Secutron MRI-M500X Isolator ModuleIt's an automatic switch that opens when the line voltage drops below four volts. The MRI M500X isolator module is used to prevent wiring faults from affecting the entire circuit. It divides the addressable circuit into sections.

Expands Notification Appliance Circuit Power from 3

Two methods of horn control are available: traditional NAC signal silence

the temperature may not increase rapidly enough to operate the rate-of-rise feature

Mounting: Fits 1-gang

— The module can synchronize one (1) class A or two (2) class B NAC lines without the need for programming

card amplifiers

— SB-15 ‘MS’ Series Surface-mount box

No direct replacement

and single cover screw

and propane (C3H8)

and also provides test mode status (see page 3)

and it supports environmental compensation