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Monitoring of residual currents, type A to B+ – RCM 202-AB
Description
The two-channel residual current monitoring device meets the requirements of the DIN EN 62020 standard. A recurring insulation test can be omitted or at least limited. Typical applications are low-voltage main distribution boards (LVMDB) and subdistribution panels (SDP) in grounded systems (e.g. TN-S systems). The RCM 202-AB is a technical alternative usable across all industries when power interruptions due to a residual current circuit breaker (RCD) or insulation resistance measurement cannot be tolerated. Complete integration into the GridVis® Power Grid Monitoring software is possible. The device can be integrated directly via the RS-485 interface.It can be used as an RCM at any point, e.g. in direct current systems, for frequency converters, or in applications with increased fire protection requirements. The RCM 202-AB allows type B/type B+ monitoring with common passive residual current transformers. Type B measurement is also possible with separable transformers, making it an ideal solution for existing systems.
Residual currenttransformer
- Residual current measurement, up to 2 residual current transformers
- Measurement range, AC/DC 10 mA ... 20 A
Patented measuring method
- Type A, B, B+ measurement with passive residual current transformers
Standards-Compliant to IEC 62020
- Detection, evaluation and monitoring of residual current types A, B and B+
RCM analysis
- Evaluation of AC and DC
- Harmonic spectrum up to 2 kHz, Type B
- Mixed current up to 20 kHz, Type A, Type B+
Historical data
- Memory for measured values and extreme values with time stamp
On-site operation
- High resolution LCD display with intuitive operation
Peripherals
- 2 analog outputs
- 2 alarm outputs
- Compatible with RCM inputs of the UMG 96-RM-E & UMG 96-PA with RCM module
Communication
- RS485 interface (protocol: Modbus RTU)
- Compatible with all communication-enabled Janitza Modbus master devices
Address
Janitza electronics GmbH
Vor dem Polstück 6
35633 Lahnau
Germany
Telephone+49 6441 96420
Fax+49 6441 964230
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