Abb tqmh000f Main Circuit Breaker Base 125A

Product Description

The ABB tqmh000f is a P-Series main circuit breaker base designed for use in residential and light commercial load centers. This component provides the mounting base only — no breaker is included — and accepts a compatible main circuit breaker to complete the assembly. It supports a maximum rating of 125 amps, making it suited for standard residential service entrance applications. Licensed electricians install this part when replacing a damaged base or building out a new panel assembly that requires a separate main breaker mount.

This base is intended for use in P-Series load centers requiring a dedicated main breaker position. It is compatible with THQL or THHQL main circuit breakers as noted by the manufacturer. Typical installations include residential main panels and subpanel configurations where the main breaker is field-installed separately from the enclosure.

Key Features

• Accepts THQL or THHQL main circuit breakers
• 125 amp maximum rating
• Base-only configuration — breaker ordered separately
• P-Series load center compatible design
• OEM-style fit for straightforward field installation

Compatibility

Designed for use with THQL or THHQL main circuit breakers in P-Series load center assemblies.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements. Always disconnect and lock out utility power at the meter before servicing any load center main breaker base. Verify breaker compatibility with the specific load center model before installation. Do not energize the panel until all connections are secured and the enclosure is properly closed.