ABB RED670 1MRK002311-AAR02 Digital protective relay

ABB RED670 1MRK002311-AAR02 Digital protective relay

RED670 is a digital protective relay manufactured by ABB for the protection, control and monitoring of power systems.

Electrical parameter
Rated current: up to 630A.
Operating voltage range: 24V DC to 230V AC.
Response time: less than 10ms.
Communication interface: Support Modbus, Profibus DP, Ethernet/IP and other communication protocols, can easily communicate with the monitoring system, SCADA system or other automation equipment to achieve remote monitoring and data exchange.

Protection function
Phase current differential protection: High sensitivity to phase faults, accurate detection of high-resistance faults, reliable phase selection, suitable for up to five-wire terminals.
Direction protection: using logic such as CT saturation detection and TA line break blocking to prevent misoperation. After logic confirmation, the relay can be driven to send out circuit breaker trip signal, and lock and re-close as required.
Other protection: May also include over current, over load, short circuit, ground failure, undervoltage, overvoltage and other protection functions to ensure the safe operation of power equipment and systems.

Physical characteristics
Weight: About 2.5kg.
Size: 150mm×100mm×50mm.