Overview

The Apollo 55000-835APO AlarmSense alarm relay module provides a compact interface between an AlarmSense two‑wire fire detection loop and a range of auxiliary devices (visual indicators, vibrating/paging devices, conventional sounders, door‑release units, monitored sounders, etc.). It supports multiple output modes to suit different installation requirements and accessibility standards.

• Three selectable operating configurations: pass zone voltage to output; reverse zone polarity (for dioded sounders); or provide two sets of volt‑free contacts.
• Selectable relay priority (priority / non‑priority) via DIL switch.
• Very low quiescent current in standby (~20 µA) for minimal loop loading.
• Compact, lightweight design for base/pod mounting or installation in a suitable enclosure (approx. 65 × 45 × 25 mm, ~35 g).
• Manufacturer warranty: 10 years (as stated by Apollo).

Use cases

• Interface conventional sounders, visual alarm devices and pager/vibrating alarms to AlarmSense two‑wire systems.
• Provide volt‑free contacts for door retainers or other external control equipment.
• Ideal for installations requiring accessible alarm signalling (DDA) or system interfacing.

Compliance & installation

• Refer to the Apollo datasheet/installation manual for full technical details, wiring diagrams and siting guidance.
• Apollo references CPR on its product page; check local approval/compatibility (CE / UKCA / local codes) before installation.
• Installation and commissioning should be performed by a qualified engineer in accordance with applicable standards and the manufacturer’s instructions.

Note — If you require the official Apollo datasheet or installation manual as a PDF, I can download and attach it.