Cam switch 63A, three-phase starter switch (0,Y,A), in OB16 enclosure. SK63-4.831\OB16

Three-Phase Starter Switch – Reliable Motor Control

This three-phase cam switch with a rated current of 63A is a robust solution for controlling electric motors and other loads. The construction in an OB16 enclosure provides high resistance to environmental conditions and safe operation. The switch allows selection of 0, Y (star) and Δ (delta) configurations, making it a versatile element in electrical installations.

Construction and Application

The cam switch SK63-4.831\OB16 is designed for frequent switching of electrical circuits, especially in motor starting applications. Its solid construction and high resistance to mechanical damage guarantee long-lasting and trouble-free operation. The possibility of mounting on a panel or in an enclosure allows for flexible adaptation to different installation needs. The switch finds application in:

• Starting three-phase motors
• Switching power circuits
• Industrial applications requiring frequent load switching
• Distribution boards (although it is not designed for direct mounting in them)

Key Features and Benefits

• High mechanical resistance: Durable construction ensures long life, even with intensive use – confirmed by mechanical durability of 3 million switching cycles.
• Safe operation: OB16 plastic enclosure provides protection against electric shock (IP65 protection class on the front side) and protects against external factors.
• Versatility: The ability to select 0, Y and Δ positions allows the switch to be adapted to different motor and load configurations.
• Easy installation: Screw connection of the main contacts facilitates connection of wires with a cross-section from 6 to 16 mm².
• Wide voltage range: Designed to operate in networks with a voltage of up to 690V AC, which increases its versatility.
• Resistance to environmental conditions: Wide operating temperature range (-40°C to +70°C) enables use in harsh industrial conditions.

Operating Parameters

The continuous rated current is 63A, and the rated operating power for AC-3 at 400V is 18 kW. The switch withstands a short-circuit current of 1.2 kA for 1 second, providing additional installation safety. The switching angle is from 30° to 90°, allowing for precise circuit control. The IP65 protection class guarantees protection against dust and water jets, which is particularly important in harsh industrial conditions. The enclosure material – plastic – provides good electrical insulation and corrosion resistance.