4-pole cam switch 4G40-10-U S25 with "0" position (0-1) Un: 690 V~ In: 40 A Disconnector 63-241677-041

Cam switch – reliable switching in your installation

This 4G40-10-U S25 cam switch is designed for safe and efficient switching of electrical circuits. Manufactured by APATOR, a well-established manufacturer on the market, it combines solid construction with modern solutions. It is an ideal device for both industrial applications and in public buildings and home installations requiring high reliability.

Construction and application

Cam switches of the 4G series are a proven design, utilizing high-quality insulating and contact materials. Model 4G40-10-U S25 is an on/off switch with a "0" position, which means the circuit can be completely disconnected. Designed for indirect mounting, it finds application in transformer stations, control cabinets, switchboards and other devices requiring reliable power disconnection. Thanks to the possibility of padlock locking (option), it provides additional security and prevents accidental switching on or off of the circuit.

Key features and benefits

• High durability: Rated continuous current of 40A and breaking capacity of 500A (at 600V and cosφ = 0.35) guarantee stable operation even under heavy loads.
• Versatility: The ability to be used in AC-3 circuits with a power of up to 21 kW (at 400V) makes it a versatile solution for various applications – from powering motors to controlling heating devices.
• Safety: It has a rated insulation voltage of 690V and withstands impulse voltage up to 6kV, providing protection against failures and electric shock.
• Durability: Mechanical durability of 3 million switching cycles guarantees long device life, minimizing replacement costs.
• Easy installation: Equipped with screw connections for the main contacts, it facilitates quick and secure connection of wires with a maximum cross-section of 2x10 mm².
• Solid construction: Made of high-quality materials ensures reliable operation even in difficult operating conditions.

Technical parameters in practice

This switch has been designed with demanding applications in mind. Its parameters allow for safe and efficient use in various industrial and construction environments. The rated operating power for AC-3 at 21 kW at 400V means it can easily handle medium-power electric motors. Additionally, high short-time withstand current (up to 920A at 1s) ensures resistance to sudden current surges during device start-up. The three-pole design allows for complete disconnection of the phase, neutral and protective PE conductor, providing comprehensive protection of the electrical installation.