140M-C-ASA20

Overview of Allen Bradley 140M-C-ASA20

The Allen Bradley 140M-C-ASA20 is a right-side mounted auxiliary contact block designed for use with 140M motor protection circuit breakers (MPCBs). This accessory provides 2 normally open (NO) contacts that enhance the control and signaling functionality of the 140M series circuit breakers. It is ideal for monitoring the status of the circuit breaker, enabling integration with control circuits for improved operational feedback. The compact and durable design ensures reliable performance in various industrial environments where motor protection and control are critical. Compatible with multiple frame sizes in the 140M family, this auxiliary contact block simplifies installation while maintaining the rugged standards typical of Allen Bradley products.

Key Features of Allen Bradley 140M-C-ASA20

• Right-hand side mount for easy integration with 140M series MPCBs
• 2 Normally Open (NO) contacts with zero Normally Closed (NC) contacts
• Compact, space-saving design with a 9 mm width
• Rated operational current of 6 A at AC-15, 24 V and AC-15, 120 V for various control voltages
• Reliable auxiliary contact indicating circuit breaker status
• Compatible with Allen Bradley 140M-C, -D, and -F frame motor protection circuit breakers
• Facilitates motor control and signaling in non-severe duty applications
• Durable construction to withstand industrial operating conditions
• Simple mounting and wiring for quick installation and maintenance

Technical Specs of 140M-C-ASA20

Specification	Details
Contact Type	2 Normally Open (NO), 0 Normally Closed (NC)
Mounting Position	Right side mounted
Width	9 mm
Rated Operational Current (AC-15)	6 A at 24 V, 6 A at 120 V
Compatible Circuit Breakers	Allen Bradley 140M-C, -D, -F frames

Applications / Use Case

The Allen Bradley 140M-C-ASA20 auxiliary contact block is widely used in industrial motor control panels where precise monitoring of motor protection circuit breakers is necessary. It provides clear electrical signals indicating the status of a circuit breaker—whether it is open or closed—enabling integration with supervisory control and data acquisition (SCADA) systems or programmable logic controllers (PLCs). This is essential in manufacturing plants, processing facilities, and HVAC systems, where automated motor safety and control are required. The accessory supports maintenance operations by signaling trips and fault conditions for timely response, minimizing downtime. It is especially suited for applications in non-severe duty environments requiring robust and reliable auxiliary contacts to enhance motor control strategies.

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