Buffer module 24V 40A DBUF40-24

Buffer module with supercapacitors – reliable power supply in critical situations

This MEAN WELL DBUF series buffer module, model DBUF40-24, is an advanced solution providing continuous power supply in case of momentary voltage drops. It uses supercapacitors instead of traditional batteries, which translates to a longer lifespan, no maintenance requirements, and instant availability of full power. It is an ideal solution for systems requiring high reliability, such as monitoring systems, industrial automation, or medical devices.

Construction and application

The DBUF40-24 module is designed to operate at 24V DC and 40A current. It can operate in two modes: Dynamic and Fixed, adapting to the specifics of the application. Dynamic mode maintains the output voltage at the input voltage minus 1V, while Fixed mode stabilizes the output voltage at 22V DC. Thanks to the possibility of parallel connection of several modules, the buffering time can be extended – this is particularly useful in applications requiring long-term power backup. LED signaling informs about the device's operating status, and the ability to remotely switch to buffering mode (via a trigger signal) allows integration with advanced control and monitoring systems.

Key advantages and benefits

• Higher reliability: Supercapacitors are characterized by a significantly longer lifespan than lead-acid batteries, eliminating the risk of failure related to their wear and tear.
• No voltage drop effect: Unlike traditional buffering solutions, supercapacitors provide instant availability of full power without voltage drop during switching.
• Wide operating temperature range: The module maintains full functionality in the temperature range of -25°C to +75°C, making it suitable for use in harsh environmental conditions.
• Configuration flexibility: The possibility of parallel connection of modules allows you to adjust the buffering time to individual application needs.
• Simple installation: The module is designed for mounting on a DIN rail, which facilitates its integration with existing installations.
• Status indicators: LEDs inform about the module's operating status – readiness for operation and activation of buffering mode.
• Operating modes: The ability to choose between dynamic and fixed mode allows you to adapt the module's operation to specific system requirements.