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GE THHQB 20 amp three pole bolt on breaker grey plastic housing toggle switch visible

GE

GE THHQB 32020 Circuit Breaker 20A 3 Pole 240V AC

SKU CH-29JH-0N3AK

A bolt-on miniature circuit breaker rated 20 A, three-pole, 240 V AC with 22 kA interrupting capacity for load-centre bus connections

  • High interrupting capacity protects circuits up to 22kA
  • 20 A three-pole breaker handles 120/240 V AC loads
  • Bolt-on mounting fits GE load centers and lighting panels
  • Screw-clamp terminals accept wire down to 14 AWG
  • Compact 3.3 × 3 × 2.4 in frame saves panel space

Circuit Breaker for Three-Phase Panels

The GE THHQB 32020 is a bolt-on miniature circuit breaker rated at 20 A for 120/240 V AC three-phase systems. It provides high interrupting capacity protection for load centres and lighting panels in commercial or residential electrical installations.

22 kA Interrupting Rating and Screw-Clamp Terminals

The 22 kA AIR rating at 120/240 V AC allows the breaker to clear severe fault currents safely. Screw-clamp terminals accept conductors down to 14 AWG, securing connections without additional lugs or tools beyond a standard screwdriver.

Compact Bolt-On Frame Fits 60 A Bus Bars

A 60 A frame size measuring 3.3 in long, 3 in wide and 2.4 in deep mounts directly onto compatible bus bars. The toggle actuator gives clear on/off indication, while the three-pole layout occupies a single slot for balanced three-phase circuit protection.

How it compares

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

Price $392.99
Pricier than about 90% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameGE

Questions about this item

Will the screw-clamp terminals accept wire smaller than 14 AWG if I need to replace a conductor later?

The terminals are rated for a minimum wire size of 14 AWG, so smaller conductors should not be used.

Does the 22 kA interrupting rating limit how long the breaker can carry its full 20 A load continuously?

The 22 kA AIR rating is a short-circuit withstand value; it does not restrict continuous current, which remains 20 A per pole.

How much heat does the three-pole unit add to a panel when it runs all day at 20 A per phase?

With bolt-on mounting and a 60 A frame, the breaker dissipates normal load heat inside the enclosure; no forced-air cooling is required.

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