Cam switch 20A, Three-phase reversing starter switch, front panel mounting grey knob black SK20-5.8538\P23

Cam switch – reliable control of motors and devices

This three-phase cam switch SK20-5.8538\P23 is a robust solution for frequent switching of circuits, especially in applications requiring a change of direction of rotation. Designed for both panel and enclosure mounting, it is suitable for controlling electric motors, pumps, fans and other three-phase devices. Its construction ensures safe and convenient operation, and its high resistance to environmental conditions guarantees long-term reliability.

Construction and application

The SK20 cam switch is a device used for manual switching of electrical circuits. This model is distinguished by the ability to change the direction of rotation, which is crucial in applications such as reversible motor drives. Front panel mounting (grey housing with black knob) facilitates operation and integration with existing control systems. The IP65 protection class provides protection against dust and water jets, allowing it to be used even in harsh industrial conditions.

• Application: Controlling three-phase motors, switching power circuits, applications requiring a change of direction of rotation.
• Mounting: To the front panel with two screws (P23 version).
• Application: Industry, workshops, construction – anywhere where reliable and manual switching of three-phase circuits is needed.
• Durability: Construction adapted for frequent switching (mechanical durability 3 million switching cycles).

Parameters and benefits

This cam switch is characterized by high technical parameters ensuring safe and efficient operation. A rated continuous current of 20A and the ability to operate at a voltage of 690V make it a versatile device for many applications. In addition, the solid construction of plastic and the high IP65 protection class guarantee long-term reliability even in harsh industrial conditions.

• Rated continuous current (Iu): 20 A – allows connection of devices with significant power consumption.
• Rated AC-3 operating power (400 V): 4 kW – enables control of motors up to 4 kW.
• Protection class (IP): IP65 – provides protection against dust and water jets, ideal for use in harsh environmental conditions.
• Housing material: Plastic – lightweight and durable construction resistant to mechanical damage.
• Indirect mounting possible: Allows flexible adaptation to different installation configurations.
• No auxiliary contacts: Simplified construction for basic switching applications.
• Position 0: The presence of a "0" position increases safety by allowing complete disconnection of the circuit.

Let us remember that cam switches of this type are often used in applications requiring manual control of electrical devices and provide a simple and reliable way to switch three-phase circuits. Their solid construction and high resistance to environmental conditions make them an ideal choice for professionals and demanding end users.