Programmable relay 8 digital inputs, 4 relay outputs 24VDC RTC/LCD Zelio Logic SR2B121BD

Compact Zelio Logic programmable controller

The Zelio Logic SR2B121BD programmable relay is a versatile device, ideal for both simple automation tasks and more complex applications. Designed by Schneider Electric, it combines the functionality of a relay with the capabilities of a logic controller, offering a flexible solution for installers and end-users. 24V DC power supply ensures compatibility with a wide range of systems.

Functionality and application

This modular controller is characterized by its compact design and easy mounting on a DIN rail. It has 8 digital inputs and 4 relay outputs, allowing control of various loads. The integrated LCD display and clock facilitate configuration, monitoring and system diagnostics. This allows for quick response to any problems and optimization of device operation. Simple ladder programming makes it accessible even to people without specialized knowledge in PLC programming.

Product advantages and features

• Versatility: 8 digital inputs and 4 relay outputs allow adaptation to many different applications.

• Compact dimensions: Width 71.2 mm, height 90 mm and depth 59.5 mm facilitate mounting in limited space.

• Durability: Switching current up to 8A ensures reliable operation even with higher loads.

• Ease of use: LCD display and intuitive programming simplify configuration and diagnostics.

• Expandability: Although the module itself is not expandable, the Zelio Logic series offers a wide selection of expansion modules, allowing the system to be tailored to individual needs.

• 24V DC power supply: Standard supply voltage ensures compatibility with most industrial installations.

• IP20 protection class: Provides protection against touching with fingers and against the ingress of solid objects larger than 12.5 mm – suitable for industrial environments with a moderate degree of contamination.

• Integrated clock: Enables the implementation of time functions without the need for additional modules.

• Power consumption: Low power consumption (3W) translates into energy savings.

• DIN rail mounting: Quick and easy mounting on a standard DIN TH35mm rail.

This controller will find application in building automation (lighting, heating control), HVAC systems (ventilation, air conditioning control), as well as in simple industrial applications (machine control, production lines). Its reliability and ease of use make it an ideal choice for both professional installers and end-users looking for an effective solution to automate their processes.