Trade Discount 25%
Rate of Rise Fire Detector Sealed Against Humidity and Dust Ness
Ness rate of rise fire detector features a sealed body against humidity and dust with easy installation. Ideal for alarm system fire detection.
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Alternatively Known As: Ness 101-294 Rate of Rise Detector, Mechanical Rate of Rise Heat Detector, 2-Wire Heat Detector
Technical Specifications
- Model: AH-0933
- Ness Product Code: 101-294
- Detector Type: Mechanical rate of rise heat detector
- Wiring: 2-wire
- Operating Voltage: 12–30 V DC
- Alarm Current: 40 mA at 24 V DC with 470 ohm resistance
- Alarm Temperature: Complies with EN 54 according to manufacturer datasheet
- Ambient Temperature: 0°C to +55°C
- Material: Fire-resistant plastic
- Colour: White
- Effective Alert Area: Up to 90 m² in fire-proof buildings under 4 m mounting height; up to 50 m² in ordinary buildings under 4 m mounting height
- Approval Marking: CE
- Dimensions (H x L x W): 46mm x 102mm x 102mm
- Weight: 0.13 kg
Key Features
- Detects rapid increases in ambient temperature associated with fire conditions
- Sealed housing helps protect operation from humidity, dust and insects
- Durable fire-resistant plastic construction
- Non-loosening terminal screws for easier installation
- Suitable for connection to compatible 2-wire fire alarm control and indicating equipment
- Designed for alarm system fire detection applications
Professional Installation Requirements
- Installation, testing and commissioning should be performed by a suitably qualified fire detection technician in accordance with the compatible fire alarm system manufacturer's instructions and applicable Australian requirements.
Applications
- Commercial fire alarm systems
- Residential and light-commercial alarm systems
- Fire detection in areas where dust or humidity may affect unsealed detectors
- Warehouses, plant rooms, workshops and service areas
- Locations requiring heat detection rather than smoke detection
Standards & Compliance
- AS ISO 7240.5:2018 is the applicable Australian standard family for point-type heat detectors; product-specific Australian certification was not identified. The manufacturer datasheet states compliance with EN 54 for alarm temperature.
- AS 1603.1-1997 was the former Australian reference for heat detectors and has been superseded by AS ISO 7240.5:2018.
Environmental Benefits
- Sealed construction can reduce premature replacement caused by dust, humidity and insect ingress
- Durable fire-resistant plastic housing may extend service life and reduce product waste
- Low-voltage operation supports integration with efficient, centralised fire alarm systems
Warranty Information
Ness manufactured or supplied products are covered by a 3-year warranty from the date of purchase, unless otherwise specified. Products are repaired or replaced at Ness Corporation's discretion, subject to warranty conditions.
Available Now
Available through Ness and authorised Australian security and fire-alarm distributors.
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