Westinghouse FB3125 circuit breaker, 125A, style 4975D71G45, 600VAC, 3 pole

Description:

The Westinghouse FB3125 Circuit Breaker Style 4975D71G45 125A 600VAC 3 Pole is a molded case circuit breaker used in industrial electrical distribution and branch circuit protection systems. Commonly installed in motor control centers, switchboards, industrial automation panels, and manufacturing equipment requiring high-capacity three-phase overcurrent protection. Maintenance teams, OEMs, and electrical integrators use this breaker for replacement, retrofit upgrades, and maintenance of existing industrial electrical infrastructure.

Applications:

The Westinghouse FB3125 circuit breaker is commonly used in industrial and commercial electrical systems where dependable branch circuit protection is required for high-amperage three-phase equipment and connected power systems. It is suitable for motor control systems, conveyor equipment, HVAC infrastructure, industrial processing machinery, automation systems, and electrical distribution panels operating on 600VAC power networks.

Technical Specifications:

• Brand: Westinghouse
• Part Number: FB3125
• Style Number: 4975D71G45
• Product Type: Molded Case Circuit Breaker
• Current Rating: 125 Amp
• Voltage Rating: 600 VAC
• Number of Poles: 3 Pole
• Phase Compatibility: 3 Phase
• Breaker Series: FB Frame
• Protection Type: Thermal Magnetic
• Application: Branch circuit and equipment protection
• Mounting Style: Panel or switchboard mounted
• Function: Overcurrent and short-circuit protection
• Industrial Use: Power distribution and motor control systems
• Frequency Rating: 50/60 Hz
• Typical Installation: MCCs, switchgear, industrial control panels

Common Replacements:

• Eaton FB3125
• Siemens HFB3125
• Square D FA34125