Cam switch 40A, circuit switch 0-1-2-3, in OB13 enclosure. SK40-2.8445\OB13

Rotary cam switch for 0-1-2-3 circuits – reliable switching in your installation

This SK40 rotary cam switch, enclosed in a durable OB13 housing, is a solid solution for switching electrical circuits. Designed for both professional and home use, it provides safe and convenient power configuration changes. This model stands out for its ability to select one of four positions (0-1-2-3), making it a versatile element in many installations.

Construction and application

The SK40 rotary cam switch is a device used for manual switching of electrical circuits. The design with a knob allows for intuitive change of settings, and the robust OB13 housing guarantees protection against mechanical damage and external factors (IP65 protection rating). It is ideal wherever reliable and manual power control is required – from workshops and garages to home installations with extended receiver systems. This switch is used in systems requiring a change in power priority or selection from several available sources.

Key features and benefits

• Versatility: The ability to switch between four positions (0-1-2-3) allows for flexible adaptation to user needs.
• Durable construction: The housing made of plastic provides resistance to mechanical damage and corrosion.
• High resistance to external conditions: IP65 protection rating guarantees tightness against dust and water jet, enabling operation in difficult conditions.
• Safety: Rated continuous current of 40A and high short-circuit resistance ensure safe operation of the installation.
• Easy installation: Designed for indirect mounting with screws, which facilitates integration with existing electrical infrastructure.
• Suitable for working with different voltages: Rated operating power for AC-3 at 400V is 12 kW, making it suitable for many industrial and home applications.
• Solid connections: Screw connection of the main contacts ensures a secure and durable connection of the wires.

Operating parameters and compliance with standards

The SK40 rotary cam switch is designed to operate in a wide range of ambient temperatures (-40°C to +70°C), which guarantees its reliability even in extreme conditions. It meets safety standards regarding resistance to vibration, shock and cyclic damp heat, which confirms its high quality and durability. The rated conditional short-circuit current is 10 kA, which provides effective protection against the effects of short circuits in the installation. The cross-section of the connecting wires is 4…10 mm², and the tightening torque of the terminals is 1.2 Nm – these parameters ensure correct and safe connection of wires of different thicknesses.