3-Phase Circuit Breaker


$644.00 MSRP 
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  • Amperage: 100 A
  • Breaker Type: Input/Output
  • Number of Poles: 3
  • Warranty: 1 year

Product Overview

The CyberPower SMUCB100UAC 3-Phase Modular UPS Circuit Breaker Hardware provides convenience and safety with optional 20KVA UPS Input/Output. If the input side overcurrent protection device is in a different area of your facility, having the input circuit breaker at the UPS adds an extra disconnect point for easy bypass during repairs or maintenance. The output circuit breaker also provides protection if your load is connected directly to the UPS without an appropriate overcurrent protection device. Includes a One-Year Limited Warranty.

For Cyberpower Smart App Online 3-Phase Modular UPS system SM020KAMFA.

Product Features

Localized Protection
Provides the ability for input and output power breakers at the UPS when a utility breaker is not present, or addition protection is desired.

Added Equipment Safety
Input and output breakers deliver additional overcurrent protection for UPS and connected equipment.

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 Oxide, which is known to the State of California to cause cancer, and Toluene, 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
Color White/Gray
Form Factor Modular
Material of Construction Metal
Mounting Hardware Yes
Physical Dimensions – (WxHxD) (cm) 7.62 x 12.95 x 8.38 (cm)
Physical Dimensions – (WxHxD) (in) 3.00 x 5.10 x 3.30 (in)
Physical Dimensions – (WxHxD) (mm) 76 x 130 x 84 (mm)
Physical Weight (kg) 1.1
Physical Weight (lb) 2.43
Dimensions – Shipping
Shipping – Weight (kg) 1.09
Shipping – Weight (lb) 2.4
Shipping Dimensions – (WxHxD) (cm) 9.22 x 11.43 x 13.97 (cm)
Shipping Dimensions – (WxHxD) (in) 3.63 x 4.5 x 5.5 (in)
Shipping Dimensions – (WxHxD) (mm) 92.2 x 114.3 x 139.7 (mm)
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 -4 – 158 °F (-20 – 70 °C)
Environmental RoHS Compliant
Safety UL489/CSA C22.2/CE
IEC 60947-1
IEC 60947-2
EN 50581
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 Description MSRP