Square D QOU180 80A 240V 1-pole Miniature Circuit Breaker

Product Description

The SQUARE D QOU180 is a single-pole miniature circuit breaker rated for 80 amps at 240 volts AC. It provides overcurrent and short-circuit protection for branch circuits in residential and light commercial electrical panels. The QOU180 accepts wire sizes from 12 AWG through 2/0 AWG via box lug terminals, making it suitable for a range of conductor sizes commonly found in HVAC, refrigeration, and heating circuit applications. Licensed electricians install this breaker as part of panel upgrades, service calls, or new circuit installations. It carries UL Listed, CSA, IEC, and RoHS certifications.

The QOU180 is rated for use with air conditioning and refrigeration equipment as well as heating systems, making it a common choice for dedicated HVAC branch circuits. Its panel mount design fits compatible QOU-series load centers. The box lug terminal connection supports a wide wire range, reducing the need for reducers or adapters when terminating larger conductors on high-draw equipment circuits.

Key Features

• 80 amp continuous current rating at 240 volts AC
• Single-pole configuration for dedicated branch circuit protection
• Box lug terminals accept 12 AWG through 2/0 AWG conductors
• Panel mount design for QOU-series load centers
• Rated for air conditioning, refrigeration, and heating equipment circuits
• UL Listed, CSA certified, IEC compliant, and RoHS compliant

Compatibility

Designed for use with air conditioning and refrigeration equipment and heating systems, per manufacturer rating. Compatible with QOU-series panel mount load centers. Verify panel series compatibility before installation.

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 bus bar connections. Ensure conductor size falls within the rated 12 AWG to 2/0 AWG range before terminating in the box lug. Do not exceed the breaker ampere rating for the intended circuit load.