Installation modular contactor 25A, 4xNC, 230V AC STM-25-04 EXT10000294

Modular contactor for controlling electrical circuits

This ZAMEL STM-25-04 installation modular contactor is a reliable solution for controlling electrical circuits with a current of up to 25A. Designed for convenient mounting and aesthetic appearance, it is ideal for both home and commercial installations. Its compact dimensions allow for easy placement in a distribution board.

Construction and application

The STM-25-04 contactor is equipped with a 4xNC (normally closed) contact arrangement, which means that all four contacts are closed in the rest state. The purpose of this type of contactor is primarily to control receivers that require disconnection in the absence of a control signal – e.g., solenoid valves, safety heaters or alarm systems. It can be used in lighting, heating control systems, as well as simple automation systems. Thanks to cooperation with auxiliary contacts SPM-05-11 and SPM-05-20, the functionality of the contactor can be expanded and adapted to specific application needs.

Advantages and benefits

• High reliability: ZAMEL is a renowned manufacturer of electrical equipment, guaranteeing high quality and durability of its products.
• Versatility: The 4xNC contact arrangement makes the contactor usable in a wide range of applications.
• Easy installation: The modular design facilitates installation on a TH35 rail.
• Compatibility: The ability to cooperate with auxiliary contacts SPM-05-11 and SPM-05-20 allows for expanding the functionality of the device.
• Suitable for AC5b and AC7a loads: This means that the contactor is suitable for controlling various types of inductive and resistive loads. AC5b category applies to inductive loads with moderate starting current, while AC7a – inductive loads with high starting current (e.g. motors).
• Safety: Provides effective protection of the installation against overload and short circuit — like most circuit breakers in this class.

Thanks to these features, the STM-25-04 contactor is an optimal solution for professionals and end users looking for a reliable and easy-to-install device for controlling electrical circuits.