Description
OPEN BOX)
APOLLO
WORLD CLASS FIRE SOLUTION
PART NO: 55000-773MAR
MARINE DIN-RAIL ZONE MONITOR UNIT
150430/3
LOOP VOLTAGE: 17-28V DC
QUIESCENT CURRENT: 4MA + DETECTOR LOAD
ZONE VOLTAGE: 19V DC (LOOP VOLTAGE > 22V DC)
END-OF-LINE RESISTOR: 5K1
ALARM CURRENT: 11MA
19MA WITH LED ENABLED
MAX. QUIESCENT DETECTOR LOAD: 2MA
ISOLATING VOLTAGE/MAX. CURRENT: 14V DC/1A CONTINUOUS
MADE IN THE UK
The Apollo 55000-773MAR is a marine DIN-rail zone monitor unit for a ship’s fire alarm system, giving a monitored detector zone that draws its power from the alarm loop. It operates on a 17-28 V DC loop voltage and supplies a 19 V DC zone voltage when the loop is above 22 V DC, with a 5K1 end-of-line resistor on the zone. Alarm current is 11 mA, rising to 19 mA with the LED enabled, and quiescent current is 4 mA plus detector load. The unit, made in the UK, comes in new open box condition.
Key Features
✓ Loop voltage 17-28 V DC
✓ Zone voltage 19 V DC with loop voltage above 22 V DC
✓ 5K1 end-of-line resistor
✓ Alarm current 11 mA, 19 mA with LED enabled
✓ Isolating voltage/max. current 14 V DC/1 A continuous
Marine Applications
✓ Engine room and machinery space detector zones linked to the fire alarm loop
✓ Accommodation corridor and cabin detector zones
✓ DIN-rail installation in fire alarm cabinets and junction boxes
Technical Support
Prota Marine provides technical support, repair and onboard installation for the zone monitor unit and the wider fire alarm system. Our engineers help with fault diagnosis on zone and loop circuits and give commissioning support for new zone connections.



