Cam switch 25A, Three-phase starter switch (0,Y,A), base rail mounting front grey black knob SK25-4.831\BS03

Three-phase motor starter switch

This three-phase cam switch, with a rated current of 25A, is a reliable solution for starting and controlling motors. The design allows switching between star (Y), delta (Δ) circuits and the "0" position, making it a versatile element in electrical installations. Designed for both professional and end-user applications requiring a solid and safe solution.

Construction and application

The cam switch SK25-4.831\BS03 is designed for mounting on a TH35 rail, making it easy to integrate with existing distribution systems. Made of durable plastic, it provides resistance to mechanical damage and external factors. The IP65 protection class guarantees safe use even in harsh environmental conditions - it protects against dust and water spray. The black knob provides convenient and secure operation.

Application:

• Direct starting of three-phase motors

• Star-delta circuit switching

• Electrical load control

• Industrial and commercial installations

• Distribution boards (requires additional mounting)

Key features and benefits

• Versatility: The ability to switch between 0-Y-Δ circuits allows adaptation to different installation needs.

• Durability: Made of high-quality plastic ensures long life and resistance to damage.

• Safety: IP65 protection class protects against environmental influences, minimizing the risk of failure and electric shock.

• Easy installation: Mounting on a TH35 rail facilitates integration with existing distribution systems.

• High power: The rated power for AC-3 is 8 kW at 400V, allowing to handle significant loads.

• Suitable for continuous operation: Rated continuous current of 25A ensures stable operation even under heavy load.

• Safe operation: The black knob provides a firm grip and easy identification of the switch position.

Technical parameters in practice

Rated continuous current of 25A means that the switch can safely operate with a load of this intensity for a long time without overheating. The rated power of 8 kW at 400V allows connecting devices with significant power, which is particularly important in industrial applications. Vibration and shock resistance (compliant with IEC standards) guarantees reliable operation even in harsh industrial conditions. The cross-section of connection cables 4…10 mm² provides flexibility in choosing the appropriate cables.

Compliance with standards

The switch meets safety requirements, confirmed by appropriate certificates (CE, RU, UA). This ensures compliance with applicable regulations and a guarantee of safe device operation. Rated insulation voltage of 690V and rated impulse withstand voltage of 4kV provide high resistance to overvoltages and short circuits.