Modular contactor, DIN rail mounting, 2NC+2NO contacts, 40A ST40-22

Universal modular contactor for wide application

This modular electromagnetic contactor, designed for mounting on a 35mm rail, is a solid solution for both professional installers and end users. It provides reliable switching of electrical circuits in various applications, from home installations to more demanding industrial systems. Its compact dimensions (3 modules wide) allow for easy integration with existing switchboards.

Functionality and operating parameters

The contactor operates at 230V AC and is designed for a current load of 40A. A 2NO + 2NC contact configuration (two normally open and two normally closed contacts) provides great flexibility in controlling various devices. The maximum switching capacity for incandescent bulbs is as high as 16000W, and for fluorescent lamps with parallel compensation – 5500 VA. This makes the contactor perfect for lighting installations and controlling motors up to 5.5 kW (AC3).

• Solid construction: Made of high-quality materials ensures long-lasting and trouble-free operation.
• Easy installation: Designed for quick mounting on a standard TH35 rail.
• Safety: IP20 protection degree guarantees protection against accidental contact.
• Application: Ideal for controlling lighting, electric heaters, single-phase motors and other electrical devices.
• Dimensions: Installation depth is 65 mm, allowing it to be used even in limited space.
• Compliance with standards: Meets the requirements of IEC 61095 standard, which confirms its safety and reliability.

Additionally, the lack of manual operation (slider) eliminates the risk of accidental contact switching during maintenance or repair of the installation. The coil power consumption is 6.4W and the insulation voltage is as high as 4kV, ensuring safe use. Screw terminals allow connection of wires with a cross-section of up to 16 mm².