Installation modular contactor 25A, 3xNO + 1xNC, 230V AC STM-25-31 EXT10000292

Modular contactor for controlling electrical circuits

This modular contactor, designed for mounting on a TH35 rail, is a reliable solution for controlling electrical circuits in building and industrial installations. Designed by ZAMEL from the EXTA series, model STM-25-31 offers an optimal combination of functionality and compact size. It is an element that will work well in both simple automation systems and more complex control systems for lighting or heating.

Construction and application

The STM-25-31 contactor is characterized by a contact arrangement of 3xNO (normally open) and 1xNC (normally closed), which provides flexibility in circuit configuration. Adapted to operate at 230V AC, it allows for safe and efficient switching of a load with a maximum current of 25A in AC5b and AC7a categories. This means that it copes perfectly with inductive loads, such as electric motors or transformers. Therefore, it is ideal for use in heating systems, lighting systems and in simple home and industrial automation systems.

An additional advantage is the possibility of cooperation with auxiliary contacts SPM-05-11 and SPM-05-20, which allows for expanding the functionality of the contactor and adapting it to the specific needs of the installation. Mounting on a TH35 rail facilitates quick and trouble-free installation, and the aesthetic housing ensures a neat appearance.

Key features and benefits

• Versatility: 3xNO + 1xNC contact arrangement enables a wide range of applications in various electrical circuits.
• High efficiency: Rated current of 25A (AC5b, AC7a) ensures reliable switching of inductive loads.
• Compatibility: Possibility of cooperation with auxiliary contacts SPM-05-11 and SPM-05-20 expands the functionality of the device.
• Easy installation: Modular design and mounting on a TH35 rail simplify installation and save time.
• Solid construction: Ensures long-lasting and trouble-free operation in various environmental conditions.
• Safety: Compliance with applicable standards guarantees safe operation of the device.
• Compact dimensions: Allow for mounting in a limited space of the switchgear cabinet.

Thanks to these features, the STM-25-31 contactor is a practical and reliable tool for every installer and end-user looking for a solid solution for controlling electrical circuits.