Apollo DIN-Rail Input/Output Unit (55000-803APO)

The Apollo DIN-Rail Input/Output Unit (55000-803APO) provides a flexible interface between an addressable fire alarm system and external equipment. The unit combines a voltage-free single-pole changeover relay output, a single monitored switch input, and an unmonitored non-polarised opto-coupled input, making it fitting for a wide range of monitoring and control applications.

The 55000-803APO monitors connected switch circuits and can report fault, switch open, and switch closed conditions to the fire alarm control panel. This helps provide accurate monitoring of external devices and system status.

The unit draws power directly from the addressable loop, removing the need for a separate power supply and making installation simpler. Three visible LEDs provide clear local status indication, allowing installers and maintenance personnel to quickly check the operating condition of the unit.

Designed for DIN-rail mounting, the module can be easily installed within control panels and equipment enclosures.

Key Features

• Addressable DIN-rail input / output unit
• Voltage-free single-pole changeover relay output
• Single monitored switch input
• Unmonitored non-polarised opto-coupled input
• Reports fault, switch open, and switch closed conditions
• Three visible status LEDs
• Loop powered
• Capable of going up to 30V at 1A
• DIN-rail mounting design
• Suitable for monitoring and control applications

Typical Applications

The Apollo 55000-803APO is fitting for a variety of monitoring and control functions, including:

• Fire door monitoring and control
• Smoke control systems
• HVAC shut down systems
• Building management systems
• Plant equipment monitoring
• Alarm connection
• Security system integration
• Remote equipment control