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Compact grey circuit breaker with black toggle switch and screw terminals

GE

GE THHQL1120 Circuit Breaker 20A 1 Pole 120/240V AC

SKU CH-0ANN-ZXKB8

A 20 A single-pole miniature breaker with 22 kA interrupting capacity at 120/240 V AC for Power Mark Gold and AQ panels

  • High interrupting capacity protects circuits up to 22 kA
  • Single-pole design rated for 20 A at 120/240 V AC
  • Plug-in mounting fits AQ and Power Mark Gold load centres
  • Toggle actuator provides clear on/off indication
  • Screw-clamp terminals accept wire for secure connections

Circuit Breaker for AQ and Power Mark Gold Panels

The GE THHQL1120 is a single-pole miniature circuit breaker rated at 20 amps for 120/240V AC systems. It belongs to the THHQL series and provides high interrupting capacity for residential and light commercial load centres. Electricians and facility managers select it for standard branch-circuit protection in compatible panels.

Plug-in mounting with screw-clamp terminals

The breaker uses a plug-in mounting style that seats directly onto the bus of AQ lighting panels and Power Mark Gold load centres. A toggle actuator gives clear on/off indication, while screw-clamp terminals accept wire without specialised tools. Physical dimensions are 3.3 inches long, 1 inch wide and 2.4 inches deep, fitting the standard THQ frame envelope.

22 kA interrupting rating at 120/240V AC

The device carries a maximum AIR rating of 22 kA at 120/240V AC, defining the highest fault current it can safely interrupt. It is also rated for 48V DC applications where the same interrupting capacity does not apply. Installers must verify that the available fault current at the panel does not exceed this limit and that the panel series matches the approved compatibility list.

Highlights

  • High interrupting capacity protects circuits up to 22 kA
  • Single-pole design rated for 20 A at 120/240 V AC
  • Plug-in mounting fits AQ and Power Mark Gold load centres
  • Toggle actuator provides clear on/off indication
  • Screw-clamp terminals accept wire for secure connections

Specifications

BrandGE

Questions about this item

What does the 22 kA AIR rating at 120/240 V AC mean for this breaker?

It means the breaker can safely interrupt up to 22 000 amps of fault current on a 120/240 V AC circuit without damage.

Will the 1 inch width fit a standard load-center slot?

Yes, the 1 inch width matches a single pole space in compatible GE Power Mark Gold and AQ load centers.

How do I install the plug-in breaker and what step is often missed?

Snap the breaker onto the panel bus, then tighten the screw-clamp terminals to the specified torque; the torque step is frequently skipped.

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