If one UPS were to fail, the load would be seamlessly picked up by the reciprocal UPS.

What Is (N+1)+(N+1)?

Redundant redundancy, for the most critical applications. Two N+1 UPS systems in parallel to increase reliability exponentially and eliminate downtime. Provide confidence that you are prepared for the unexpected.

Is my UPS “Hot-Swappable”?

If N+1 is purchased, YES! If your system is not configured for N+1, each power module supplies 10KVA of power, so if you are running 20KVA of load on a 40KVA system you can swap power modules because the system will remain running on 30 of 40KVA, easily picking up your 20KVA load until the new power module is installed. For batteries, the same applies. If at least one extra battery string is provided, the UPS can operate fully protected while the battery modules are replaced one at a time.

Do I need the optional circuit breakers?

If the power feed is protected upstream, by an appropriately sized overcurrent protection device, an input circuit breaker is not required. If the output is feeding a distribution panel with a properly sized main circuit breaker, the output breaker is not required. With all of that said, having the circuit breakers located at the UPS adds an extra disconnect point, centralized at the UPS for quick and easy bypass function for repairs or maintenance. If paralleling UPS systems, both systems should be equipped with the optional circuit breakers.

Our Technical Support team will be happy help you with technical questions during business hours.

Our technical support team is available between 6AM and 9PM CST
Monday through Friday
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 Model Replacement Battery Cartridge QuantityNominal Output VoltageRack HeightForm factor MSRP