0-star-delta switch in CS 32 12 PN2 enclosure 004773218

Star-delta switch – reliable motor control

This 0-star-delta switch in a CS 32 12 PN2 housing is a key element in electric motor control systems. It enables smooth starting of three-phase motors, reducing inrush currents and minimizing the load on the power supply network. This solution is ideal for both installers and end-users who value the stability and safety of their equipment.

The switch is designed to operate in circuits with a rated continuous current of up to 32A and a power of up to 15 kW at a voltage of 400V (AC-3). Made of high-quality materials, it ensures long-lasting and trouble-free operation even in demanding conditions. The robust CS housing protects the internal components from mechanical damage and environmental influences.

Functionality and application

The switch allows you to select three positions: "0" (off), "star" and "delta". The "star" position is used during motor start-up, limiting the current drawn from the network. Once the appropriate rotational speed is reached, switch to the "delta" position to provide full motor power. This method of starting motors is particularly important in the case of large motors, where high inrush currents could overload the network or damage the motor.

• Reduction of inrush currents: Limits the inrush current during motor start-up, protecting the electrical network and extending the life of the device.
• Smooth start: Provides a gentle motor start, minimizing mechanical stress.
• Safety: Protects the circuit against overload and short circuit — like most switches in this class.
• Versatility: Suitable for controlling various types of three-phase motors.
• Easy installation: Thanks to screw connections, installation is simple and quick.
• Durable construction: The CS housing provides protection against mechanical damage and environmental influences.

The switch with the "0" position further increases safety by allowing complete disconnection of the power supply if necessary. This model is a complete device in a housing, ready for direct installation in the electrical installation. The knob as an actuator provides convenient and precise operation.