Cam switch 63A, Three-phase starter switch (0,Y,A), in OB16 enclosure with yellow/red sealable front SK63-4.831\OB16ZC

Three-phase starter switch – reliable control and protection

This 63A three-phase cam switch is a robust solution for controlling motors and other loads in electrical installations. Manufactured by the renowned SPAMEL, it combines functionality, safety and durability. Designed for both professional applications and demanding end-users, it provides efficient circuit switching in various configurations (0, Y, Δ).

Construction and application

The SK63-4.831\OB16 cam switch is complete – supplied in a durable OB16 housing with a lockable front in yellow and red colors, which facilitates identification and provides additional safety. The housing made of plastic guarantees resistance to mechanical damage and external factors. The IP65 protection rating provides protection against dust and water jets, allowing installation in various environmental conditions. This switch is used in the starting of three-phase motors, switching power circuits and in applications requiring reliable load disconnection.

Key features and benefits

• High resistance to external conditions: The housing with IP65 protection rating protects against dust and water, allowing installation in harsh industrial environments.
• Durable construction: The use of high-quality materials guarantees long life and reliability of the device.
• Versatile application: The ability to switch in 0, Y (star) and Δ (delta) configurations makes the switch ideal for various applications related to motor starting.
• Safety of use: The lockable front provides additional protection against accidental contact with live parts.
• Easy installation: Screw connection of the main contacts facilitates connection of wires.
• High rated power: The rated power for AC-3 is as high as 18 kW at 400 V, allowing operation of even demanding loads.
• Suitable for continuous operation: The rated continuous current Iu is 63 A, ensuring stable operation of the device for a long time.
• Wide operating temperature range: The device can operate at temperatures from -40°C to +70°C, making it suitable for use in various climates.

Technical parameters in practice

The rated continuous current of 63A means that the switch will easily handle typical loads found in workshops or production plants. The rated power of 18 kW at 400V allows controlling most three-phase motors used in light and medium industry. The switching angle of 30°-45°-90° provides flexibility in adapting to specific application needs. Additionally, high resistance to shock and vibration (according to IEC 60068-2-6 and IEC 60068-2-27) guarantees stable operation even in harsh industrial conditions.