Silent Knight SK-4XZM Zone Relay Module, Six Form-C Relays for SK-4/SK-4E

The Silent Knight SK-4XZM is a plug-in zone relay module for the SK-4 and SK-4E conventional fire alarm control panels.

By itself the SK-4 offers only panel-wide Form-C alarm, trouble and supervisory relays. This module adds six Form-C relays, one for each initiating device circuit plus system alarm and system trouble, so door holders, dampers and HVAC shutdown can follow the zone that went into alarm.

Key features

• Six Form-C relays: zones 1 to 4, system alarm, system trouble
• Zone relays latch until reset; cut the LATCH jumper for nonlatching, silenceable operation
• On-board disable switch disconnects the relays
• Plugs onto the main circuit board

Ordering note

For SK-4 and SK-4E only; the two-zone SK-2 does not accept a zone relay module. This is not a substitute for the SK-4XTM transmitter module, the SK-4XLM LED interface module or the SK-CAC4 Class A converter.