ALM-CH16 fault annunciators are designed for cabinet panel mounting, offering a compact structure and efficient wiring. Suitable for power control and monitoring systems, they use a high-reliability MCU to monitor external signals in real time. When a fault occurs, the corresponding panel indicator illuminates, the buzzer sounds, and the alarm relay responds promptly.
The device supports audible alarm mute, alarm reset, and indicator testing via front-panel buttons. It also supports RS485 communication using the Modbus RTU protocol and records up to 300 sequence of events (SOE).
ALM-CH16 fault annunciators are designed for cabinet panel mounting, offering a compact structure and efficient wiring. Suitable for power control and monitoring systems, they use a high-reliability MCU to monitor external signals in real time. When a fault occurs, the corresponding panel indicator illuminates, the buzzer sounds, and the alarm relay responds promptly.
The device supports audible alarm mute, alarm reset, and indicator testing via front-panel buttons. It also supports RS485 communication using the Modbus RTU protocol and records up to 300 sequence of events (SOE).
| Parameter | Value |
| Operating voltage | 85-265VAC/DC (±10~15%), optional 24VDC |
| Rated power | ≤8W |
| Fault signal inputs | 16 channels,
Active dry contact with 15Vdc feed, no need extra power supply. |
| Response time | ≤100ms |
| Flashing frequency | >1Hz |
| Relay outputs | 3 channels
Load capacity: 5A@250VAC, 0.5A@110VDC, 0.3A@220VDC |
| SOE record | Max 300 lists |
| Panel protection level | Front: IP54; Rear: IP20 |
| Communication | RS485 Modbus RTU |
| Indication method | LED indicator or text panel |
| Insulation performance | 2.5 kV AC RMS 1 minute, between input / output / case / power supply.
2 kV AC RMS 1 minute, between input / power supply/ communication. |
| Operating environment | Temp.: -20°C ~+60°C; Humidity: Annual avg. ≤75%, max ≤93% |
| Wiring terminal | 0.2…2.5mm² |
| Working cycle | 100% |
| Installation method | Panel mount |
| Dimension | Frame size: 96×96 mm; hole size:91x91mm |
Front view
Side view
