Installation modular contactor 25A, 2xNO, 24V AC/DC STM-25-20/24V EXT10000289

Modular contactor – reliable circuit control

The STM-25-20/24V modular installation contactor is a component designed to control electrical circuits in domestic and industrial installations. The device is characterized by a compact design, easy mounting on a TH35 rail and high reliability. It is an ideal solution wherever remote switching of receivers with higher current consumption is needed, using a low-voltage control signal.

Construction and application

This contactor has two normally open contacts (2NO), which means that the circuit is open in the rest state and closes when a 24V DC control voltage is applied. This makes it perfect for applications such as lighting control, heating, simple automation systems or heating devices. The ability to cooperate with SPM-05-11 and SPM-05-20 auxiliary contacts expands the functionality of the contactor, allowing for the implementation of more advanced control systems. The contactor design provides galvanic isolation between the control circuit and the load, which increases safety.

Key features and benefits

• Designed to work with 24V DC: Enables integration with a wide range of control systems.
• 2xNO contact arrangement: Provides flexibility in circuit configuration.
• Load capacity 25A (AC5b and AC7a): Allows control of devices with significant power consumption.
• Mounting on TH35 rail: Facilitates and speeds up installation in electrical panels.
• Optical indication: Built-in LED indicates the contactor's on state, making diagnostics and device operation control easier.
• Cooperation with auxiliary contacts: Expands the application possibilities of the contactor.
• Compact dimensions: Allow for efficient use of space in the switchboard (1 module width).
• Compliance with standards PN-EN 61095:2011; PN-EN 50419:2008; PN-EN 63000:2019-01: Guarantee of safety and compliance with applicable regulations.

Remember that the correct installation of the contactor should be carried out by a qualified electrician with SEP permissions. Disconnect the power supply before starting work!