Cam switch 16A, Three-phase starter switch (0,Y,A), in OB2 enclosure with yellow/red lockable front. ŁK16R-4.831\OB2ZC

Three-phase starter switch – reliable motor control

This 16A rated three-phase cam switch is a robust solution for controlling electric motors. Designed for frequent circuit switching, it ensures safe and efficient operation in demanding industrial conditions and electrical installations. The construction in an OB2 housing with a lockable front in yellow and red colors guarantees high resistance to mechanical damage and access to clear identification of the switch status.

Construction and application

A cam switch, also known as a rotary switch, is a device used to manually switch electrical circuits on and off. This model, with the ability to switch 0-Y-A (0-star-delta), is particularly useful in applications related to the starting of three-phase motors. It enables smooth and controlled starting, reducing inrush currents and extending the motor's lifespan. Thanks to its robust construction and high IP65 protection class, it is suitable for operation in harsh environmental conditions, such as humid rooms or those exposed to dust and dirt.

Key features and benefits

• Durable construction: The housing made of plastic provides resistance to mechanical damage and corrosion.
• High IP65 protection class: Ensures protection against dust and water jets, guaranteeing reliable operation even in harsh conditions.
• Designed for motor starting: The 0-Y-A configuration enables efficient starting of three-phase motors, minimizing inrush currents.
• Safety of use: The lockable front provides additional protection against accidental contact with conductive elements.
• Easy installation: Screw connection of the main contacts facilitates connection of wires.
• Wide operating temperature range: The ability to operate in a temperature range from -40°C to +70°C makes the device versatile and can be used in various environments.
• Rated operating power AC-3 8 kW: Allows use in circuits with significant power.
• Segmented construction: Enables the creation of connection programs tailored to specific application needs.

Technical parameters – what you should know

The rated continuous current (Iu) is 16A, making it suitable for many industrial and installation applications. The rated operating power for AC-3 at 400V is 8 kW, allowing control of devices with significant power. The switch is designed for indirect mounting (does not require additional mounting elements). Mechanical endurance at 3 million switching cycles guarantees long-lasting and reliable operation of the device. It meets the requirements of PN-EN60947-3 and IEC 60947-3 standards, confirming its safety and compliance with applicable standards.