Siemens Reyrolle 7SR1004 Argus Numerical Overcurrent and Earth Fault Relay
The Siemens Reyrolle 7SR1004 is a numerical overcurrent and earth fault protection relay featuring both current and voltage measurement inputs. Designed for distribution and industrial applications, it provides reliable protection, monitoring, and control. Built with the latest hardware technology, the 7SR1004 offers flexible configuration, multiple protection functions, and communication interfaces suitable for modern networks
Technical Specifications
Model: 7SR1004 (Argus series – voltage & current based)
Current Inputs: 4
Voltage Inputs: 3
Binary Inputs: 9
Binary Outputs: 6
LEDs: 10
Auxiliary Voltage: 60–240 V AC/DC
CT Input: 1A / 5A (site-selectable)
Communication: Front USB port, Rear RS485 (IEC 60870-5-103 / Modbus RTU / DNP 3.0)
Case Type: 4U high, size 4, non-draw-out
Protection Elements: 4 independent overcurrent elements (50-1 to 50-4) with directional control and transient-free operation
Frequency Protection: 4 under/over frequency elements with Ph-Ph or Ph-N voltage modes
Protection Functions: 46BC, 46NPS, 49, 50, 50N/G, 51, 51N/G, 51C, 50BF, 51SEF, 81HBL2, 50SEF
Supervision: Trip Circuit (74TC), Total Harmonic Distortion (81THD)
Control: Lockout (86), CB Control
Compliance: IEC 60255
Current Inputs: 4
Voltage Inputs: 3
Binary Inputs: 9
Binary Outputs: 6
LEDs: 10
Auxiliary Voltage: 60–240 V AC/DC
CT Input: 1A / 5A (site-selectable)
Communication: Front USB port, Rear RS485 (IEC 60870-5-103 / Modbus RTU / DNP 3.0)
Case Type: 4U high, size 4, non-draw-out
Protection Elements: 4 independent overcurrent elements (50-1 to 50-4) with directional control and transient-free operation
Frequency Protection: 4 under/over frequency elements with Ph-Ph or Ph-N voltage modes
Protection Functions: 46BC, 46NPS, 49, 50, 50N/G, 51, 51N/G, 51C, 50BF, 51SEF, 81HBL2, 50SEF
Supervision: Trip Circuit (74TC), Total Harmonic Distortion (81THD)
Control: Lockout (86), CB Control
Compliance: IEC 60255
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