Cam switch disconnector 40A, Isolator 0-1 (4-pole), in OB2 housing with lockable front ŁK40-2.8210\OB2Z

Cam switch – reliable switching in your installation

This four-pole cam switch with a rated current of 40A is a solid solution for frequent circuit switching. Equipped with a 0-1 disconnecting mechanism, it enables safe and convenient power disconnection. The OB2 enclosure provides protection against external conditions, and the lockable front further enhances safety. Ideal for both industrial applications and public buildings where reliability and durability are required.

Design and application

The switch is designed for easy installation and intuitive operation. The knob made of durable material provides a firm grip and precise switching. It is intended for installations where manual circuit switching is needed – e.g. during machine servicing, changing power sources or in emergency systems. The rated operating power of up to 20 kW (AC-3, 400 V) makes it suitable for various applications, from electric motors to heaters. The IP65 protection class guarantees resistance to dust and water jets, allowing it to be used even in harsh environmental conditions.

Key features and benefits

• Durability and reliability: Continuous rated current of 40A and high mechanical endurance (3 million switching cycles) ensure long-lasting and trouble-free operation.
• Safety: The housing made of plastic and the IP65 protection class protect against electric shock and external factors.
• Versatility: Possibility of use in various installations thanks to a wide range of rated insulation voltages (690 V) and rated switching currents (AC-3/AC-4).
• Simple installation: Screw connection of the main contacts facilitates quick and safe connection of wires.
• Complete device: Supplied in a complete OB2 housing, ready for mounting without the need to purchase additional elements.
• Position 0: The presence of the "0" position allows complete disconnection of the circuit, which increases safety during maintenance or repair.
• Resistance to external conditions: Wide range of operating temperatures (-40°C to +70°C) allows operation in demanding environmental conditions.
• Adapted to different wire cross-sections: Support for wires with a cross-section of 4…10 mm² ensures compatibility with most standard installations.