RCM410R-1 Residual current monitoring device

Single-channel AC and pulsed current sensitive residual current monitoring device for AC systems

The RCM410R AC and pulsed current sensitive residual current monitoring device is used for fault and residual current monitoring in earthed systems (TN/TT) in which a message should preferably be issued in the event of a fault, but no disconnection is permitted. It can also be used to monitor individual conductors, e.g. PE conductors, N-PE bridges or PE-PAS bridges. Two separately adjustable response values can be used to differentiate between pre-warning and main alarm (pre-warning = 50...100 % of the set differential response current IΔn).

Features and functions

- AC and pulse current sensitive residual current monitoring device type A according to IEC 62020

- RMS value measurement (r.m.s.)

- Up to 247 monitoring devices in the system

- Differential response current IΔn adjustable: 10 mA...30 A (42...70 Hz)

- Supply voltage DC 24 V

- LED band measured value display

- Adjustable response delay

- One alarm relay (changeover contact)

- Working/quiescent current and fault memory behavior selectable

- RS-485 with Modbus RTU

- Permanent measuring current transformer connection monitoring

Technical features:

- Measuring + control circuit (IC1) S1, S2, +, -, A, B

- Output circuit (IC2) 11, 14, 12

- Rated voltage 250 V

- Overvoltage category III

- Operating altitude 2000 m above sea level

- Rated impulse voltage: IC1/IC2 4 kV

- Rated insulation voltage: IC1/IC2 250 V

- Pollution degree 2

- Safe isolation (reinforced insulation) between:

- IC1/IC2 Overvoltage category III, 300 V

- Voltage test (routine test) according to IEC 61010-1:

- IC1/IC2 AC 2.2 kV

- Operating mode Continuous operation

- Mounting position vertical

- Protection class of built-in components (DIN EN 60529) IP30

- Protection class terminals (DIN EN 60529) IP20

- Housing material Polycarbonate

- Quick mounting on DIN rail IEC 60715

- Flammability class UL94 V-0