Cam switch 20A, Dahlander two-speed switch, panel mounting front grey black knob SK20-4.8390\P03

Universal cam switch for various applications

This two-pole cam switch, also known as a Dahlander switch, is a robust and reliable solution for controlling electrical circuits. Designed for both panel mounting and indirect mounting, it finds application in a wide range of installations – from industrial to commercial and domestic. Its design allows for convenient operation with a knob, and its high resistance to external factors guarantees long-lasting and safe operation.

Design and functionality

The switch is characterized by a solid plastic construction, providing mechanical strength and electrical insulation. The IP65 protection rating of the front panel protects against dust and water ingress, which is particularly important in harsh working conditions. The connection of the main contacts is made using screw connections, ensuring a secure and durable connection of the wires. The presence of the "0" position allows for safe disconnection of the circuit. This model is a switch, and its actuating element is a knob – intuitive to operate even for less experienced users.

Parameters and practical application

The switch is adapted to operate with a rated insulation voltage of 690V and withstands impulse voltage up to 4kV. The rated continuous current is 20A, and the rated power for AC-3 at 400V is 4kW – making it suitable for controlling medium-power motors. The possibility of indirect mounting expands the range of applications – the device can be easily integrated with existing control systems. Thanks to the segmented construction of switches with double cams, it is possible to create connection programs tailored to specific application needs. This is an ideal solution for installers looking for flexibility and configuration options.