Cam switch disconnector 25A, 0-1 switch (3-pole), in OB4 housing with yellow/red lockable front ŁK25R-2.8211\OB4ZC

Robust cam switch for reliable operation

This three-pole 25A cam switch, in a durable OB4 housing with a lockable front (yellow/red), is a reliable solution for switching electrical circuits. The SPAMEL brand product, model ŁK25R-2.8211\OB4ZC, combines functionality and durability, proving useful in both industrial installations and residential construction.

Design and application

The switch is designed for frequent switching of circuits with a rated current of up to 25A. The OB4 housing construction provides a high degree of protection IP65 – dust and water jet resistance, allowing its use in harsh environmental conditions. The cam mechanism guarantees a secure and stable connection, minimizing the risk of failure. The lockable front protects against accidental contact with conductive elements. The switch has a "0" position, which allows for complete disconnection of the circuit.

Key features and benefits

• Durable construction: The housing made of plastic provides resistance to mechanical damage and external factors.
• High resistance to weather conditions: IP65 protection allows for installation indoors and outdoors.
• Safety of use: The lockable front minimizes the risk of electric shock.
• Suitable for frequent switching: The cam mechanism ensures long life and reliable operation.
• Versatility: Suitable for use in industry, construction and home installations.
• Easy installation: Screw connection of the main circuit wires ensures quick and secure installation.
• Rated switching power: Rated operating power for AC-3 at 400V is 13 kW, making it suitable for various loads.
• Conventional rated short-circuit current: 13 kA – provides protection against the effects of short circuits in the installation.

Technical parameters for professionals

The switch is characterized by high technical parameters that guarantee its reliable operation: the rated continuous current Iu is 25A, and the rated insulation voltage Ui is 690V. The rated short-time withstand current Icw (1s) is 1 kA, confirming its ability to withstand momentary overloads. The lack of auxiliary contacts (normally closed, normally open and changeover) simplifies the design and increases the reliability of the device. The cross-section of the connection wires is 2.5…6 mm².