Installation modular contactor 25A, 4xNO, 230V AC STM-25-40 EXT10000295

Modular contactor for lighting and heating control

The STM-25-40 modular contactor is a reliable device designed to control electrical circuits in home and industrial installations. Thanks to its compact size and easy mounting on a TH35 rail, it is ideal for electrical panels. Its main function is to remotely switch on and off current receivers, such as lighting, heating or simple automation systems.

Construction and application

The device is characterized by a four normally open (4xNO) contact arrangement, which allows simultaneous control of multiple circuits. Maximum current of 25A in AC5b and AC7a categories ensures compatibility with various types of loads, including resistive and inductive. This contactor is compatible with SPM-05-11 and SPM-05-20 auxiliary contacts, which allows expanding the functionality of the control system - e.g. adding status indication or remote reset.

• Versatility: Perfect for controlling lighting, heating, ventilation and simple automation systems.
• Easy installation: Quick and convenient mounting on a standard TH35 rail.
• Accessory compatibility: Possibility of expanding functionality thanks to compatibility with SPM-05-11 and SPM-05-20 auxiliary contacts.
• Reliability: Ensures stable and safe operation of electrical circuits.

Operating parameters and safety

The STM-25-40 contactor has been designed for long-term and safe operation. It operates at 230V AC, and its power consumption is 4W. The operating temperature range from -5°C to 60°C allows it to be used in various environmental conditions. IP20 protection class provides protection against accidental contact, but does not protect against the effects of water or dust - therefore the device should be mounted in a panel enclosure. Optical signaling facilitates visual control of the contactor's operating status.