Reference Manual
Capacitor Bank Protect. Relay KSR1
Rev. 10
2018-09
18
5 Technical Data KSR1
Auxiliary voltage
40 – 250 V AC, 45 – 65 HZ / 40 – 300 V DC, 5 VA; max. fuse 6 A
Voltage measuring
0,1 – 20 V; burden 284 kOhm; vt-ratio from 1 – 350, with low pass filter
Continuous overload: 120 V
Short term overload: 500 V for ten seconds
Accuracy: 0.5 % from upper range value
Current measuring
15 mA – 5 A; burden 20 mOhm; ct-ratio from 1-4000, with low pass filter
Continuous overload: 25 A
Short term overload: 100 A for one second
Accuracy: 0.5 % from upper range value
Relay outputs
4 output relays, change over contact, potential-free, max fuse 6 A
Function:
Relay 1: Trip
Relay 2: Alarm
Relay 3: Adjustable: Alarm, trip or both
Relay 4: Status
Max. output rating AC: 1250 VA, max switching voltage: 440 V AC
Max. output rating DC (ohmic): 30 V / 5 A; 60 V / 1 A; 110 V / 0,5 A; 220 V / 0,3 A
Digital input
Blocking Alarm / Trip via digital input.
Interface
TTL, rear (optional accessories TTL-USB converter)
Ambient temperature
Operation: -20 °C – 70 °C, storage: -40 °C – 85 °C
Humidity
0 % - 95 %, without moisture condensation
Overvoltage class
II, pollution degree 3 (DIN VDE 0110, Teil 1 / IEC 60664-1)
Standards
DIN VDE 0110 part 1 (IEC 60664-1:1992)
VDE 0411 part 1 (DIN EN 61010-1 / IEC 61010-1:2001)
VDE 0843 part 20
(DIN EN 61326 / IEC 61326: 1997 + A1:1998 +A2: 2000)
Conformity and listing
CE
Terminals
screw-type, max. 2,5 mm
2
Casing
front: instrument casing plastic (UL94-VO), rear: metal
Protection class
Front: IP50, (IP54 by using a gasket), Rear: IP20
Weight
ca. 0,65 kg
Dimensions
144 x 144 x 58 mm (h x w x d), cutout 138
+0,5
x 138
+0,5
mm