Notifier NFXI-TFIX58 Opal Heat Detector, Fixed 58°C

The Notifier NFXI-TFIX58 is an Opal analogue addressable fixed temperature heat detector set to 58°C (Class A1S), with built-in short circuit isolation. It uses a low mass thermistor and microprocessor for fast, linear temperature sensing, and its thresholds can be adjusted from the control panel through the Opal protocol. Two tri-colour LEDs give 360° local status indication.

Key features

• Fixed 58°C heat detection, Class A1S
• Built-in short circuit isolator for precise fault location
• Opal protocol with loop mapping and panel configurable sensitivity
• Two tri-colour LEDs (red, green, amber) for 360° status indication, static or flashing
• Rotary decade address switches
• Pure white finish
• Full mechanical and electrical backwards compatibility
• Base designed to make installation and wiring easier

Technical specifications

• Part number: NFXI-TFIX58
• Detection: fixed temperature 58°C, Class A1S
• Operating voltage: 15 to 28.5V DC
• Isolator: 15mA isolation current at 24V DC; 1A max continuous current with switch closed
• Operating temperature: -30°C to +70°C (do not install where normal ambient is above 50°C)
• Humidity: 10% to 93% RH, non-condensing
• Dimensions: 102mm diameter x 61mm high (on B501AP base)
• Weight: 88g including base
• Colour and material: white PC/ABS
• Terminal wire size: 2.5mm²
• Base: B501AP (not included)
• Certificate: 0786-CPD-20641
• Warranty: 3 years