Bender RCMA420-D-1
Bender RCMA420-D-1 multi-channel AC/DC sensitive residual current monitor (Type B) for early fault detection in TN/TT systems. Features Modbus RTU, LC display, and expandable channels to ensure maximum electrical safety and system availability.
Bender RCMA420-D-1
The Bender RCMA420-D-1 is a state-of-the-art, multi-channel residual current monitor designed for AC, pulsed DC, and smooth DC sensitive monitoring (Type B) in earthed power systems (TN and TT systems). It provides early detection of insulation faults and hazardous residual currents before they lead to system downtime or safety risks. Featuring an integrated LC display, two separately adjustable response values, and an RS-485 interface for communication via Modbus RTU, the RCMA420-D-1 is ideal for demanding applications in data centers, industrial facilities, and commercial buildings where electrical safety and operational continuity are paramount. The system is expandable, allowing for the monitoring of up to 12 circuits with additional measuring current transformers and RCM…S modules.
Technical Specifications:
Monitoring Type: AC/DC sensitive residual current monitoring (Type B) for earthed systems (TN/TT)
Supply Voltage (Us): AC 90…264 V (50…60 Hz); DC 90…286 V
Frequency Range: DC, 15…2000 Hz
Response Value Range (IΔn): 10 mA…10 A (in two ranges)
Measuring Channels: 1 internal, expandable up to 12 channels with external modules
Interface: RS-485 (BMS protocol / Modbus RTU)
Operating Temperature: -25°C to +55°C (-13°F to +131°F)
| Brand | BENDER |
|---|---|
| Model | RCMA420-D-1 |
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