The easyE4 programmable relay is the ideal solution for machine and building automation. With up to 11 expansion modules and 188 I/Os, it offers unmatched flexibility for tailored applications. Its compact design supports DC, AC, and UC voltage variants, simplifying inventory and deployment. Integrated energy metering, secure communications, and compliance with global standards, including cybersecurity, ensure reliable and future-proof performance. Seamless connectivity via Ethernet, Modbus TCP/RTU, and MQTT enables integration into IIoT and cloud environments. Whether for new installations or retrofits, easyE4 delivers fast commissioning, scalable control, and strong value, making it the most versatile and trusted solution in its class.
The easyE4 is designed for efficient, flexible control of small to medium applications. From simple control to sophisticated functionality, it offers advanced communication, visualization, cloud connectivity and precise energy monitoring. These capabilities improve efficiency, lower costs, and support effective energy management.
The easyE4 offers seamless energy metering for precise monitoring and enhanced efficiency, enabled through its connection to the EMD3P energy measurement module. It provides accurate tracking of voltage, current, power, energy, and frequency—all managed within the easyE4 application. This functionality supports cost reduction, ensures ISO 50001 compliance, and contributes to overall improvements in energy management. For quick and convenient integration, starter sets are also available—both AC and UC versions—which include the easyE4 together with the energy metering module.
The easyE4 provides secure, cloud‑based data transfer across multiple devices through MQTT connectivity, supporting AWS and any other cloud platform. This ensures reliable communication for process monitoring, AI‑driven analysis, and automation, while offering flexible and cost‑efficient platform choices.
The enhanced web editor introduces intuitive widgets and scheduling tools, with visualizations accessible from any mobile browser. Timer blocks integrate seamlessly into both programming and visualization, streamlining automation and boosting efficiency.
The user-friendly easySoft software, which is used to program the easyE4 devices, offers a quick and easy introduction to programming. Circuit diagrams can be created, tested and also easily adapted within the software.
To this end, four different programming languages are available: easy device programming (EDP), ladder diagram (LD), function block diagram (FBD) and structured text (ST). Find out more within our easySoft tutorials: Click here
A great way to familiarize yourself with the easyE4 and get to know its functions in more detail, are our various starter set combinations.
These offer the possibility to receive and get to know the easyE4 with different accessories - according to your needs.
Click the link below to have a look:
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| EASY-BOX-E4-UC-SWD | 199507 | easyE4 (UC) with display, ‘easy’ SWD module, easySoft license |
| EASY-BOX-E4-UCX-SWD1 | 199508 | easyE4 (UC) without display, ‘easy’ SWD module, easySoft license |
| EASY-BOX-E4-DC-SWD1 | 199509 | easyE4 (DC) with display, ‘easy’ SWD module, easySoft license |
| EASY-BOX-E4-DCX-SWD1 | 199510 | easyE4 (DC) without display, ‘easy’ SWD module, easySoft license |
| EASY-BOX-E4-AC-SWD1 | 199511 | easyE4 (AC) with display, ‘easy’ SWD module, easySoft license |
| EASY-BOX-E4-ACX-SWD1 | 199512 | easyE4 (AC) without display, ‘easy’ SWD module, easySoft license |
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