Modular contactor ST25-40/24 modular contactor 4NC contacts I=25A coil voltage U=24V AC 2 modules ST25-40-24V

Modular contactor for DIN rail mounting – reliable circuit control

This modular contactor from F&F is a compact and efficient solution for controlling electrical circuits. Designed for direct mounting on a standard 35mm rail, it is ideal for both home and industrial installations. Its construction ensures easy installation and intuitive operation.

Characteristics and application

The ST25-40/24V contactor is designed for frequent switching of circuits with a rated current of up to 25A. It has 4 normally open (NO) and 4 normally closed (NC) contacts, providing great flexibility in configuring control circuits. The 24V AC coil voltage makes it compatible with most standard control systems. The use of characteristic C allows it to react more slowly to short current surges, therefore it tolerates starting devices with a motor well.

Key features and benefits

• Compact size: Occupies only 2 modules on the rail, saving space in the distribution board.
• High reliability: Made of high-quality materials, guarantees long-lasting and trouble-free operation.
• Versatility: 8 contacts (4NO/4NC) allow for the implementation of various control functions.
• Safety: IP20 protection class provides protection against finger contact and against the ingress of solid objects larger than 12.5 mm.
• Easy installation: Designed for quick mounting on a standard 35mm rail – saves installers time.
• Maximum switching capacity for lamps: Up to 9000W – allows control of even large lighting loads.
• Rated operating voltage: 230…230V – compatible with typical electrical networks.
• Rated control voltage: 24…24V AC – a wide range of control voltages makes it easier to integrate with various automation systems.

The rated operating current is 25A, and the rated operating voltage is 230…230V. The contactor has a rated control voltage of 24…24V AC and a configuration of 4 normally open and 4 normally closed contacts. Its width is only 2 modules, and the protection class is IP20, ensuring safe use. The maximum switching capacity for lamps is up to 9000W.

This contactor is a solid solution for professionals and demanding users who value reliability and functionality in a compact form. It protects the circuit against overload and short circuit — like most circuit breakers in this class.