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Multi-Purpose Switch/Logic Relay

it-r4- 4 relay module w/ contact closure control


4 Relay Module w/ Contact Closure Control

The IT-R4 is a multi-purpose switch or logic level activated Relay Module. Four user configured relays are controlled via five input ports that are designed to accept either a switch contact closure or logic level input. A four-position configuration dip switch sets the operating behavior of the relays. Each relay can be set for different operating modes; “On, “Off”, pulsed for a ¼ of a second, or toggled, which changes the relay to the opposite state.

Power Requirements: Power Supplies are sold separately. One Power Supply can power up to (5) IT-R4 and/or IT-R4S modules, saving wiring headaches and money.


Below is a typical application diagram showing how useful these modules really are:

IT R4SappC