Modular contactor SM 425 25A 230V 4NO 412535

Universal modular contactor for load control

The SM 425 modular contactor is a reliable device designed to control various electrical loads. It finds application both in home installations and in commercial facilities where efficient and safe circuit switching is required. Thanks to its compact size and mounting on a TH35 rail, installation is quick and easy.

Construction and functionality

The device is characterized by four normally open contacts (4NO), allowing simultaneous switching of several circuits. The rated operating current is 25A at 230V AC, making it suitable for controlling medium-power loads such as lighting, heating or pumps. A manual control slider facilitates testing and maintenance of the device without the need to disconnect the power supply. A width of 2 modules allows for optimal use of space in the distribution board.

Applications and benefits

The SM 425 contactor performs perfectly in applications requiring frequent circuit switching, such as:

• Controlling lighting in residential and commercial buildings.
• Switching electric heating systems on and off.
• Controlling the operation of water pumps, e.g. in irrigation or swimming pool systems.
• Automation of industrial processes requiring remote control of loads.

Thanks to the high switching capacity for various types of loads – incandescent bulbs (3000W), fluorescent lamps (up to 2200 VA with DUO compensation) – the contactor provides versatility of application. The IP2X degree of protection protects against touching live parts, increasing safety of use. The possibility of additional equipment expands the functionality of the device, adapting it to the specific needs of the installation. The control voltage of 195-253V AC ensures compatibility with most standard control systems.