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How many expansion modules can you use on the SR3 relays?
Issue:
Need to know how many expansion modules can you use on the SR3 relays

Product Line:
Relays and Timers

Environment:
Zelio Logic Smart Relay

Resolution:
Depends on the type of the extension module:
The SR3** is capable of adding 1 I/O or 1 analog extension module along with 1 Modbus or Ethernet communication module.
A SR2COM01 communication module for the modem can also be connected to SR3** relay through the front port.

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