A-B 857-3C9CNM857 Motor Feeder Protection Relay, Comprehensive Industrial Control Protection
The Rockwell Automation 857-3C9CNM857 Motor Feeder Protection Relay is designed to safeguard motors and feeder circuits from overloads, short circuits, and other electrical faults, ensuring reliable operation in industrial environments.
Manufacturer:Rockwell Automation
Model:857-3C9CNM857
Type:Motor Feeder Protection Relay
Voltage Rating:Up to 600V
Current Rating:300A
Protection Features:Overload, Short Circuit, Ground Fault
Communication Interface:Modbus RTU
Operating Temperature Range:-40°C to +85°C
Certifications:CE, UL, CSA
The Allen Bradley 857-3C9CNM857 Motor Feeder Protection Relay is engineered for robust performance in harsh environments.
It features a high-strength housing built from corrosion-resistant materials that ensure longevity and durability.
The relay offers precise control and monitoring capabilities, allowing for immediate tripping actions under fault conditions to safeguard against overloads, short circuits, and other electrical hazards.
Its user-friendly design includes a clear display screen for easy operation and status checking, making it an indispensable component in industrial settings requiring meticulous motor and feeder protection.
The installation process is straightforward, with detailed instructions provided to facilitate quick setup and integration into existing systems.
Furthermore, its compact size makes it easy to install in confined spaces without compromising on functionality or protection level.












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