7SG11 Documentation Set
©2013 Siemens Protection Devices Limited
Page
10 of 16
Product description
Variants
Order No.
Directional O/C relay
7 S G 1 1 2
-
-
A 0
Ideal for directional overcurrent and earth
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fault protection of solid ring systems
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utilising the fully independent
Number of elements
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bi-directional feature, includes additional Four pole relay (numeric VT)
5
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voltage protection and energy metering.
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Auxiliary supply/binary input voltage
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24/30/48 V DC auxiliary, 30 V binary input
0
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110/220 V DC auxiliary, 30 V binary input
1
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24/30/48 V DC auxiliary, 48 V binary input
2
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110/220 V DC auxiliary, 48 V binary input
1
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3
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110/220 V DC auxiliary, 110 V low burden binary input
4
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110/220 V DC auxiliary, 220 V low burden binary input
5
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Type of elements
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3 pole phase-fault directional and earth-fault directional
R
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3 pole phase-fault directional and sensitive/restricted
earth fault (SEF/REF) or
2 pole phase-fault directional and earth fault directional and
sensitive/restricted earth-fault (SEF/REF)
S
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Nominal current
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1/5 A and 63/110 V AC
D
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I/O range
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5 Binary Inputs / 11 Binary Outputs (incl. 3 changeover)
1
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9 Binary Inputs / 7 Binary Outputs (incl. 3 changeover)
2
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Communication interface
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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
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Directional measurement characteristic angle (CA)
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-90º to +90º in steps of 1º
6
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Housing size
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Case size E8 (4U high)
E
1
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High burden 110V & 220V binary inputs compliant with ESI48-4 ESI 1 available via external dropper resistors with 48V binary input version
for 5 binary inputs and 110 V application, order resistor box VCE:2512H10065 in addition
for 9 binary inputs and 110 V application, order resistor box VCE:2512H10064 in addition
for 5 binary inputs and 220 V application, order resistor box VCE:2512H10067 in addition
for 9 binary inputs and 220 V application, order two resistor boxes VCE:2512H10067 in addition
Refer to website for application note about ESI48-4 compliance
Ordering Information – 7SG1125 Argus 2