Industrial FDB4125 Molded Case Circuit Breaker

Description:

The Westinghouse FDB4125 Industrial Circuit Breaker 125 Amp 4 Pole 600VAC is a molded case circuit breaker used in industrial electrical distribution and multi-phase branch circuit protection systems. Commonly installed in switchboards, motor control centers, industrial automation panels, and manufacturing equipment requiring high-capacity four-pole 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 FDB4125 industrial circuit breaker is commonly used in industrial and commercial electrical systems where reliable four-pole branch circuit protection is required for high-amperage distribution equipment and connected power systems. It is suitable for motor control systems, HVAC infrastructure, industrial processing machinery, automation systems, power distribution assemblies, and switchgear installations operating on 600VAC electrical networks.

Technical Specifications:

• Brand: Westinghouse
• Part Number: FDB4125
• Product Type: Molded Case Circuit Breaker
• Current Rating: 125 Amp
• Voltage Rating: 600VAC
• Number of Poles: 4 Pole
• Breaker Series: FDB Frame
• Phase Compatibility: Three-phase systems with neutral protection
• 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 machinery protection
• Frequency Rating: 50/60 Hz
• Typical Installation: Switchboards, MCCs, industrial control panels

Common Replacements:

• Eaton FDB4125
• Siemens HFD4125
• Square D FA36125