The manual provides installation, wiring, programming, and operation instructions for the Acrel ARCM200BL electrical fire monitoring detector.
The ARCM200BL is an electrical fire monitoring detector designed for low‑voltage TT and TN systems (≤0.4 kV). It monitors residual current and temperature to prevent electrical fires and complies with GB14287.2‑2014 and GB14287.3‑2014 standards.
The document covers product overview, technical parameters, installation and wiring, programming, function applications, communication protocol (RS485 / MODBUS‑RTU), typical wiring diagrams, and safety precautions. This manual is written in Chinese.
| Input network | Three‑phase TT, TNS, TN‑C‑S or TNC (local TT) systems |
|---|---|
| Frequency | 50 Hz |
| Residual current measurement range | 10 mA ~ 3000 mA |
| Temperature monitoring range | 0 °C ~ 120 °C (NTC thermistor) |
| Communication interface | RS485, MODBUS‑RTU |
| Alarm method | Audible and visual (sound‑light) alarm |
| Event record capacity | 20 alarm, 20 fault, 20 switch records |
| Power supply | AC/DC 85 V ~ 270 V, ≤5 W |
| Operating temperature range | -10 °C ~ +55 °C |
It operates from an AC or DC supply of 85 V to 270 V with a power consumption of 5 W or less.
The detector can store up to 20 alarm records, 20 fault records and 20 switch records.
The device provides an RS485 interface that uses the MODBUS‑RTU protocol.
It is installed as an embedded unit with an extrusion‑type fixing method.