Square D THQL2125 25A 2-pole Circuit Breaker 120/240V

Product Description

The SQUARE D THQL2125 is a 2-pole, plug-in circuit breaker rated for 25 amps at 120/240 volts AC with a 10 kiloamp interrupting rating. It is designed for use in load centers where non-interchangeable, panel-dedicated overcurrent protection is required. The quick-make/quick-break mechanism ensures fast, reliable operation during fault conditions, while the common trip bar guarantees simultaneous disconnection of both poles. A highly visible trip indication makes it easy for electricians to identify a tripped breaker during panel inspections or service calls.

This breaker is intended for residential and light commercial load center installations where a dedicated 25-amp double-pole circuit is needed. Typical applications include branch circuits serving appliances, HVAC equipment, or sub-panels requiring 240-volt service. It accepts wire sizes from 14 to 8 AWG, making it compatible with standard copper or aluminum branch circuit conductors used in most panel wiring configurations. Reverse feed capability adds flexibility for specialized wiring arrangements.

Key Features

• 25-amp, 2-pole configuration provides 120/240-volt branch circuit protection
• 10 kiloamp interrupting rating handles high fault-current environments
• Quick-make/quick-break mechanism ensures fast response to overload or short-circuit conditions
• Common trip bar simultaneously opens both poles during a fault
• Easy-to-spot trip indication speeds up panel diagnostics
• Suitable for reverse feed applications
• GSA compliant and UL listed (UL E11592)

Compatibility

Designed as a non-interchangeable plug-in replacement for load center circuit breaker applications. Consult your load center manufacturer documentation to confirm panel compatibility before installation.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the main breaker before working inside the load center panel. Verify the load center accepts plug-in style breakers and that the bus bar configuration matches this 2-pole unit before seating the breaker. Do not exceed the wire size range of 14 to 8 AWG on the breaker terminals.

Technical Specifications

• Current Rating: 25 amps
• Voltage Rating: 120/240 volts AC
• Number of Poles: 2
• Interrupting Rating: 10 kiloamps
• Mounting Type: Plug-In
• Type: Non-Interchangeable
• Used On: Load Center
• Wire Size: 14 to 8 AWG
• Approval: UL E11592

Standard Information

• Brand: SQUARE D
• Manufacturer Part Number: THQL2125