Abb TMQL21125 Miniature Modular Circuit Breaker 125A 2P

Product Description

The ABB TMQL21125 is a 2-pole miniature modular circuit breaker rated at 125 amps with a 42,000-amp (42kA) interrupting capacity. It is designed for use in panelboards and load centers configured with 125-amp modular breaker sockets, fitting the TMB Mini Mod socket series. This breaker provides overcurrent and short-circuit protection in branch circuit and feeder applications. Licensed electricians install this type of device as part of distribution equipment in both residential and light commercial electrical systems.

The TMQL21125 is suited for branch circuit or feeder protection in systems where 125-amp, 2-pole modular-style breakers are specified. It is engineered for use in panelboards accepting 125-amp Mini Mod TMB-style sockets. The 42kA interrupting rating makes it appropriate for installations where available fault current is a key design consideration. This breaker fits applications where a modular, socket-mounted configuration is required rather than a bolt-in or plug-in standard frame.

Key Features

• 125-amp continuous current rating for branch circuit and feeder protection
• 2-pole configuration for 240-volt single-phase or two-leg applications
• 42kA interrupting capacity for high available fault-current environments
• Modular socket-mount design compatible with 125-amp Mini Mod TMB socket panels
• Provides overcurrent and short-circuit protection per standard breaker function

Compatibility

Designed for use in panelboards and enclosures equipped with 125-amp Mini Mod TMB-style modular breaker sockets. Consult panel documentation to confirm socket compatibility before installation.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the panelboard and verify absence of voltage with a calibrated meter before handling or seating the breaker. Ensure the socket and breaker ratings match before inserting the module. Do not exceed the breaker ampere rating with connected load.

Technical Specifications

• Current Rating: 125 amps
• Number of Poles: 2
• Interrupting Capacity: 42kA
• Breaker Type: Miniature Modular (Mini Mod TMB)
• UPC: 783164294286

Standard Information

• Brand: ABB
• Manufacturer Part Number: TMQL21125