Abb THQL2120 2-pole Circuit Breaker 20A 120/240V

Product Description

The ABB THQL2120 is a 2-pole thermal-magnetic circuit breaker rated for 120/240 volt single-phase residential and light commercial electrical systems. It provides overcurrent and short-circuit protection for branch circuits in load centers and panelboards. The THQL series uses a thermal-magnetic trip mechanism that responds to both sustained overloads and instantaneous fault currents. Licensed electricians install this breaker during new construction, panel upgrades, and circuit additions. It fits standard THQL-compatible load centers and is a common replacement in residential electrical panels.

The THQL2120 is suited for residential load centers and light commercial panelboards requiring a 2-pole, 20-amp branch circuit breaker. Typical applications include 240-volt appliance circuits, HVAC disconnect protection, and general-purpose dual-pole branch circuits. It is designed to be installed in load centers that accept THQL-series breakers.

Key Features

• 2-pole configuration provides 240-volt branch circuit protection
• Thermal-magnetic trip mechanism responds to both overload and short-circuit conditions
• Standard THQL footprint for compatible load center installation
• Single-phase 120/240 volt rated for residential and light commercial panels

Compatibility

Designed as an OEM-style replacement for residential and light commercial load centers accepting THQL-series 2-pole circuit breakers.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize the panel and verify absence of voltage with a meter before handling any breaker or bus connection. Do not install a breaker into a panel that is not rated for THQL-series devices. Confirm the panel's main breaker is off and that the new breaker is fully seated on the bus bar before restoring power.

Technical Specifications

• Poles: 2
• Voltage Rating: 120/240 volts
• UPC: 783164012910

Standard Information

• Brand: ABB
• Manufacturer Part Number: THQL2120