- 58°C & 78°C fixed temperature and rate of rise heat detectors
- Ability to customise the heat thresholds
- 100% mechanical and electrical backwards compatibility
- -30°C to +80°C operating temperature range
- 10% to 93% relative humidity
System Sensor Addressable Heat Detectors use low mass thermistors and microprocessors to provide fast response temperature sensing.
System Sensor Addressable Heat Detectors can be configured to provide fixed heat detection at either 58°C or 78°C or as a rate-of-rise detector with 58°C threshold and a rate-of-rise of 10°C/minute.
System Sensor detectors are housed in a modern, white enclosure that includes a tri-colour LED that provides 360° visibility and are available with or without single pole short circuit isolation.
|Operating Voltage Range||15 to 32Vdc|
|Maximum Standby Current||200µA at 24VDC (no communications)/ 300µA at 24VDC (LED blink enabled, once every 5s)|
|Led Current||Red: 3.5mA at 24VdcGreen: 7.0mA @ 24Vdc Yellow: 10.5mA @ 24Vdc|
|Remote Output Voltage||22.5Vdc @ 24Vdc|
|Remote Output Current||10.8mA @ 24Vdc|
|Additional Loop Resistance Using The B501AP||Typical 20mohm (max 30 mohm)|
|Temperature Range||-30°C to +80°C †|
|Humidity||10 to 93% relative Humidity (non-condensing)|
|Heat Detection Performance 52051RE / REI||Class A1R – 58°C fixed temperature and rate of rise|
|Heat Detection Performance 52051E / EI||Class A1S – 58°C fixed temperature|
|Heat Detection Performance 52051HTE / HTEI||Class BS – 78°C fixed temperature|
|Height||61mm installed in B501AP base|
|Diameter||102mm installed in B501AP base|
|Weight||88g (excluding base)|
|Max Wire Gauge for Terminals||2.5mm2|
† Do not install detectors in locations where normal ambient temperature exceeds 50°C
- System Sensor Addressable Heat Detector Datasheet
- System Sensor Addressable Heat Detector Installation Manual
Eurofyre is an authorised distributor of Honeywell and we support the entire Morley IAS and System Sensor range of products. We offer expert advice and supply all aspects of fire detection systems including excellent before and after-sale support.
Contact us to receive competitive trade discounts or apply online for a credit account.