Description 

The Square D Q221150AC is a two-pole molded case circuit breaker designed to provide dependable overcurrent and short-circuit protection in low-voltage power distribution systems. Rated at 150 amps and 240 volts AC, this breaker uses thermal-magnetic trip technology to deliver long-time and instantaneous protection. It is engineered for single-phase applications requiring reliable circuit interruption.

Technical Specifications 

Information About Q221150AC

The Q221150AC is part of Square D’s Q2 series of molded case circuit breakers, developed for compact and efficient branch and feeder circuit protection. This breaker incorporates a thermal-magnetic trip unit that responds accurately to overload and fault conditions. Its two-pole configuration supports single-phase electrical systems operating at 120/240 VAC. Manufactured to meet UL standards, the breaker is intended for dependable performance in commercial and light industrial electrical installations.

Key Features:

• 150 Amp Current Rating: Designed to protect higher-capacity branch and feeder circuits.
• Two-Pole Configuration: Supports single-phase 120/240 VAC electrical systems.
• Thermal-Magnetic Protection: Combines long-time overload and instantaneous short-circuit response.
• 240V Voltage Rating: Suitable for low-voltage power distribution applications.
• 10 kA Interrupting Rating: Rated for fault protection at 240 VAC.
• UL Listed: Manufactured to recognized electrical safety standards.

The Q221150AC delivers the reliability and precision required for single-phase power distribution protection.