- Stock 8
Control Relay · 100-240V AC/DC · 8 DI 4 relay outputs Ethernet expandable · Eaton EASY-E4-AC-12RCX1
Expandable easyE4 control relay for industrial automation and building control with 8 digital inputs, 4 relay outputs, and integrated Ethernet. Suited to 100-240V AC or 110-220V DC supply applications where compact logic control and network communication are required.
What this product is for
The Eaton EASY-E4-AC-12RCX1 is a compact easyE4 base control relay for small machine control, panel building, and building automation tasks. It combines logic control, relay outputs, and Ethernet communication in one expandable base unit.
Use for
Use for pump control, fan sequencing, lighting control, door and gate logic, alarm handling, and small process control panels where 100-240V AC supply is available. It is commonly used where electricians or integrators need a compact programmable relay with network connectivity and future I/O expansion.
Avoid for
Avoid for safety-rated control functions, hazardous-location designs unless the full assembly is engineered for that purpose, or applications needing more I/O or PLC capability than a smart relay platform typically provides. Also avoid where a display on the base unit is required, since this model is the non-display version.
Best for
Best for OEM panels, retrofit control upgrades, and building services control where DIN rail mounting, Ethernet communication, and relay switching outputs are needed in a compact footprint.
Installed in
Typically installed in industrial control panels, mechanical rooms, equipment skids, and commercial building control enclosures. The housing is approximately 72 mm wide x 90 mm high x 58 mm deep (about 2.8 in x 3.5 in x 2.3 in) and is suited to DIN rail mounting.
Why this product exists
This model fills the gap between hard-wired relay logic and a larger PLC. It gives contractors and panel shops a simpler way to handle timed sequences, interlocks, and Ethernet-connected control in a compact expandable platform.
Compared with similar products
Compared with a basic non-Ethernet smart relay, this version adds Ethernet capability and expansion support for more flexible system design. Compared with a full PLC, it is typically a simpler choice for smaller control jobs with modest I/O counts. Actual suitability depends on programming, network architecture, and local code requirements.
Specifications
- Product family: Eaton easyE4
- Type: Expandable Ethernet control relay base unit
- Manufacturer part number: EASY-E4-AC-12RCX1
- Supply voltage: 100-240V AC, 50/60 Hz; 110-220V DC
- Inputs: 8 digital inputs
- Outputs: 4 relay outputs
- Networking: 1 Industrial Ethernet interface
- Protocols supported: TCP/IP, Modbus
- Mounting: DIN rail, wall/direct mounting, front installation
- Terminal style: Screw terminal
- Display: No
- Ingress protection: IP20
- Approximate dimensions: 72 mm x 90 mm x 58 mm (2.8 in x 3.5 in x 2.3 in)
- Typical use: Small automation and building control panels
- Supply Voltage100-240V AC, 50/60 Hz; 110-220V DC
- ApplicationSmall automation and building control panels
- Dimensions72 mm x 90 mm x 58 mm (2.8 in x 3.5 in x 2.3 in)
- Product FamilyEaton easyE4
- MountingDIN rail, wall/direct mounting, front installation
- Ingress ProtectionIP20
- Terminal StyleScrew terminal
- DisplayNo
- Outputs4 relay outputs
- Inputs8 digital inputs
- BrandsEaton
- Stock in Elmira1
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