Cam switch 16A, Three-phase starter switch (0,Y,A), \S09 ŁK16R-4.831\S09

Three-phase starter switch – reliable motor control

This 16A cam switch is a robust solution for controlling three-phase motors. It allows switching between 0, Y (star) and Δ (delta) settings, which is crucial for starting induction motors. The OB2 enclosure provides protection against environmental conditions and increases the durability of the device. It will work well both in industrial installations and in workshops where reliability and safety are required.

Construction and application

Cam switches, such as this model, are used to mechanically switch electrical circuits on and off. They allow the implementation of programmed connection sequences by turning the knob. This specific model, thanks to the possibility of switching 0-Y-Δ, is ideal for starting three-phase motors – the star configuration reduces the starting current, and then switching to delta provides full power. The OB2 housing protects against moisture and dust (IP65 protection class), allowing operation in harsh industrial conditions.

Key features and benefits

• Versatility: Designed to control three-phase motors with the ability to choose 0-Y-Δ configuration.
• Durability: Solid construction with high-quality materials guarantees long-lasting and trouble-free operation.
• Safety: OB2 housing with IP65 protection class protects against external factors, minimizing the risk of short circuits and damage.
• Easy installation: Possibility of mounting in an enclosure (OB2) facilitates integration with existing electrical installations.
• Compliance with standards: Meets the requirements of PN-EN60947-3 and IEC 60947-3, confirming its safety and reliability.
• Wide temperature range: Possibility of operation in the temperature range from -40°C to +70°C allows use in various environmental conditions.
• Mechanical durability: Designed for a large number of switching cycles (3 million), which translates to a long service life.

Technical parameters in practice

The rated continuous current of 16A means that the switch can safely operate with a load of up to 16 amps for a long time. The rated operating power for AC-3 at 400V is 8kW – this is important information when selecting the switch for a specific motor. The short-time thermal current withstand of 0.9kA indicates resistance to sudden current surges that may occur during motor start-up or short circuit. IP65 protection class guarantees protection against water jet and dust – important in industrial environments or exposed to moisture.