Bender RCMB300 Series - 10 Technical Data; Tabular Data

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RCMB300-series_D00372_01_M_XXEN/06.2019
10. Technical data
10.1 Tabular data
Insulation coordination acc. to IEC 60664-1/IEC 60664-3
Definitions
Measuring circuit (IC1) .......................Primary conductors routed through the current transformer
Secondary (IC2) .............................................. terminal block 1 (24 V, GND, T/R, GND, A, B, X1, X2)
Control circuit 1 (IC3) .............................................................................Terminal block 1 (11,12,14)
Control circuit 2 (IC4) .............................................................................Terminal block 2 (21,22,24)
Rated insulation voltage............................................................................................................ 800 V
Overvoltage category.........................................................................................................................III
Area of application .................................................................................................. ≤ 2000 m AMSL
Rated impulse voltage
IC1((IC2-IC4) .................................................................................................................................8 kV
IC2/(IC3-IC4) .................................................................................................................................4 kV
IC3/IC4 ...........................................................................................................................................4 kV
Rated insulation voltage
IC1/(IC2-IC4) .............................................................................................................................. 800 V
IC2/(IC3-IC4) .............................................................................................................................. 250 V
IC3/IC4 ........................................................................................................................................ 250 V
Pollution degree........................................................................................................................................ 2
Safe isolation (reinforced insulation) between
IC2/(IC3-IC4) .............................................................................................................................. 300 V
Basic insulation between:
IC1/(I2-IC4) ............................................................................................................................... 800 V
IC3/IC4 ........................................................................................................................................ 300 V
Voltage tests (routine test) acc. to IEC 61010-1
IC2/(IC3-IC4)........................................................................................................................ AC 2.2 kV
IC3/IC4.................................................................................................................................. AC 2.2 kV
Supply voltage
Supply voltage U
S
..........................................................................................................................DC 24 V
Operating range of U
S
.....................................................................................................................±20 %
Ripple U
S
...........................................................................................................................................≤ 1 %
Power consumption.......................................................................................................................≤ 2.5 W
Inrush current ...................................................................................................................... 1.7 A for 1 ms