Square D QOU1100 100A 240V 1-pole Miniature Circuit Breaker

Product Description

The SQUARE D QOU1100 is a single-pole miniature circuit breaker rated for 100 amps at 240 volts AC. It is designed for panel mount installation and provides overcurrent protection in branch circuits serving air conditioning, refrigeration, and heating equipment. The QOU1100 accepts wire sizes from 14 to 2 AWG via box lug terminals, making it compatible with a range of conductor sizes commonly used in HVAC and light commercial electrical work. Electricians and HVAC technicians install this breaker as a dedicated circuit protection device within a load center or distribution panel.

This circuit breaker is suited for residential and light commercial applications where a dedicated single-pole branch circuit is required for air conditioning equipment, refrigeration units, or electric heating systems. Its box lug terminal connection simplifies field wiring during new installations and service replacements. At 0.48 pounds and compact panel-mount dimensions, it fits within standard load centers without occupying excessive space in tight panel enclosures.

Key Features

• 100-amp overcurrent protection on a single pole at 240 volts AC
• Box lug terminal connection accepts 14 to 2 AWG conductors
• Panel mount design for direct installation in compatible load centers
• Rated for air conditioning, refrigeration, and heating circuit applications
• UL Listed and CSA certified; meets IEC and RoHS requirements
• Compact form factor at 0.48 pounds for easy handling and installation

Compatibility

Designed for use with air conditioning and refrigeration equipment and heating systems requiring a single-pole 100-amp branch circuit breaker in a panel mount load center configuration.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the panel and verify absence of voltage before handling any breaker or wiring in the load center. Ensure conductor sizing meets NEC requirements for the circuit load and that wire terminations are seated fully in the box lug terminals before energizing. Do not exceed the breaker ampacity rating or use conductor sizes outside the 14 to 2 AWG range specified for the terminal connection.