The SIGA-IB is a detector base with a built-in line fault isolator for use on Class A circuits. It does not operate without a detector and does not support the SIGA-LED Remote LED.
The isolator operates as follows: a short on the line causes all isolators to open within 23 ms; at 10 ms intervals, beginning on the side of the Class A circuit nearest the loop controller, the isolators close to provide the next isolator down the line with power; when the isolator next to the short closes, it reopens within 10 ms. The process repeats beginning on the other side of the loop controller.
EU compliance: CE
CPD certificates: 0832-CPD-1313
EN 54-17 ratings
V max 19.95 VDC, Vsc min 17.59 VDC
V nom 19.0 VDC, IC max 0.147 A to 0.149 A
V min 15.2 VDC, IL max 0.1 mA
Vso max 17.64 VDC, IS max 0.75 A
Vso min 17.57 VDC, ZC max 400 mΩ
Vsc max 17.70 VDC
European Union directives: 1999/5/EC (R&TTE directive): Hereby, UTC Fire & Security declares that this device is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC.
