Series 300 conventional relay bases for fire and security systems

(25/11/2002)

System Sensor Europe has introduced three new designs of base into its Series 300 conventional family. The 24VDC version enables local management of externally powered devices; both the detector and the relay latch on when the detector goes into alarm. The 12VDC versions enable the Series 300 photo-thermal, photoelectric and thermal detectors to be controlled from any security panel operating at 12VDC.

The detectors operate satisfactorily over a wide input voltage range from 8 to 30VDC, making them compatible with a security system's nominal 12VDC supply. If the zoning requirements of a smaller fire system are straightforward, it makes good economic sense to integrate the fire and security functions into one common control panel.

The relay bases are available in latching and non-latching versions to allow the smoke detector to interface with the two commonly used alternative technologies employed in security system control panels. In the latching version, both detector and base permanently latch into alarm until the power is removed from the device; in the non-latching version, the relay changes state on alarm. The non-latching base resets by periodically removing and then re-applying power to itself. The relay then changes state back into alarm if the detector is still in an alarm condition.

The low profile bases measure 127mm in diameter and they are 29mm high, with mounting holes compatible with most styles of European back box and conduit.

Related topics:  Fire, Health & Safety 

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