Inputs: 4xI
Protection Functions: Overall differential protection (87/50G), Restricted Earth Fault (87REF), Earth Fault (50G)
Supervision Functions: CT Supervision (CT50), Fault Clearance Monitor (87/50BF)
Monitoring Functions: Instrumentation
Additional Functions: IEC 61850 option, Eight setting groups, Password protection, Self-monitoring, Fault/event/waveform records
Housings: E6 or E8
Applications: Distribution networks, industrial plants, and high-impedance protection systems
Type: Numerical overcurrent and earth fault relay
Models: 7SR1002, 7SR1003, 7SR1004, 7SR1005
Protection functions: Overcurrent (50/51), Earth Fault (50N/51N), Thermal Overload (49), Broken Conductor (46BC), Negative Phase Sequence (46NPS), Sensitive Earth Fault (50SEF/51SEF), CB Fail (50BF), Cold Load Pickup (51C), etc.
Supervision: Trip Circuit Supervision (74TC), Total Harmonic Distortion (81THD)
Control: Lockout (86), CB Control
Power Supply: Universal AC/DC supply
CT Input: 1A / 5A site-selectable
Communication: USB (front), RS485 MODBUS RTU / IEC 103 (rear)
I/O: Up to 6 Digital Inputs and 6 Digital Outputs
Case: Size 4, 4U high, non-draw-out
Applications: Distribution and industrial protection, motor and voltage-based protection
Standard: IEC 60255 compliant
Power range: 0.25 to 22 kW
Voltage range: 200 to 480 V
Enclosure: IP20
EMC filter: C2, C3, C4 categories
Sensorless vector control
Adaptive programming
Energy optimization function
Modbus RTU standard interface
Bluetooth optional control panel
Compact size for tight enclosures
Supports heavy and light loads
Safe Torque Off (STO) standard
