Siemens Argus 7SR21 - Table 1.5-1 Ordering Information - 7 SR21 Non-Directional Overcurrent

7SR210 & 7SR220 Description of Operation
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Table 1.5-1 Ordering Information – 7SR21 Non-Directional Overcurrent
Product description Variants Order No.
7 S R 2 1 0 - 1 A - 0 A 0
Protection Product Family
Overcurrent - Non Directional
1
Relay Type
0
Case, I/O and Fascia
1)
E6 case, 4 CT, 9 Binary Inputs, 8 Binary Outputs, 8 LEDs
2
E8 case, 4 CT, 19 Binary Inputs, 16 Binary Outputs, 16 LEDs
3
E8 case, 4 CT, 19 Binary Inputs, 16 Binary Outputs, 8 LEDs + 6 keys
4
E12 case, 4 CT, 39 Binary Inputs / 16 Binary Outputs, 32 LEDs
5
E12 case, 4 CT, 39 Binary Inputs / 16 Binary Outputs, 16 LEDs, 12 keys
6
Measuring input
1 A or 5 A, 50 Hz or 60 Hz
1
Auxiliary voltage
PSU Rated: 30 to 220V DC. Binary Input threshold 19V DC (Rated: 24-250V DC)
A
PSU Rated: 30 to 220V DC. Binary Input threshold 88V DC (Rated: 110-250V DC)
B
PSU Rated: 24-250V DC / 100-230V AC. Binary Input threshold 19V DC (Rated: 24-250V DC)
M
PSU Rated: 24-250V DC / 100-230V AC. Binary Input threshold 88V DC (Rated: 110-250V DC)
N
Spare
A
Communication Interface
Standard version - included in all models, USB front port, RS485 rear port
1
Standard version - plus additional rear F/O ST connectors (x2) and IRIG-B
2
Standard version - plus additional rear RS485 and IRIG-B
3
Standard version - plus additional rear RS232 and IRIG-B
4
Standard version - plus additional rear Electrical Ethernet RJ45 (x2)
7
7
Standard version - plus additional rear Optical Ethernet Duplex (x2)
8
7
Protocol
IEC 60870-5-103 and Modbus RTU (user selectable)
1
IEC 60870-5-103 and Modbus RTU and DNP 3.0 (user selectable)
2
IEC 60870-5-103 and Modbus RTU and DNP 3.0 (user selectable) and IEC61850
7-8 7
Spare
0
Protection Function Packages
Standard version - included in all models
C
37 Undercurrent
46BC Broken conductor/load unbalance
46NPS Negative phase sequence overcurrent
49 Thermal overload
50 Instantaneous phase fault overcurrent
50BF Circuit breaker fail
50G/50N
Instantaneous earth fault/SEF
50 AFD Arc Flash Detector
51 Time delayed phase fault overcurrent
51G/51N Time delayed earth fault/SEF
60CTS-I CT supervision
64H High impedance REF
74TC/CCS Trip & close circuit supervision
81HBL2 Inrush Detector
81HBL5 Overfluxing Detector
86
Lockout
Cold load pickup
Programmable logic
CB Control
Standard version - plus
D
79
Autoreclose
Additional Functionality
No additional functionality
A
Spare
0
Export Data
HS: 8536900
ECCN: N
AL: N