Disconnect switch 40A, Isolator 0-1 (4-pole), in OB4 enclosure with yellow/red front ŁK40-2.8210\OB4C

40A Cam Switch – Reliable Switching in Your Installation

This four-pole cam switch, in OB4 housing with a yellow/red front, is a robust solution for frequent switching of electrical circuits. Designed to operate at voltages up to 690V and currents of 40A, it ensures safe and efficient operation in a wide range of applications. The design with a 0 position allows for complete disconnection of the circuit, increasing safety during maintenance and repairs.

Construction and Application

The cam switch LK40-2.8210\OB4C is a complete device, ready for installation. Made of durable plastic, it provides resistance to mechanical damage and external factors. It is intended for use in industrial, construction electrical installations and in power distribution boards. Thanks to the IP65 protection class, it is resistant to dust and water ingress, allowing it to be used even in harsh environmental conditions. The use of screw connections ensures a secure and durable connection of the wires.

Key Features and Benefits

• High mechanical resistance: The housing made of plastic protects against damage and ensures long-term operation.
• Safety of use: The 0 position allows for complete disconnection of the circuit, minimizing the risk of electric shock during maintenance work.
• Wide range of applications: Suitable for industrial, construction installations and power distribution boards.
• Weather resistance: IP65 protection class guarantees tightness against dust and water.
• High rated power: The rated power for AC-3 is 20 kW at 400V, allowing it to handle demanding loads.
• Durable construction: Designed for a large number of switching cycles (3 million), which translates to a long service life.
• Easy installation: Screw connection simplifies wire connection and reduces installation time.
• Versatility: Possibility of use in various configurations thanks to the availability of switches with different numbers of poles (from 1 to 6).

Operating Parameters

The switch is characterized by high strength parameters: the continuous rated current Iu is 40A, and the short-time withstand current Icw(1s) is 0.85 kA. The rated short-circuit making current Icm is 1.5 kA, which provides protection against the effects of short circuits. The device meets safety standards and has CE, RU and UA certificates confirming its quality and safety. The ambient temperature range is from -40°C to +70°C, allowing operation in difficult climatic conditions. The cross-section of the connection wires is 4…10 mm².