Hekatron optische rookmelder ORS 1 (4000259-0201)

Optical smoke switch for hold-open systems, designed as a direct replacement unit. Detects smoke via scattered light and triggers a potential-free relay to release fire doors. Operates on 24 V DC with low standby current.

Advantages

Reliable optical detection with minimal false alarms. Simple replacement in existing Hekatron installations. Robust ABS housing in white (RAL 9010).

Suitable for

• Hold-open systems in buildings
• Replacement of existing ORS 1 units
• Indoor use up to 60 m² monitoring area

Key specifications

• Detection principle: Optical (scattered light)
• Operating voltage: 24 V DC (18–28 V DC)
• Standby current: approx. 10 mA
• Alarm current: approx. 25 mA
• Alarm output: potential-free relay (NO/NC)
• Max. switching capacity: 30 V DC / 1 A
• Operating temperature: -5 °C to +50 °C
• Humidity: 10 % to 95 % RH (non-condensing)
• Protection class: IP42
• Material: ABS

Recommendations

Verify compatibility with your hold-open system before installation. Only for replacement, not for new installations.