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This product may be incompatible with your voltage or frequency, or it may be designed to comply with the standards or usage in another country. [MP0042]

Product Status Discontinued on 1/12/2023

UPS Maintenance Bypass Panel for SUTX40K - 3 Breakers

Part Number:  SUT40KMBPX

SUT40KMBPX product image


UPS Maintenance Bypass Panel Keeps Equipment Powered During UPS Maintenance
This wall-mount three-breaker maintenance bypass panel is compatible with Tripp Lite’s SUTX40K 3-phase UPS system. It allows you to reroute power around the UPS, providing an alternate path for electricity that keeps the connected load operational while the UPS is offline for maintenance or repairs.
Features 3 Built-In Circuit Breakers to Isolate Loads
Three 4-pole circuit breakers – an AC input breaker, a maintenance bypass breaker and a maintenance isolation breaker – are connected to heavy-duty buswork and isolate the UPS system from its connected load with no loss of network availability. This allows the load to remain continuously powered without costly downtime. A Kirk-key interlock system enhances safety and security. Removable handles allow the panel’s trim cover to be removed for internal access. The 125A unit has a kAIC rating of 10K.
Switching Between Normal and Bypass Modes Is Easy
When a UPS needs maintenance, this UPS bypass panel keeps power supplied to components via its mechanical interlock system by switching power to the external bypass breaker. Simply unscrew the interlock switch, rotate the switch from the UPS AC input breaker (SW1) to the bypass breaker (SW2), then turn on the bypass breaker and turn off the UPS and isolation breaker (SW3) to perform UPS maintenance without service interruption.
Convenient Wall-Mount Installation
Made of galvanized steel, the service bypass panel has rear mounting holes for installation on a smooth, solid wall (mounting hardware not included).

System Requirements

  • Tripp Lite SUTX40K 3-phase UPS system

Package Includes

  • SUT40KMBPX UPS Maintenance Bypass Panel for SUTX40K - 3 Breakers
  • Installation and Operation Manual
RoHS compliant


UPC Code037332241108
Accessory TypeBypass Panel
Accessory ClassUPS Accessories
Nominal Input Voltage Description400Y/230 VAC 3 phase, 4 wire (3P+N+E)
Output Capacity Details125A maximum
Form Factors SupportedWallmount
Shipping Dimensions (hwd / in.)22.00 x 25.00 x 10.00
Unit Dimensions (hwd / in.)17.500 x 20.000 x 4.600
Unit Weight (lbs.)20
Product Warranty Period (Worldwide)1-year limited warranty

Questions & Answers


Need help with your purchase?
We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +(773) 869-1776 or email