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Grey rectangular three-pole plug-in breaker with toggle actuators, 3.3 by 3 by 2.4 inches

GE

GE THQL32040 40A 3 Pole 120/240V 10kAIC Circuit Breaker

SKU CH-ECQ2-4CB17

A 40 A three-pole plug-in breaker rated for 120/240 V AC with a 10 kA interrupting capacity

  • Product typeCircuit Breakers
  • 40 A rating supports heavy-duty three-phase loads
  • 10 kAIC interrupting capacity handles high fault currents
  • Plug-in mounting fits Power Mark Gold and AQ panels
  • Standard toggle actuator provides clear on/off indication
  • Compact 3.3 × 3 × 2.4 in frame saves panel space

Three-Pole 40 A Protection

The GE THQL32040 is a standard Q-Line miniature circuit breaker rated at 40 A and 120/240 V AC with a 10 kA interrupting rating. It mounts by plug-in into compatible AQ panelboards and Power Mark Gold load centers using a toggle actuator and lug terminals.

Replaces Single or Double-Pole Units

This three-pole breaker replaces single-pole or two-pole devices when a three-phase circuit or a 120/240 V multi-wire branch requires simultaneous disconnection. The upgrade is worth it when the load center series matches AQ or Power Mark Gold and the frame size fits the 100 A THQ envelope.

Plug-In Mounting and 10 kAIC Limit

The plug-in mounting style restricts use to panels that accept Q-Line plug-on breakers, and the 10 kAIC rating at 120/240 V AC defines the maximum available fault current the device can safely interrupt. DC circuits are not rated, and the breaker does not fit panels outside the specified series.

How it compares

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

Price $88.99
Pricier than about 65% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameGeneral Electric
Model nameTHQL32040
Product typeCircuit Breakers

Questions about this item

Does the 3.3 in length and 3 in width fit a Power Mark Gold load center?

Yes, the 3.3 in by 3 in frame matches the 100A/THQ size used in Power Mark Gold load centers and AQ lighting panels.

How do I plug the breaker into the panel and which step is often missed?

Align the plug-in base with the panel bus, press firmly until seated, then torque the lug terminals to the panel's specified value — skipping the torque step is the common error.

When should the 40 A breaker be replaced after repeated trips?

Replace the unit if it trips at or below 40 A, shows discolored lugs, or will not stay latched after the 10 kAIC interrupting rating has been tested.

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