Sequencer module EN54C-LS4 for actuators without return spring

Sequence module EN54C-LS4 is a device designed to work with electric actuators without a return spring, used in fire protection systems – fire dampers and fire ventilation dampers. Its main task is to limit the inrush current when many actuators are switched on simultaneously, which protects the power supply and ensures the reliable operation of the entire system.

Thanks to the use of this module, the receivers (actuators) connected to its outputs are switched on sequentially, with a delay of 100 ms. This clever solution allows to distribute the power consumption over time, minimizing the risk of overloading the power supply.

The EN54C-LS4 module is compatible with power supplies from the EN54C and EN54M series, making it a universal element of fire protection installations. Its installation is simple and intuitive, and its compact dimensions allow for easy placement inside the power supply housing.

Why choose the EN54C-LS4 module?

• Power supply protection: Sequential switching of actuators reduces the inrush current, protecting the power supply from overload and extending its lifespan.
• System reliability: Stable operation of the power supply translates to reliable operation of the entire fire protection system.
• Compatibility: The module works with a wide range of power supplies from the EN54C and EN54M series.
• Simple installation: Installation is quick and does not require specialized tools.
• Application in fire protection systems: Ideal for electrically controlled fire dampers and fire ventilation dampers without a return spring.

This module is an important element improving the safety and reliability of fire protection systems, especially in facilities with a large number of controlled actuators. It ensures smooth and controlled start-up of devices, minimizing the risk of failure and providing effective fire protection. It is worth remembering its application during the design and installation of fire alarm systems and fire protection automation.