1MRK 502 001-UEN
Page 10
RARIC
Shaft current protection
Table 1: Basic data
Current setting range (RXIK) 0.5-2 mA, 50-60 Hz
Operate shaft current at setting
0.5 mA and transformer diameters
160-3000 mm
Version 1: 0.3-0.8 A, 50-60 Hz
Version 2: 0.3-0.8 A, 150 Hz
Reset ratio > 99%
Filter characteristic, version 2 The filter rejects the fundamental by 70:1
Input impedance 80 ohm resistive
Overload capacity
shaft diameter < 700 mm
shaft diameter 700-1600 mm
shaft diameter 1610-2500 mm
shaft diameter > 2500 mm
50 A shaft current continuously and 200 A in 1 s
65 A shaft current continuously and 250 A in 1 s
75 A shaft current continuously and 300 A in 1 s
100 A shaft current continuously and 400 A in 1 s
Auxiliary rated voltage 100, 110 and 220 V, 50-60 Hz or 24-250 V DC
Power consumption from aux.voltage
AC supply
DC supply
Approx. 2 VA before and 8 VA after operation
Approx. 3 W before and 7 W after operation
Time setting range (RXKL) 30 ms-99 h
Permissible ambient temperature -5 to +55 °C
Permissible range auxiliary voltage
supply
80-110 % of rated voltage
Table 2: Electromagnetic compability tests
Power frequency test (SS 436 15 03) 0,5 kV, class PL4
Fast transient test (SS 436 15 03) 4-8 kV, class PL4
1 MHz burst test (IEC 60255-22-1) 2.5 kV, class III
Table 3: Insulating tests (IEC 60255-5)
Dielectric test 2 kV, 50 Hz, 1 min
Impulse voltage test 5.0 kV, 1.2/50 µs, 0.5 J
Table 4: Contact data
Trip circuits (RXME 18)
Max system voltage within a
contact set 450 V dc, 400 V ac
Current-carrying capacity for already
closed contact 55 A for 200 ms
30 A for 1 s
6 A continuously
Making and conducting capacity,
L/R < 10 ms 30 A for 200 ms
20 A for 1 s
Breaking capacity,
max. 250 Vac, PF > 0.1 20 A
Breaking capacity, dc, L/R < 40 ms 20 A at 24 V
18 A at 48 V
3 A at 110 V
1 A at 220 V
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