ABB REF611 Feature-Packed Feeder Protection Relay Brand New Intrinsic Safety Applications High Efficiency: Up to 90%

High Efficiency: Up to 90%

Output Voltage: 20…253 V AC

Modbus Master/Slave Support: Seamlessly acts as either a Modbus Master or Slave

and proximity switches for diverse signal input needs

Control Network Protocol: MMS (Manufacturing Message Service) and IAC (Inter Application Communication)

ABB REF611 Feature-Packed Feeder Protection Relay Brand New Intrinsic Safety Applications High Efficiency: Up to 90%Overview The ABB REF611 is a dedicated feeder protection relay designed to safeguard, control, measure, and monitor utility substations and industrial power systems. It offers a comprehensive suite of functionalities, ensuring reliable operation of your electrical network. Technical Specifications Voltage rating: 110 300 V Current rating: 5 6000 A Frequency rating: 50 60 Hz Accuracy class: 0. 2S Operating temperature range: 40 to +85 C Storage