Westinghouse Electric Corporation FDB3150 Circuit Breaker

Description:

The Westinghouse FDB3150 150 Amp 600 Volt 3 Pole Circuit Breaker with Auxiliary Switch is a molded case circuit breaker used in industrial electrical distribution and control monitoring systems. Commonly installed in motor control centers, switchboards, industrial automation panels, and manufacturing equipment requiring high-capacity three-phase overcurrent protection with auxiliary signaling capability. Maintenance teams, OEMs, and electrical integrators use this breaker for replacement, retrofit upgrades, remote status indication, and maintenance of existing industrial electrical infrastructure.

Applications:

The Westinghouse FDB3150 circuit breaker with auxiliary switch is commonly used in industrial and commercial electrical systems where branch circuit protection and breaker status monitoring are required for connected high-amperage three-phase equipment. It is suitable for motor control systems, conveyor equipment, HVAC infrastructure, industrial processing machinery, automation systems, and electrical distribution panels operating on 600-volt power networks with integrated control and signaling functions.

Technical Specifications:

• Brand: Westinghouse
• Part Number: FDB3150
• Product Type: Molded Case Circuit Breaker with Auxiliary Switch
• Current Rating: 150 Amp
• Voltage Rating: 600 Volt
• Number of Poles: 3 Pole
• Phase Compatibility: 3 Phase
• Breaker Series: FDB Frame
• Accessory Type: Auxiliary Switch
• Auxiliary Function: Breaker status indication and remote signaling
• Protection Type: Thermal Magnetic
• Application: Branch circuit and equipment protection
• Mounting Style: Panel or switchboard mounted
• Function: Overcurrent, short-circuit protection, and status monitoring
• Industrial Use: Power distribution and motor control systems
• Frequency Rating: 50/60 Hz
• Typical Installation: MCCs, switchgear, industrial control panels

Common Replacements:

• Eaton FDB3150
• Siemens HFD3150
• Square D FA34150