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Grey three-pole miniature circuit breaker with toggle actuators and bolt-on lugs

GE

GE THQB32045 Miniature Circuit Breaker 45A 3 Pole 240V AC 10kA

SKU CH-6B57-RJQDK

A 45 A, three-pole bolt-on breaker rated 120/240 V AC with a 10 kA interrupting capacity for lighting panels and load centres

  • Three-pole protection for 120/240 V AC circuits
  • 45 A rating matches branch-circuit load requirements
  • 10 kA interrupting capacity clears short-circuit faults
  • Bolt-on mounting fits GE 100 A THQ load centres
  • UL Listed for lighting panels and load centres

GE THQB 45 A Three-Pole Breaker

This GE THQB miniature circuit breaker provides 45-ampere overcurrent protection on three poles at 120/240 V AC with a 10 kA interrupting rating. It uses a bolt-on mounting style and a toggle actuator for installation in compatible lighting panels and load centres.

Installers fitting 45 A three-phase branch circuits

Electricians wiring 45-ampere three-phase branch circuits in panels that accept THQB bolt-on breakers will find the correct ratings and lug terminals here. Builders needing a different ampere rating, a two-pole or single-pole device, or a DIN-rail mounting style must select another part.

10 kA interrupting rating at 120/240 V AC

The breaker carries a maximum AIR of 10 kA at 120/240 V AC, which determines whether it can safely clear a fault in the intended panel. Verify that the available fault current at the installation point does not exceed this value before specifying the device.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $239.99
Pricier than about 84% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameGE

Questions about this item

Which THQB breaker rating should I choose for a 45 A three-phase load?

Select the THQB32045 when the circuit requires exactly 45 A on three poles; the frame accepts 100 A so the breaker fits the same panel space as other ratings in the series.

What does the 10 kA rating mean once the breaker is installed?

It guarantees the breaker can safely interrupt up to 10 kA of fault current at 120/240 V AC without damage.

How does the bolt-on mounting and lug terminal affect wire installation?

The breaker bolts directly to the panel bus and the lug accepts copper wire from 8 AWG up to 3 AWG for secure termination.

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