Siemens Protection Devices Limited 15
Product description Variants Order No.
Directional O/C relay 7
Ideal for directional overcurrent
and earth fault protection of solid
ring systems utilising the fully Number of elements
independent bi-directional Single pole relay
Auxiliary supply/binary input voltage
24/30/48 V DC auxiliary, 30 V binary input
110/220 V DC auxiliary, 30 V binary input
24/30/48 V DC auxiliary, 48 V binary input
110/220 V DC auxiliary, 48 V binary input
1
)
110/220 V DC auxiliary, 110 V low burden binary input
110/220 V DC auxiliary, 220 V low burden binary input
Single pole earth-fault directional
Single pole earth-fault directional
Single pole sensitive/restricted directional earth-fault (SEF/REF) H
Single pole sensitive/restricted directional earth-fault (SEF/REF) H
1 Binary Input / 7 Binary Outputs (incl. 3 changeover)
Fibre optic (ST-connector) / IEC 60870-5-103 or Modbus RTU 1
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RS485 interface / IEC 60870-5-103 or Modbus RTU 2 | |
Directional measurement characteristic angle (CA)
0º, -15º, -45º, -65º for earth faults
0º, -15º, -45º, -90º for earth faults
1
) High burden 110V & 220V binary inputs compliant with ESI48-4 ESI 1 available via external dropper resistors with 48V binary input version
for 1 binary input and 110 V application, order resistor box VCE:2512H10066 in addition
for 1 binary input and 220 V application, order resistor box VCE:2512H10068 in addition
Refer to website for application note about ESI48-4 compliance
Ordering Information – 7SG1121 Argus