Square D QO150CP 50A Single Pole Circuit Breaker

Product Description

The Square D QO150CP is a 50-amp single-pole circuit breaker designed for branch circuit overcurrent protection in residential and light commercial electrical panels. This breaker interrupts fault current by tripping when an overload or short circuit condition is detected, protecting downstream wiring and connected loads. It is installed by licensed electricians as part of a panelboard assembly. The QO150CP ships in a package quantity of 10, making it practical for new construction projects and panel changeouts that require multiple breakers of the same rating.

This breaker is suited for 120-volt single-pole branch circuits in residential service panels and light commercial distribution boards. Common applications include dedicated branch circuits for appliances, HVAC equipment feeds, and general-purpose circuits requiring 50-amp overcurrent protection. The unit-of-measure designation is EA, and the package quantity of 10 supports multi-unit installations efficiently.

Key Features

• 50-amp rating for single-pole branch circuit protection
• Single-pole configuration for 120-volt circuit applications
• Package quantity of 10 units per package, suited for volume installations
• Plug-on design compatible with Square D QO-style loadcenters
• Thermal-magnetic trip mechanism for overload and short circuit protection

Compatibility

Designed as an OEM-style replacement and new-installation breaker for Square D QO-series loadcenters and panelboards. No additional specific compatible model numbers were provided in the product data.

Installation Notes

Installation must be performed by a qualified licensed electrician in accordance with NFPA 70 (NEC) requirements. The main breaker or utility disconnect must be shut off before working inside the panelboard. Verify the loadcenter bus bar accepts QO-style plug-on breakers before installation. Do not exceed the panel's maximum breaker count or total ampacity rating.