Square D QOU335 35A 240V 3-pole Miniature Circuit Breaker

Product Description

The SQUARE D QOU335 is a 3-pole miniature circuit breaker rated at 35 amps and 240 volts AC, designed for panel mount installation in residential and light commercial electrical distribution systems. It provides overcurrent and short-circuit protection for three-phase or multi-wire branch circuits. Box lug terminals accept wire in the 14 to 2 AWG range, giving installers flexibility across a variety of conductor sizes. At 1.13 pounds, the QOU335 is a compact, durable breaker suited for licensed electricians working in load centers and panelboards where reliable circuit protection is required.

The QOU335 is rated for use with air conditioning and refrigeration equipment as well as heating systems, making it a practical choice for HVAC service professionals who need code-compliant overcurrent protection on dedicated equipment circuits. It is built to panel mount configurations and fits into compatible Square D QOU-series load centers. The box lug terminal design supports straightforward conductor termination during installation or replacement work on existing panels.

Key Features

• 35-amp overcurrent protection rated at 240 volts AC
• 3-pole configuration for multi-wire branch circuit applications
• Box lug terminals accept 14 to 2 AWG conductors
• Panel mount design for load center installation
• Rated for air conditioning, refrigeration, and heating equipment circuits
• Meets CSA, IEC, UL Listed, and RoHS compliance standards

Compatibility

Designed for use with air conditioning, refrigeration, and heating equipment; suitable for panel mount installation in compatible QOU-series Square D load centers. Verify panel 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 with a meter before handling or replacing any circuit breaker. Ensure conductor size falls within the 14 to 2 AWG range supported by the box lug terminals. Do not exceed the breaker ampacity rating for the connected load.