Tyco Minerva LI520 Line Isolator Module (545.001.007)

Tyco Minerva LI520 Line Isolator Module (545.001.007)

The LI520 Mk2 line isolator is used to ensure that a short circuit fault on the addressable loop will not cause a total systems failure. LI520 Mk2’s effectively contain the fault to specific areas of the loop. Line isolators should be used at the boundary of each zone so that no more than a single zone is made inoperative during a short circuit condition. This feature is a requirement of BS5839 Part 1 1988.

The LI520 Mk2 is also fitted with a red LED to indicate locally when the isolator has been tripped. The maximum number of line isolators per Minerva loop is 12, plus there are two isolator circuits built into the Minerva control panel loop drivers (one for each end of the loop). The LI520 Mk2 takes its operating power from the Minerva loop. The module is not addressable and will therefore not take an address on the loop.

Please Note: This product is no longer Available, Please Contact Us for a Refurbished Price.