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Compact grey bolt-on breaker with two toggle switches and lug terminals

GE

GE THQB2140 40A 2-Pole 120/240V AC Circuit Breaker

SKU CH-CNWG-PNYH5

A 40 A two-pole bolt-on breaker rated 120/240 V AC with a 10 kA interrupting rating for lighting panels and load centers

  • 40 A rating protects 120/240 V circuits
  • 2-pole design handles single-phase loads
  • Bolt-on mounting fits 100 A THQ panels
  • 10 kA interrupting rating clears faults safely
  • Lug terminals accept 8–3 AWG conductors

GE THQB2140 40A 2-Pole Breaker

This GE THQB2140 is a miniature circuit breaker rated at 40 amps for 120/240V AC single-phase systems. It uses a bolt-on mounting style and a toggle actuator within the THQB series frame. The unit carries a 10kA interrupting rating and is UL Listed for use in lighting panels and load centers.

Check Panel Compatibility and Wire Range

Verify that your load center accepts bolt-on THQB series breakers before ordering. The terminal lugs accept copper wire from 8 AWG up to 3 AWG. Confirm the available space matches the 3.5 inch length, 1 inch width and 3.3 inch depth. This breaker is not rated for DC voltage applications.

Suits Standard Residential Circuits.

This breaker suits electricians and homeowners protecting 40A branch circuits in compatible GE load centers. It does not suit installations requiring DC voltage ratings, higher interrupting capacities or amperages beyond 40A. Buyers needing plug-in mounting or different frame sizes should look at other series.

Highlights

  • 40 A rating protects 120/240 V circuits
  • 2-pole design handles single-phase loads
  • Bolt-on mounting fits 100 A THQ panels
  • 10 kA interrupting rating clears faults safely
  • Lug terminals accept 8–3 AWG conductors

Specifications

BrandGE

Questions about this item

Does the THQB2140 come with the terminal lug or must I buy it separately?

The breaker includes a terminal lug for wire connections; no additional lug purchase is required.

How do I choose between the THQB series ratings when my panel accepts 40 A two-pole breakers?

Select the 40 A two-pole version rated 120/240 V AC to match the panel's voltage and the circuit's ampacity.

What does the 10 kA AIR rating mean for a lighting panel installation?

It indicates the breaker can safely interrupt up to 10 kA of fault current at 120/240 V AC in the panel.

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