OT306
The ORENA OT306 is a 2-wire, non-polarity conventional heat detector operating at 24VDC, featuring a precise NTC resistor for temperature sensing with hardware filtering to verify true fire conditions and minimize false alarms.
Designed without base for flexible installation, it provides fixed temperature detection suitable for kitchens, garages, or dusty environments where smoke detectors are impractical, with compatibility across standard conventional fire alarm control panels.
| Specification | Details |
|---|
| Specification | Details |
|---|---|
| Part Number | OT306 |
| Type | 2-wire fixed temperature heat, non-polarity |
| Operating Voltage | DC 12-28V (nominal 24VDC) |
| Quiescent Current | ≤200 µA |
| Alarm Current | ≤30 mA |
| Alarm Temperature | Fixed 68°C (A1 class) |
| Coverage Area | 50 m² |
| Dimensions | Ø100 × 51 mm (w/base); 45 mm (head only) |
| Weight | ~70g (head only) |
| Operating Temp | -10°C to +60°C |
| Humidity | ≤95% RH (non-condensing) |
| Standards | EN54-5 |
