A27R

Features:

The A27R relay is designed for monitoring and protection of station batteries and battery chargers, following RDSO Specifications TI-SPC-PSI-PROTCT-7101.
Key protections include DC under and over-voltage, AC under and over-voltage.
Includes programmable inputs/outputs and self-supervision with event, fault, and disturbance recording.
Supports SCADA communication, IEC 60870-5-103 & IEC 61850 protocols, with Ethernet/RS485 ports.
Features a user-friendly interface with a backlit display and password protection.

A21R