Circuit Breaker Replacement Parts

Rating plugs make up most of this category, with replacements for GE Spectra, Power Break and MicroVersaTrip, Square D Micrologic, and Siemens breakers. Each rating plug listing shows its amperage, the frame type it suits and the maximum frame amperage.

Shunt trips, undervoltage releases and closing coils are listed by voltage and by the breaker family and frame they fit, including GE Power Break and Merlin Gerin Compact.

What each part does: a rating plug sets the ampere rating of a breaker that has an electronic trip unit. A shunt trip opens the breaker when its coil is energized, an undervoltage release opens it when control voltage is lost, and a closing coil closes it electrically. Face plates are the front nameplates of General Electric Power Break I breakers and HPC II switches. Lug terminal kits connect the cables, and operating handles, mounting brackets and repair parts such as lug caps and bumper kits cover the mechanical side of the breaker.

Start from the breaker nameplate, which gives the manufacturer, the family, the frame type and the frame ampere rating. For a rating plug you also need the sensor (CT) rating and the trip unit, because a plug is made for one sensor rating and one trip unit family: Spectra RMS, MicroVersaTrip RMS-9, MicroVersaTrip Plus, Siemens SB-EC or TL, or Square D MicroLogic. For shunt trips, undervoltage releases and closing coils the control voltage, AC or DC, is the second value to match. Many BRAH parts keep the OEM number with a BE- prefix, so BE-TPUV8 replaces General Electric TPUV8. If the old part is missing or its number cannot be read, the frame type and frame rating are enough to narrow the listings by family.

To find a part, filter by amperage, voltage or family, or search for the OEM part number on the part you are replacing. All BRAH circuit breaker parts carry a 2-year warranty from the date of invoice.