Roller shutter controller STR-22 one-button, Un = 24V AC, 8A, surface mounting or in the roller shutter cassette

Roller shutter controllers are designed to control roller shutters (up-down) or other objects (e.g. gates) driven by a single-phase AC electric motor with momentary switches (e.g. bells). The controller can work as a standalone device (designed to open / close one roller shutter), as well as it is possible to combine the controllers into groups enabling central control of many roller shutters.