Modular contactor, DIN rail mounting, 4NO contacts, 25A ST25-40

Modular contactor for reliable circuit control

This modular contactor, designed for DIN rail mounting, is a robust solution for controlling various electrical circuits. It is suitable for both domestic and industrial installations, offering reliability and ease of installation. The design allows for direct mounting on a 35 mm rail, simplifying integration with existing distribution boards.

Characteristics and application

The ST25-40 modular contactor from F&F is an electromagnetic device that allows for remote switching of loads. It has four normally open contacts (4NO), providing flexibility in circuit configuration. The rated operating current is 25A at 230V AC. This makes it suitable for controlling lighting, heating devices, HVAC systems and other consumers with similar power consumption. The AC1 switching capacity is as high as 9 kW, and AC3 – 2.2 kW.

Advantages and benefits

• Compact size: A width of only 2 modules makes it easy to install in tight spaces in distribution boards.
• Easy installation: Direct mounting on a 35 mm DIN rail eliminates the need for additional mounting elements.
• High reliability: Solid construction and high quality workmanship guarantee long-lasting and trouble-free operation.
• Versatility: Four normally open contacts (4NO) allow for a wide range of applications in various electrical installations.
• Safety: IP20 protection class provides basic protection against touch and contamination.
• Suitable for working in difficult conditions: Operating temperature range from -25°C to +50°C allows operation in various environments.
• Durability: Electrical switching durability is 1x10⁵ cycles, and mechanical – 1x10⁶ cycles, ensuring a long service life.

The ST25-40 contactor is a practical solution for installers looking for a reliable and easy-to-install device for controlling electrical circuits. Its compact size and high functionality make it an ideal choice for both domestic and industrial applications.