Allen-Bradley / Rockwell Automation Datasheets for Protective Relays and Monitoring Relays

Protective relays and monitoring relays detect or monitor for abnormal power system conditions.
Protective Relays and Monitoring Relays: Learn more

Product Name Notes
440R Back EMF Monitors, CU3 , 2 N.O. SafetyOutput, 1 N.C. Auxiliary Outputs, None/N/A, None , 110V AC , Automatic/Manual Reset , 250V AC, 4A , 24V DC, 3A ,...
440R Back EMF Monitors, CU3 , 2 N.O. SafetyOutput, 1 N.C. Auxiliary Outputs, None/N/A, None , 230V AC , Automatic/Manual Reset , 250V AC, 4A , 24V DC, 3A ,...
440R Back EMF Monitors, CU3 , 2 N.O. SafetyOutput, 1 N.C. Auxiliary Outputs, None/N/A, None , 24V DC , Automatic/Manual Reset , 250V AC, 5A , 24V DC, 3A ,...
440R Single Function Safety Relays, 1 N.C. 1 N.C.,3 N.O., , 24V DC , Fixed,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, 1 N.C. or 2 N.C. or Light Curtain 1 N.C.,5 N.O, , 24V AC/DC , Fixed,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, 1 N.C.,3 N.O., , 115V AC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, 1 N.C.,3 N.O., , 115V AC , Removable,Monitored Manual Reset
440R Single Function Safety Relays, 1 N.C.,3 N.O., , 230V AC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, 1 N.C.,3 N.O., , 230V AC , Removable,Monitored Manual Reset
440R Single Function Safety Relays, 1 N.C.,3 N.O., , 24V DC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, 1 N.C.,3 N.O., , 24V DC , Removable,Automatic/Manual Reset
440R Single Function Safety Relays, 1 N.C.,3 N.O., , 24V DC , Removable,Monitored Manual Reset
440R Single Function Safety Relays, 2 N.C., 2 PNP Solid State,3 N.O., , 115V AC , Removable,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, 2 N.C., 2 PNP Solid State,3 N.O., , 230V AC , Removable,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, 2 N.C., 2 PNP Solid State,3 N.O., , 24V DC , Removable,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, 4 N.C., 2 PNP Solid State,7 N.O., , 115V AC , Removable,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, 4 N.C., 2 PNP Solid State,7 N.O., , 230V AC , Removable,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, 4 N.C., 2 PNP Solid State,7 N.O., , 24V DC , Removable,Configured Automatic/Manual or Manual Monitored Reset
440R Single Function Safety Relays, Dual Channel N/A,2 N.O., , 115V AC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, Dual Channel N/A,2 N.O., , 230V AC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, Dual Channel N/A,2 N.O., , 24V DC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, N/A,2 N.O., , 115V AC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, N/A,2 N.O., , 230V AC , Fixed,Monitored Manual Reset
440R Single Function Safety Relays, N/A,2 N.O., , 24V DC , Fixed,Monitored Manual Reset
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has Glass/Glass dual serial fiber interface for 857-RAD (857-VCMFIBRE GG) COM Port 2 has Built in RJ45 10-Mbps Ethernet...
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has Glass/Glass dual serial fiber interface for 857-RAD (857-VCMFIBRE GG) COM Port 2 has RS-485 interface (2-wire, 857-VCM 485-2)...
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has RS-485 interface (4-wire, VCM 485-4)
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has RTD glass fiber interface for 857-RAA (857-VCMRTD) has COM Port 2 has Built in RJ45 10-Mbps Ethernet Interface...
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has RTD glass fiber interface for 857-RAA (857-VCMRTD) has COM Port 2 has RS-485 interface (2-wire, 857-VCM 485-2)
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has TTL/RS-232 (VCM TTL) COM Port 2 has Built in RJ45 10-Mbps Ethernet Interface inc. IEC 61850
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has TTL/RS-232 (VCM TTL) COM Port 2 has Built in RJ45 10-Mbps Ethernet Interface
Bulletin 857 Motor/Feeder Protection Relay, 40...265Vac/dc Supply Voltage, COM Port 1 has TTL/RS-232 (VCM TTL) COM Port 2 has RS-485 interface (2-wire, 857-VCM 485-2)
Bulletin 865 Differential Protection Relay With Modbus Support
Bulletin 865 Differential Protection Relay
Guardmaster Compatibility Input Safety Relay (CI), 1 Dual Channel Universal Input, 1 N.C. Auxiliary Output
Guardmaster Dual Input Safety Relay (DI), 2 Dual Channel Universal Inputs, 1 N.C. Solid State Auxiliary Output
Guardmaster Dual Input SS Output Safety Relay (DIS), 2 Dual Channel Universal Inputs, 1 N.C. Solid State Auxiliary Output
Guardmaster Expansion Module Safety Relay (EM), Expansion Module (Single Wire Safe is only input), 1 N.C. Solid State Auxiliary Output
Guardmaster Guard Locking safety relay with Time Delay (GLT), 1 Dual Channel Input (time delayed outputs - GLT), 1 N.O., PNP, 50mA, non-safety Auxiliary Output
Guardmaster Guardlocking Proximity Inputs Safety Relay (GLP), 1 Dual Channel Input, 2 PNP Proxes, 1 N.C. Solid State Auxiliary Output
Guardmaster Single Input Safety Relay (SI), 1 Dual Channel Universal Input, 1 N.C. Solid State Auxiliary Output
Modular Monitoring Safety Relay - Inputs, N/A Safety Outputs, 2 N.O. Solid State Auxiliary Outputs
Modular Monitoring Safety Relay - N/A Inputs, 3 N.O. Safety Outputs, 1 N.C. Auxiliary Outputs
Modular Monitoring Safety Relay - N/A Inputs, N/A Safety Outputs, 2 N.O. Solid State Auxiliary Outputs
Modular Monitoring Safety Relay - N/A Inputs, N/A Safety Outputs, 3 N.O. Solid State Auxiliary Outputs
Monitoring Safety Relays w/ Delayed Outputs -, Inputs, Safety Outputs, N/A Auxiliary Outputs,
Single-Phase Current Monitoring Relay, 1...10A AC/DC, 115/230V AC
Single-Phase Current Monitoring Relay, 1...10A AC/DC, 24/48V AC/DC
Specialty Safety Relay, Speed Monitoring -, 5 x 1 N.C., 2.N.C., LC, 1 N.O. + 1 N.C. Inputs, 4 N.O. Solid State Auxiliary Outputs, 24V DC
Thermistor Monitoring Relay, , 115V AC
Thermistor Monitoring Relay, , 230V AC
Thermistor Monitoring Relay, , 24/48V AC/DC
Three-Phase Voltage Monitoring Relay, 110...115V AC (Type V3),
Three-Phase Voltage Monitoring Relay, 208...240V AC (Type V3),
Three-Phase Voltage Monitoring Relay, 380...415V AC (Type V3),
Three-Phase Voltage Monitoring Relay, 440...480V AC (Type V3),
Three-Phase Voltage Monitoring Relay, 600...690V AC (Type V3),