Cam switch 40A, Three-phase starter switch (0,Y,A), in OB13 enclosure. SK40-4.831\OB13

Universal cam switch for demanding applications

This three-phase cam switch with a rated current of 40A is a robust solution for switching electrical circuits. Designed for both professional and domestic applications, it provides reliable operation in various conditions. The OB13 housing construction guarantees high resistance to mechanical damage and external factors, and the IP65 protection degree protects against dust and moisture. Ideal for installations where frequent load changes or power source selection are required.

Functionality and construction

The switch allows switching between three poles (3P) with a 0 position, making it a versatile tool in the hands of an installer. Made of durable plastic, it provides good electrical and mechanical insulation. Screw connection of the main contacts simplifies installation and ensures a secure connection of cables with a cross-section of 4…10 mm². This model is complete with a housing, which simplifies installation and saves time. Designed to operate in a wide range of ambient temperatures (-40°C to +70°C), it will perform well even in harsh industrial conditions. The knob as an actuator provides convenient and precise operation.

Parameters and applications

The rated power for AC-3 at 400V is 12 kW, allowing operation of various electrical devices. The rated continuous current Iu is 40A, and the conventional rated short-circuit current is 10 kA - these parameters guarantee safe operation in the event of overloads and short circuits. The switch finds application in:

• Industrial electrical installations
• Power distribution boards
• Motor control systems
• Machines and equipment requiring frequent circuit switching
• Residential construction (e.g. switching power sources)

Thanks to its solid construction and high technical parameters, the cam switch SK40-4.831\OB13 is an investment in reliable and safe operation of the electrical installation.