Detectomat ALPHA 4/8/12 Modular Fire Alarm Panel

What is it?
The Detectomat ALPHA 4/8/12 is a conventional, modular fire alarm control panel that serves as the central control unit of a fire detection system. It is designed for installations with 4 to 12 detection zones and provides reliable, standards-compliant fire monitoring with straightforward operation.

Where is it used?
It is used in small to medium-sized buildings such as offices, retail spaces, schools, warehouses, and light industrial environments. The system is suitable for locations where conventional fire detection is sufficient and a cost-effective, easy-to-manage solution is required.

How does it work?
The fire control panel continuously monitors connected detectors and manual call points by zone. When smoke, heat, or manual activation is detected, the panel processes the signal and activates alarms, sounders, and relay outputs. Thanks to its modular design, the system can be easily expanded with additional detection zones, relay modules, or extinguishing modules.

What problems does it solve?
The ALPHA 4/8/12 provides a reliable and clear fire detection solution without the complexity of addressable systems. It simplifies installation and maintenance, ensures fast alarm detection, and offers clear zone indication, enabling quick and effective response in the event of a fire.

Electrical Specifications

Mains supply: 230 V ~ 50/60 Hz
Operating voltage: 27 V DC
Wiring capacity: 0.5 mm² (max 500 m) up to 2.5 mm² (max 2500 m)
Backup batteries: 2 × 12 V / 7.2 Ah
Maximum current output: 1 A

Mechanical & Environmental

Dimensions (H × W × D): 300 × 370 × 118 mm
Weight (without batteries): approx. 2 kg
Protection rating: IP31
Operating temperature range: 0 °C to 50 °C

Detection & Zones

Base module: AR4D with 4 detection lines (128 points)
Expandable up to 12 detection zones (384 points) with optional zone expansion cards
Supports a maximum of 32 detectors and/or manual call points per detection line

Inputs & Outputs

1 monitored programmable input for external supply state, external sounders activation, or remote reset panel
1 monitored sounder line at 24 V / 450 mA
1 monitored external power supply output at 24 V / 450 mA
4 programmable open-collector outputs configurable for alarm, pre-alarm, disabled, test, system fault, power supply fault, evacuate, active, buzzer on, reset, etc. (40 V / 0.1 A)
1 Alarm (NC/NO) and 1 Fault (NC/NO) relay contact rated at 30 V / 1 A

Optional Modules & Accessories

REP4R, R4P2, R7P2, R12P2 relay boards with potential-free contacts (4, 4, 7, and 12 relays respectively)
EX4A4 detector zone expansion module (4 additional detection lines)
DEAG extinguishing module (manages extinguishing actuators, indicators/sounders, manual extinguishing line, inhibition line, pressure contact line, and external power supply)

Key Features

Microprocessor-controlled with SMD technology for reliability and stability
Compact and cost-effective solution for small/medium conventional fire systems
Modular design allows flexible system expansion
Day/Night mode and programmable via keyboard with access level control for configuration and maintenance

ALPHA 4/8/12 Datasheet

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