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GE THQB32070 three-pole miniature circuit breaker, grey toggle body, bolt-on lugs, 3.5 in long

GE

GE THQB32070 Miniature Circuit Breaker 70A 3 Pole 240V AC 10kA

SKU CH-7CZJ-26YFH

Three-pole 70 A breaker rated 10 kA at 120/240 V AC with bolt-on mounting for lighting panels and load centres

  • 70 A rating protects three-phase circuits up to 240 V AC
  • 10 kA interrupting capacity clears heavy fault currents safely
  • Bolt-on mounting fits GE THQB load centres directly
  • UL Listed compliance meets electrical code requirements
  • Terminal lugs accept 8 AWG to 1/0 AWG conductors

GE THQB32070 70A Three-Pole Breaker

The GE THQB32070 is a 70 amp, three-pole miniature circuit breaker rated for 120/240V AC systems. It uses a bolt-on mounting style and a toggle actuator for secure installation in compatible load centres. The unit carries a 10kA interrupting rating at the rated voltage. It is designed for standard branch-circuit protection in residential or light commercial panels.

Sustained Load Behaviour

Under continuous operation the breaker carries its full 70A rating without nuisance tripping when ambient conditions remain within specification. The thermal-magnetic mechanism responds to persistent overloads by opening the circuit before conductor insulation is damaged. A 10kA short-circuit rating ensures the contacts can clear high-fault currents without catastrophic failure. Bolt-on mounting maintains low contact resistance during extended service.

Upgrade and Replacement Context

This breaker replaces a worn or damaged THQB-series unit in a 100A frame load centre. The jump is justified when the existing device shows signs of heat stress, fails to reset, or no longer meets the 10kA AIR requirement. It is not suited for panels requiring plug-in mounting or for DC voltage applications. Installers needing a different ampacity or pole count must select the appropriate THQB variant.

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Price $302.99
Pricier than about 87% of the 1,135 comparable items (median $54.99).

Specifications

Product
Brand nameGE

Questions about this item

How much heat does the 70 A THQB32070 generate when it carries full load continuously?

The breaker is rated for 70 A at 120/240 V AC with a 10 kA interrupting capacity; normal operation at rated current stays within UL-listed temperature-rise limits for bolt-on devices.

What panel or load-centre must I already have to install this 3-pole bolt-on breaker?

It fits GE lighting panels and load centres that accept the 100 A THQ frame, using the supplied lug terminals for 8 AWG to 1/0 AWG conductors.

Will this 3-pole 240 V AC breaker coordinate with older single-pole 120 V breakers already in my panel?

Yes, the THQB series is designed for the same 100 A frame and 120/240 V AC system, so it mounts alongside existing single-pole units in compatible GE load centres.

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