Hekatron HEK ORS 144 K optische rookmelder 5000580-0401

The Hekatron HEK ORS 144 K stands out as an optical scattered light smoke detector built for reliable early fire detection in demanding environments. Its automatic drift compensation keeps sensitivity stable over time, while contamination detection alerts you when cleaning is needed. An alarm memory and remote reset function simplify maintenance and testing.

Highlights

• Optical scattered light detection principle for fast response to smouldering fires
• Wide operating voltage range of 8.5 to 33 V DC
• Potential-free changeover relay output for flexible integration
• Operating temperature range from -20 °C to +70 °C
• Light grey ABS housing (RAL 9002) with IP42 protection

In daily use

Designed for fire alarm systems and ventilation monitoring, the ORS 144 K mounts on a compatible Hekatron base (144, 144 A, or 144 R). Its low quiescent current of 100 µA at 24 V DC minimises power consumption, while the alarm current stays below 10 mA. The relay contact is rated for up to 30 V DC / 1 A, allowing direct control of external devices.

Full specifications

• Detection principle: Optical scattered light
• Operating voltage: 8.5 - 33 V DC
• Quiescent current: Typ. 100 µA (at 24 V DC)
• Alarm current: Max. 10 mA (at 24 V DC)
• Alarm output: Potential-free changeover relay contact
• Contact rating: Max. 30 V DC / 1 A
• Operating temperature: -20 °C to +70 °C
• Protection class: IP42
• Housing material: ABS
• Colour: Light grey (RAL 9002)
• Approvals: VdS G206001, EN 54-7

Final note

For reliable smoke detection with advanced self-monitoring, the Hekatron ORS 144 K is a proven choice in professional fire safety installations.