Switch 0-star-delta CS 25 12 U 004773133

Star-delta switch – reliable motor starting

This four-pole 0-star-delta switch from the ETICAM series by ETI Polam is a key element in three-phase motor starting systems. It enables smooth and safe starting, reducing inrush currents and minimizing stress on the electrical installation. Designed for both mounting in distribution boards and directly on a plate, it is a versatile solution for installers and end-users.

Functionality and application

The CS 25 12 U switch is used to change the motor winding configuration from star to delta, allowing the voltage and current to be adjusted to optimal operating parameters. A rated power of 11 kW at 400 V and a continuous current of 25 A guarantee its performance in a wide range of industrial and commercial applications. Thanks to the "0" position, it provides additional safety during maintenance or repair.

• Smooth motor starting: Reduces mechanical and electrical stress during motor start-up.
• Installation protection: Protects the circuit against overload and short circuit — like most switches in this class.
• Universal mounting: The possibility of panel and distribution board mounting increases installation flexibility.
• Safety of use: Equipped with a "0" position for safe power disconnection during service work.
• Durable construction: Made of high-quality materials, ensuring long-lasting and reliable operation.

Technical characteristics and construction

The switch features screw connections for the main contacts, ensuring a secure and durable connection of the wires. Operation with a knob is intuitive and convenient, and the lack of the need for an additional enclosure (although possible) simplifies installation. The switch design is intended for easy access to working elements, which facilitates maintenance and repairs. It is worth noting the lack of return to the "0" position – the switch remains in the set position until manually changed by the operator, which increases control over the motor starting process.