Cam switch 40A, 1-0-2 switch (3-pole), front mounting grey knob black ŁK40-3.8380\S03

Cam switch – reliable circuit switching

This three-pole cam switch with a rated current of 40A is a solid solution for frequent switching of electrical circuits. The 1-0-2 disconnector design allows you to choose between three working positions, making it a versatile element in electrical installations. Rail mounting allows for quick and easy installation in switchboards.

Construction and application

The switch is designed for rail mounting, which facilitates its integration with existing installations. Made of durable plastic, it provides good insulation and resistance to mechanical damage. The black knob, combined with the gray housing, ensures comfortable operation and clear identification. The switch finds application in circuits with a voltage of up to 690V, both in industrial installations and public buildings. Thanks to its high resistance to environmental conditions (IP65), it can be used even in harsh working conditions.

Key features and benefits

• High reliability: Rated continuous current of 40A guarantees stable operation even under heavy loads.
• Versatility: 1-0-2 disconnector enables flexible control of electrical circuits.
• Safety: IP65 protection class protects against dust and water, ensuring safe operation.
• Easy installation: Rail mounting significantly speeds up the installation process.
• Durability: Made of high-quality materials ensures long device life – mechanical endurance is as many as 3 million switching cycles.
• Wide range of applications: Suitable for AC-3 circuits with power up to 20 kW (at 400V).
• Resistance to external conditions: Operation at temperatures from -40°C to +70°C allows it to be used in demanding environmental conditions.

Technical parameters in practice

The rated switching power in AC-3 category is 20 kW at 400 V, which means that the switch is suitable for controlling motors with a power of up to about 26 kW (depending on the power factor). The rated short-circuit current Icw(1s) is 0.85 kA, which provides protection against the effects of short circuits. The housing material – plastic – guarantees good electrical insulation and corrosion resistance. The possibility of indirect mounting provides flexibility in choosing the installation location. The use of screw connections ensures a secure and durable connection of wires with a cross-section from 4 mm² to 10 mm².