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Grey GE THQL21WY20 two-pole circuit breaker with toggle actuator

GE

GE THQL21WY20 Circuit Breaker 20A 2 Pole 120/240V

SKU CH-62HH-WQ75B

A 20 A, two-pole miniature circuit breaker with switched neutral, plug-in mounting and 10 kA interrupting rating for Power Mark Gold load centres

  • 20 A switched-neutral protection for single-phase 120/240 V circuits
  • 10 kA interrupting rating handles high fault currents safely
  • Plug-in mounting fits Power Mark Gold and AQ load centres
  • Screw-clamp terminals accept solid or stranded conductors securely
  • Compact 3.3 × 2 × 2.4 in frame saves panel space

What This Breaker Does

The GE THQL21WY20 is a 20 A moulded-case circuit breaker designed for 120/240 V AC single-phase systems. It uses a switched-neutral, two-pole toggle mechanism and plugs into compatible AQ load centres or Power Mark Gold panels. The unit carries a 10 kA interrupting rating at its rated voltage.

Check Your Panel First

Verify that the load centre accepts THQL-series plug-in breakers and that the bus is rated for at least 100 A frame size. Confirm the panel provides two adjacent spaces for a two-pole device and that the screw-clamp terminals suit your wire gauge. The breaker is not rated for DC applications.

Sustained Load Behaviour

Under continuous operation the breaker will carry its 20 A rating within the 100 A frame thermal limits defined by the THQL design. The 10 kA AIR rating applies to short-circuit interruption at 120/240 V AC, not to prolonged overload endurance. Ambient temperature inside the enclosure will affect trip timing as with any thermal-magnetic device.

Highlights

  • 20 A switched-neutral protection for single-phase 120/240 V circuits
  • 10 kA interrupting rating handles high fault currents safely
  • Plug-in mounting fits Power Mark Gold and AQ load centres
  • Screw-clamp terminals accept solid or stranded conductors securely
  • Compact 3.3 × 2 × 2.4 in frame saves panel space

Specifications

BrandGE

Questions about this item

Does the THQL21WY20 come with mounting hardware or must I buy screws separately?

The breaker uses a plug-in mounting style for compatible load centers and has screw-clamp terminals for wire connections; separate mounting screws are not required.

How do I decide between the 20 A version and other amp ratings in the THQL series?

Choose the 20 A rating when the branch circuit is designed for a 20 ampere load; other THQL ratings exist for different circuit ampacities.

What does the 10 kA AIR rating mean when the breaker is installed in a panel?

It indicates the breaker can safely interrupt up to 10 kA of fault current at 120/240 V AC in a Power Mark Gold or AQ panel.

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