monitor / residual current monitors (RCM)

Residual current monitor, 4–20 mA interface, Type B, 70 mm

Residual current monitor with integrated bushing transformer for continual reading of pulsating and smooth DC residual currents and sinusoidal AC residual currents.
Signals the transgression of the response threshold of 50% of the rated residual current by the integrated relay
Output of the instantaneous residual current via standardised 4-20 mA interface for optional indication and monitoring

Residual operating current characteristics: B
Tripping characteristic curve: NK
max. adjustable residual operating current I∆adj AC: 
Frequency range response residual current Type B: 0 Hz ... 100 kHz
voltage type of monitored circuit: AC/DC
Rated voltage Uem of circuit monitored AC: 0 V ... 690 V
Rated frequency of circuit monitored: 0 Hz ... 400 Hz
Control elements: test key

transformer, primary side:
Rated current: 300 A
Rated impulse withstand voltage: 8 kV

alarm output (relays):
1 CO
Rated voltage (AC): 30 V (27 V ... 33 V)
Rated current AC (typ.): 1 A 
Rated voltage (DC): 30 V (27 V ... 33 V)
Rated current DC (typ.): 1 A

4–20 mA interface (semiconductor): 

Operating voltage (DC): 24 V (21.6 V ... 26.4 V)

Housing type: wall-mounted housing
Installation type: Wall mounting
Protection class: IP20
Dimensions of transformer opening: W 134 mm × H 143 mm × D 104 mm
Inside diameter: 70 mm

Design requirements/Standards: DIN EN 62020, DIN EN 61000-4-3, DIN EN 61000-4-6, DIN IEC 381-1, ISA-50.1, VDE 0664-400

Factory: Doepke or similar
Item designation: DCTR B NK 070/0,30-I
Order number: 09344642
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