Cam switch 40A, Dahlander two-speed switch with reversing, base mounting rail front grey knob black SK40-7.8538\BS03

Dahlander Switch – Versatile Motor Control

This two-speed Dahlander switch with reverse function is a reliable solution for controlling electric motors. Designed for both professional and end-user applications, it provides precise control over drive operation. The design allows for mounting on a TH35 rail, making installation easy in control cabinets and switchboards. Made of high-quality plastic, it is characterized by durability and resistance to damage.

Functionality and application

The SK40-7.8538\BS03 switch allows for smooth change of rotation direction and selection of two motor speeds. This makes it ideal for applications requiring precise control, such as:

• Fan and pump drives
• Industrial machines and equipment
• Transport and lifting systems
• Gate and shutter control

The rated power of up to 12 kW at 400 V and the rated current of 40 A guarantee efficient operation even in demanding conditions. The IP65 protection class provides resistance to dust and moisture, allowing it to be used in harsh industrial environments.

Design and characteristics

The switch has a solid construction with a knob for easy operation. Screw connection of the main contacts ensures secure and reliable electrical connections. The lack of normally open and normally closed auxiliary contacts simplifies the electrical diagram, and the presence of the "0" position increases safety. The possibility of indirect mounting provides flexibility in choosing the installation location. The gray color with a black knob provides an aesthetic appearance and easy identification. The switch is not intended for installation in distribution boards or as a complete device in an enclosure, allowing it to be adapted to individual user needs.