Westinghouse FDB3050NSNBC7 Molded Case Circuit Breaker

Description:

The Westinghouse FDB3050 600VAC 50A 3P NSNBC7 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 dependable medium-amperage three-phase overcurrent protection. Maintenance teams, OEMs, and electrical integrators use this breaker for replacement, retrofit upgrades, spare inventory, and maintenance of existing industrial electrical infrastructure.

Applications:

The Westinghouse FDB3050 circuit breaker is commonly used in industrial and commercial electrical systems where reliable branch circuit protection is required for medium-amperage three-phase equipment and connected power systems. It is suitable for motor control systems, conveyor equipment, HVAC infrastructure, automation machinery, industrial processing systems, and electrical distribution panels operating on 600VAC power networks.

Technical Specifications:

• Brand: Westinghouse
• Part Number: FDB3050
• Product Type: Molded Case Circuit Breaker
• Current Rating: 50 Amp
• Voltage Rating: 600VAC
• Number of Poles: 3 Pole
• Phase Compatibility: 3 Phase
• Breaker Series: FDB Frame
• Protection Type: Thermal Magnetic
• Application: Branch circuit and equipment protection
• Function: Overcurrent and short-circuit protection
• Mounting Style: Panel or switchboard mounted
• Industrial Use: Power distribution and motor control systems
• Frequency Rating: 50/60 Hz
• Condition Notes: NSNBC7 condition code
• Typical Installation: MCCs, switchgear, industrial control panels

Common Replacements:

• Eaton FDB3050
• Siemens HFD3050
• Square D FA3450