Eaton easyE4 AC Digital I/O Expansion Module, 16 Inputs, 4 Relay Outputs, 100-240 V AC (197222)

Industrial automation engineers and panel builders use the Eaton easyE4 AC expansion module to add digital I/O capacity to an easyE4 control relay. It mounts on a 35 mm DIN rail and connects to the base unit via the easyE4 expansion bus, providing 16 AC digital inputs and 4 relay outputs for switching loads up to 8 A. The module operates from a 100-240 V AC supply and is suited for machine control, building automation, and small-scale process applications.

Key specifications

• Series: Eaton easyE4
• Supply voltage: 100-240 V AC
• Digital inputs: 16 (100-240 V AC)
• Outputs: 4 relay (NO), 8 A per relay
• Relay output voltage: max. 250 V AC / 24 V DC
• Mounting: 35 mm DIN rail
• Connection: screw terminals
• Operating temperature: -25 to +55 °C
• Power consumption: 7.5 VA
• Max. expansion modules per base unit: 11

Why choose it

The module integrates directly with the easyE4 system, allowing you to expand your control solution without additional programming tools. Its AC inputs simplify connection to line-voltage sensors and switches, while the relay outputs can directly drive contactors, valves, and small motors.

Ideal use cases

• Adding I/O to easyE4 control relays in machine control panels
• Building automation for HVAC and lighting control
• Small conveyor or packaging systems requiring AC inputs and relay outputs

Good to know

The module is designed for DIN rail mounting in an enclosure. Up to 11 expansion modules can be connected to a single easyE4 base unit, providing scalable I/O for growing applications.