Programmable Logic Controller · 8 Digital Inputs 4 Relay Outputs 100-240V AC/DC Display and Ethernet · Eaton EASY-E4-AC-12RC1

What this product is for

The Eaton EASY-E4-AC-12RC1 is a compact programmable logic controller and control relay for small automation tasks. It is used where you need logic control, timing, switching, and local operator visibility in one DIN rail device.

Use for

Use for small machines, pump control, fan and ventilation panels, lighting control, utility panels, and building services automation. It suits applications that need 100-240V AC/DC supply, 8 digital inputs, and 4 relay outputs.

Avoid for

Avoid for larger PLC systems that need high I/O count, advanced motion control, or heavy analogue processing without added expansion modules. Also avoid where transistor outputs are required for high-speed switching.

Best for

Best for electricians, panel builders, and OEMs needing a compact expandable controller with onboard display and Ethernet for straightforward control logic. A practical choice when relay outputs are preferred for switching field devices and interfacing with contactors or pilot devices.

Installed in

Typically installed in industrial control panels, mechanical rooms, OEM equipment, pump houses, and light commercial automation enclosures. Mounts on 35 mm DIN rail and is commonly used in retrofit or new panel builds.

Why this product exists

This model combines a smart relay form factor with PLC-style programmability, display, clock functions, and Ethernet communication. It helps reduce panel space and component count for smaller control jobs.

Compared with similar products

Compared with basic smart relays, the easyE4 platform adds Ethernet and expansion capability for more flexible control schemes. Compared with larger PLC platforms, it is better suited to compact applications where panel space, wiring simplicity, and relay outputs matter more than large-scale I/O.

Specifications

• Manufacturer: Eaton
• Series: easyE4
• Part number: EASY-E4-AC-12RC1
• Type: Nano programmable logic controller / electronic control relay
• Supply voltage: 100-240V AC or 100-240V DC
• Inputs: 8 digital inputs
• Outputs: 4 relay outputs
• Display: Integrated display
• Communication: Ethernet interface
• Expandable: Yes, with easyE4 expansion modules
• Mounting: 35 mm DIN rail or screw fixing with accessories
• Approximate size: 71.5 x 90 x 58 mm (2.8 x 3.5 x 2.3 in)
• Terminal wire range: 22-12 AWG

Typical buying guidance: relay-output PLCs like this are commonly selected where the controller must switch contactor coils, pilot devices, or mixed-voltage control circuits. Actual suitability depends on load type, inrush current, control scheme, and local electrical code.