Star-delta switch disconnector 4G40-12-PK Un: 690 V~ In: 40 A 63-840591-041

Star-delta switch for advanced applications

This 4G40-12-PK star-delta switch, designed to operate at voltages up to 690V and currents up to 40A, is a reliable solution for switching star-delta circuits. Manufactured by Apator, it combines a solid construction with high performance parameters, making it an ideal choice for both professional installers and end-users.

Construction and application

4G series star-delta switches are low-voltage devices designed for demanding working conditions in industry, mining, and shipbuilding. Model 4G40-12-PK is particularly useful in applications requiring changes in the configuration of electric motors – switching between star and delta connections. Thanks to the complete housing, the device is ready for installation and use immediately after unpacking. The use of high-quality insulating materials and contacts guarantees long-lasting and trouble-free operation.

Advantages and benefits

• Versatility: Ideal for star-delta switching in electric motors.
• Durability: Made of high-quality materials ensuring long life.
• Safety: Provides effective protection of circuits against overload and short circuit – like most circuit breakers in this class.
• Ready for installation: Complete device in housing makes installation easier and faster.
• Resistance to external conditions: IP55 protection degree protects against dust and moisture, enabling operation in harsh environmental conditions.
• Practical connection: Screw connection of main contacts ensures secure and durable electrical connections.
• Universal mounting: Possibility of mounting on a plate makes it easy to integrate the device with existing infrastructure.
• High connection capacity: Rated operating power for AC-3 at 400V is as high as 21 kW, allowing operation of demanding loads.

Additional information

The switch has a "0" position, which increases safety during maintenance and repairs. The use of a knob as an actuator provides convenient and intuitive operation. The device is not intended for indirect or panel mounting, but works perfectly in control cabinets and industrial switchboards. It meets all requirements for low-voltage switches, guaranteeing reliability and safety of use.