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Ordering Information – 7SR11 Argus Non-Directional Overcurrent
Product description
Nondirectional O/C Relay
Overcurrent – Non Directional
Case I/O and Fascia
E4 case, 1 CT, 3 Binary Inputs / 5 Binary Outputs, 10 LEDs
E4 case, 4 CT, 3 Binary Inputs / 5 Binary Outputs, 10 LEDs
E4 case, 4 CT, 6 Binary Inputs / 8 Binary Outputs, 10 LEDs
Measuring Input
1/5 A, 50/60Hz
1/5 A, 50/60Hz with SEF Input
Auxiliary voltage
80 to 250V DC, binary input threshold 19V DC
80 to 250V DC, binary input threshold 88V DC
24 to 60V DC, binary input threshold 19V DC
Communication Interface
Protocol
Relay Cover
Standard Version – No Push Buttons
Push Buttons – Down and Right Arrows
Protection Function Packages
Standard version – Included in all models
37
46BC
46NPS
49
50
50BF
50G/50N
50SEF
51
51G/51N
51SEF
60CTS
64H
74T/CC
81HBL2
51c
Standard version – plus
79
Additional Functionality
No Additional Functionality
4CT is configured as 3PF + EF
1)
4CT is configured as 3PF + SEF/REF
2)
Functions only available in 4CT relay
3)
4)
Not available in SEF model
Siemens Protection Devices Limited
Variants
1)
2)
Standard version – included in all models, USB front port RS485 rear port
IEC 60870-5-103 and Modbus RTU and DNP3 (user selectable setting)
Undercurrent
Broken conductor/load unbalance
3)
Negative phase sequence overcurrent
3)
Thermal overload
3)
Instantaneous phase fault overcurrent
3)
Circuit breaker fail
3)
Instantaneous earth fault
Instantaneous sensitive earth fault
2)
Time delayed phase fault overcurrent
3)
Time delayed earth fault/SEF
Time delayed sensitive earth fault
2)
CT Supervision
3)
High Impedance REF
Trip & Close circuit supervision
2
Harmonic Block/Inrush Restraint
4)
nd
Cold load pickup
3)
Programmable logic
Autoreclose
Order No.
□
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7 S R 1 1 0
-
A 1 2 -
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J
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A 0
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D
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A
18
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