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The ABB THQL2145 is a double pole, plug-in circuit breaker rated for 45 amps at 120/240 volts with a 10,000 amp interrupting capacity (10kA IC). It is designed for use in residential and light commercial load centers to provide overcurrent and short-circuit protection on two-pole branch circuits. Licensed electricians install this breaker as part of new panel work, service upgrades, or branch circuit additions. The 10kA interrupting rating meets the fault-current requirements of most residential and light commercial applications, making it a reliable choice for standard panel installations.
This breaker is suited for residential and light commercial applications where a two-pole, 45-amp branch circuit is required. Typical uses include HVAC equipment circuits, electric water heaters, dryers, and similar double-pole loads. Its plug-in design allows installation in load centers that accept the THQL breaker series.
Designed as a plug-in style replacement breaker for load centers compatible with the THQL breaker series. Verify panel acceptance of the THQL form factor before installation.
Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Shut off the main breaker and verify the panel is de-energized before handling any breaker or bus connections. Confirm that the load center accepts the THQL plug-in form factor and that the panel bus rating supports the intended circuit load. Do not exceed the breaker ampere rating for the connected circuit conductors.
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