TNA DET C631 CONVENTIONAL OPTICAL SMOKE DETECTOR

Description

The DET-C631 is a conventional (non-addressable) optical (photo-electric) smoke detector designed for general fire detection in commercial and industrial environments. It uses an internal infrared emitter/receiver chamber to detect visible smoke particles from smouldering materials like wood, paper, PVC or foam. 

It operates over a wide voltage range (9.6 – 30 V DC) and offers low standby current, making it suitable for modern fire alarm loops. It carries LPCB certification and complies with the EN54-7 standard. 

Key Features

• Wide operating voltage: 9.6 – 30 V DC, nominal 24 V DC

• Very low quiescent current: ≤ 65 µA standby typical 

• Alarm current: 18–22 mA (typical ~20 mA)

• Remote LED output drive: Max 20 mA to drive external indicator 

• Operating temperature range: –10 °C to +50 °C 

• Relative humidity: up to 95 % RH (non-condensing) at 40 °C 

• Max air velocity: 7.6 m/s — suitable for some airflow environments 

• Housing: ABS plastic (UL94 V-0 rated), colour: white

• Ingress protection: IP42 standard (indoor use) 

• LPCB approved, complies with EN54-7 optical smoke detection standard

Industrial Uses / Applications

• Office buildings and commercial premises

• Retail stores, shopping malls

• Schools, clinics, educational institutions

• Warehouses and storage facilities

• Areas where visible smoke detection is preferred (e.g., smouldering fire risk)