Westinghouse F-3050 U Molded Case Circuit Breaker

Description:

The Westinghouse F-3050 U Molded Case Circuit Breaker is used in industrial electrical distribution systems for reliable three-phase overcurrent protection. Commonly installed in panelboards, switchboards, motor control centers, and heavy-duty power distribution assemblies requiring stable fault interruption at 480V systems. Maintenance teams, OEMs, and electrical system integrators use this breaker for replacement, retrofit, and upgrade applications in existing industrial installations.

Applications:

The Westinghouse F-3050 U is used in manufacturing facilities, commercial buildings, HVAC systems, motor control applications, and industrial machinery where consistent 480V three-phase power distribution and protection are required. It is typically applied in protecting feeders, pumps, compressors, conveyors, and other continuous-duty electrical loads from overloads and short-circuit faults in industrial environments.

Technical Specifications:

• Manufacturer: Westinghouse / Cutler-Hammer
• Model / Part Number: F-3050 U
• Product Type: Molded Case Circuit Breaker (MCCB)
• Series: F Series
• Frame Type: F Frame
• Rated Current: 50A
• Number of Poles: 3-Pole
• Voltage Rating: 480 VAC (up to 600 VAC system rating)
• Phase: 3-Phase
• Interrupting Capacity: 14 kA @ 480 VAC
• Trip Unit Type: Thermal-Magnetic
• Trip Functions: Long-time and instantaneous protection
• Frequency Rating: 50/60 Hz
• Mounting Type: Bolt-on
• Connection Type: Line and load lug terminals
• Protection Type: Overload and short-circuit protection
• Application Type: Industrial and commercial power distribution systems
• Standards Compliance: UL Listed
• Operating Temperature: 40°C ambient rated operation

Common Replacements:

• Eaton FDB3050
• Cutler-Hammer FDB3050
• Westinghouse EHD3050