In loop type fire alarm system, it often occurs that partial short circuit of loop affects the whole system. C-9503 Loop Isolator can isolate the shorted circuit from the whole system to ensure normal operation of other parts and locate the isolated part. The isolator is applicable to all kinds of loop fire alarm systems, suitable for Class A and Class B .
☆ Operating Voltage : 24VDC (16VDC~28VDC)
☆ Standby Current : ≤3mA
☆ Action Current : ≤15mA
☆ Capacity : Maximum 32 devices every two isolators
☆ Indicator : Yellow, flashes when polling, illuminates in action.
☆ Polarity-sensitive external connections. Input 0832-CPD-0839 and output can be used inversely without direction.
☆ Delayed power-up to output end devices, avoids strong transient current when the load is heavy.
☆ Plug-in structure.
☆ Standards: EN 54-17:2005 / UL864ction.