Westinghouse F-3070 Molded Case Circuit Breaker

Description:

The Westinghouse F-3070 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 systems requiring stable fault interruption at 480V. Maintenance teams, OEMs, and electrical integrators use this breaker for replacement, retrofit, and upgrade of existing industrial electrical infrastructure.

Applications:

The Westinghouse F-3070 is used in manufacturing facilities, commercial buildings, HVAC systems, motor control applications, and industrial machinery where consistent 480V three-phase power protection is required. It is typically applied in protecting feeders, pumps, compressors, conveyors, and other continuous-duty loads against overload and short-circuit conditions in industrial environments.

Technical Specifications:

• Manufacturer: Westinghouse / Cutler-Hammer
• Model / Part Number: F-3070
• Product Type: Molded Case Circuit Breaker (MCCB)
• Series: F Series
• Frame Type: F Frame
• Rated Current: 70A
• 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 FDB3070
• Cutler-Hammer FDB3070
• Westinghouse EHD3070