'elmex' Single Changeover Relay Interface Modules are used mainly for interfacing digital output devices in field. This module implements 1 Form C contact for Relay.
'elmex' Two Changeover Relay Interface Modules are used mainly for interfacing digital output devices in field. This module implements 2 Form C contact for Relay.
'elmex' Four Changeover Relay Interface Modules are used mainly for interfacing digital output devices in field. This module implements 4 Form C contact for Relay.
