Cranford Controls XP95BARR KFD0-CS-EX1.54 Barrier for XP95 IS Detectors

Brand: Cranford Controls

Part Number: 305-002
Categories: Ancillary (Addressable Fire Alarm Equipment)

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Cranford Controls XP95BARR KFD0-CS-EX1.54 Barrier for XP95 IS Detectors

KFD0-CS-EX1.54 devices have 4 terminals per channel. The input and output are galvanically isolated from each other.

The device is used in order to control compatible fire or smoke detectors in the hazardous area. The power source for the indicators is mounted in the safe area. The device transfers the voltage to the hazardous area. A response from the indicator is displayed in the case of a current alteration in the safe area. With the device it is possible to modulate an AC voltage signal upon an analogue signal. A digital data exchange between the devices in the safe area and the hazardous area is then possible parallel to signal transfer. The drop time of the digital signal must be less than 50 µs and the current in the hazardous area must be greater than 1 mA.

The range of isolated barriers that Cranford Controls offer are available to suit most applications for interfacing fire detectors onto conventional and addressable systems as well as driving IS sounders/beacons. Each barrier has been tested and certified so that over voltage on the primary (safe) side of the transformer cannot release energy across the winding to the secondary (hazardous) winding of the transformer.

The use of transformer isolated barriers combined with sounders means that installers may wire both detectors and sounders/beacons with no requirement for an intrinsically safe earth, making for a more simplified and cost-effective approach to hazardous areas. Din rail enclosures are available to suit the requirements of each barrier interface.

Key Features