Features

 Polarity-sensitive external connections. Input 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: UL864 NFPA [70,72]

Description

In loop type fire alarm system, it often occurs that partial short circuit of loop affects the whole system. C-M9503 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.

Connection and Cabling

IN+, IN-: Input cable, IN+ is positive, and IN- is negative. OUT+, OUT-: Output cable. OUT+ is positive, and OUT- is negative. Recommended Cabling 17AWG~14AWG (maximum 14AWG) fire cable, subject to local codes.