Westinghouse 1531172 Molded Case Circuit Breaker

Description:

The Westinghouse 1531172 is an AB DE-ION molded case circuit breaker designed for industrial and commercial power distribution systems. This breaker features a 3-pole configuration, a 40 Amp continuous current rating, and a maximum operating voltage of 600 VAC. Equipped with an auxiliary contact (AUX), it provides both circuit protection and remote status indication for control, monitoring, and automation systems. The breaker is commonly installed in switchgear, motor control centers, distribution panels, and industrial electrical equipment where reliable overload and short-circuit protection are required.

Applications:

The Westinghouse 1531172 circuit breaker is commonly used to protect three-phase feeder circuits, motor loads, industrial machinery, control panels, and power distribution equipment. The auxiliary contact allows integration with alarm systems, PLCs, remote monitoring systems, and control circuits for breaker position indication and status feedback. It is widely used in manufacturing facilities, utility systems, commercial buildings, and industrial process plants.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 1531172
• Product Type: Molded Case Circuit Breaker (MCCB)
• Series: AB DE-ION
• Frame Type: F-Frame
• Current Rating: 40 Amps
• Pole Configuration: 3-Pole
• Voltage Rating: 600 VAC
• Trip Type: Thermal-Magnetic
• Auxiliary Contact: Yes (AUX)
• Function: Overload and short-circuit protection with remote status indication
• Application: Industrial and commercial power distribution systems
• Mounting Type: Panelboard, switchgear, or MCC installation
• Operating Frequency: 50/60 Hz
• Intended Use: Feeder, branch circuit, and equipment protection

Common Replacements:

• Eaton FB3040L 40A 3-Pole Circuit Breaker
• Eaton Series C F-Frame 40A 3-Pole Breaker
• Westinghouse FB3040 Thermal-Magnetic Circuit Breaker