The Apollo 55000-822APO is an XP95 DIN-Rail Switch Monitor, designed for addressable fire alarm systems using the XP95 or Discovery protocol
The Apollo 55000-822APO is an XP95 DIN-Rail Switch Monitor, designed for addressable fire alarm systems using the XP95 or Discovery protocol.
Function & Purpose
Monitors the state of single-pole, volt-free contacts (e.g., manual call points, flow switches)
Reports status to compatible control panels with four input states:
Normal
Fault
Pre-alarm
Alarm
Includes red LED for alarm indication and yellow LED for fault detection
Technical Specs
Attribute
Details
Operating Voltage
17–28V DC
Max Current (24V)
2.5mA (switch-on surge)
Alarm Current
~3.5mA
Fault Current
~1.3mA
Monitoring Voltage
9–11V DC
Dimensions
110 × 107 × 20 mm
Weight
~95g
IP Rating
IP20
Operating Temp
–20°C to +70°C
Humidity Range
0–95% RH (non-condensing)
Status & Replacement
This unit is discontinued and has been replaced by the Apollo SA4700-300APO Intelligent DIN-Rail Switch Monitor, which offers improved compatibility and support.
