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Grey rectangular plug-in circuit breaker with black toggle switch and metal lugs

GE

GE THQL21100 100 A 2-pole plug-in circuit breaker 120/240 V AC

SKU CH-NCT2-XBAEC

A 100 A two-pole plug-in breaker rated 120/240 V AC with a 10 kA interrupting capacity for compatible load centres

  • 100 A protection for heavy-duty 120/240 V circuits
  • 10 kA interrupting rating handles severe fault currents
  • Two-pole design controls both hot legs simultaneously
  • Plug-in mounting fits Power Mark Gold and AQ load centers
  • Compact 3.3 × 2 × 2.4 in frame saves panel space

GE THQL21100 100 A 2-pole breaker

This miniature circuit breaker fits Power Mark Gold and AQ load centres. It provides 100 A overcurrent protection for single-phase 120/240 V AC service. Electricians and facility managers use it for main or branch circuits in residential and light-commercial panels.

Plug-in mounting with 10 kA interrupting

The plug-in design allows tool-free installation on the bus bar. A standard toggle actuator gives clear on/off indication. Rated 10 kA at 120/240 V AC, it limits let-through energy during fault conditions without requiring DC rating.

Lug terminals on a 100 A frame

Terminal lugs accept conductors sized for the 100 A frame. The 2-pole construction occupies two adjacent panel spaces measuring 3.3 in long, 2 in wide and 2.4 in deep. Sustained loads at rated current operate within the thermal trip curve defined for the THQL series.

Highlights

  • 100 A protection for heavy-duty 120/240 V circuits
  • 10 kA interrupting rating handles severe fault currents
  • Two-pole design controls both hot legs simultaneously
  • Plug-in mounting fits Power Mark Gold and AQ load centers
  • Compact 3.3 × 2 × 2.4 in frame saves panel space

Specifications

BrandGENERAL ELECTRIC

Questions about this item

How do I install the GE THQL21100 in a Power Mark Gold load center and what step is often missed?

Align the plug-in base with the panel bus stabs, press firmly until the breaker seats fully, then torque the lug terminals to the panel manufacturer's specification; the step often missed is verifying the lug torque after seating.

What maintenance or replacement will the GE THQL21100 need over its service life?

The breaker itself requires no scheduled maintenance; replace it if it trips repeatedly without overload, shows discoloration at the lugs, or fails to reset after a fault.

What is the first limit reached on the GE THQL21100 under sustained heavy loading?

The 10 kA interrupting rating at 120/240 V AC is the limiting factor; sustained currents above 100 A will cause thermal tripping before the magnetic rating is tested.

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