16-Channel Fault Annunciator Relay
The 16-channel fault annunciator relay is installed on electrical cabinet panels. It enhances wiring efficiency and is suitable for power control and monitoring systems, using a reliable MCU to monitor external status and provide prompt alarm responses.





Technical Specifications
Overview
Reliable 16-Channel Monitoring
The ALM-CH16 is a professional-grade fault annunciator relay designed for critical monitoring in industrial and power applications. It provides 16 individual channels for real-time alarm signaling, featuring visual LED indicators and an integrated audible buzzer. With support for RS-485 Modbus-RTU communication and flexible confirmation logic, it ensures seamless integration into remote monitoring and control systems.
Key Performance Metrics
Technical Highlights
Technical Specifications
Communication Protocol
- Load Capacity (AC)
- 5 A
- Dielectric Strength
- 2 kV AC RMS for 1 minute
Operational Features
Alarm Logic & Indication
- Flashing alarm lights until confirmation
- Customizable/replaceable alarm labels
- Centralized alarm output for multiple signals
- Self-fault alarm with normally closed contact
- Flexible confirmation logic with real-time updates
- Control Functions
- MuteResetTestRemote Release
Hardware & Interface
Relay Output Types
| Function | Logic Description |
|---|---|
| Alarm | Closes loops when any DI channel is active |
| Safety | Opens loops during annunciator fault or power off |
| Buzzer | Closes loops when alarm status is active |
- Design & Maintenance
- Modular design for easy installation and maintenance



