Connecting equipment to modules
18
Other devices
Dry contact pulse output
Dry contact digital switch
Connecting equipment to Relay Modules
Relay Modules have general-purpose relays for connecting equipment that is either on or off.
Examples include heaters, furnaces, single-speed fans, and lights. You can also use a relay as a
disconnect switch for a 0 to 10 VDC device.
The
RM-2
Relay Module has two high-capacity relays. Each relay has a current sensor.
The
RM-4
Relay Module has four relays. The RM-4 does not have current sensors.
Connecting equipment to Actuator Modules
The ratings of the equipment you connect must not exceed the ratings of the Relay
Module.
RM-2
20 A at 120/230 VAC,
general-purpose (resistive)
1 HP at 120 VAC, 2 HP at 230 VAC
RM-4
15 A at 120/230 VAC,
general-purpose (resistive)
1/2 HP at 120 VAC, 1 HP at 230 VAC
Gas furnaces using hot-surface ignition or glow plugs can draw more current than
indicated on their nameplate and require power contactors. For more information,
contact your furnace dealer.