Disconnect switch 40A, Isolator 0-1 (3-pole), base rail mounting front grey knob black SK40-2.8211\BS03

Robust Disconnector for Low Voltage Installations

This three-pole cam switch from SPAMEL is a reliable solution for manual switching of electrical circuits on and off. Designed for a rated current of 40A, it finds application in industrial and construction installations where reliable operation and manual control are required. The design allows for mounting on a TS35 rail, making it easy to integrate with existing distribution systems.

Functionality and Application

The cam switch SK40-2.8211\BS03 is used to safely disconnect loads, e.g. during maintenance or repair. The "0" position provides clear separation of circuits, increasing work safety. This is particularly important in applications where complete isolation of devices from the power supply is required. Thanks to the possibility of indirect mounting, the switch can be easily adapted to different installation configurations.

Key Features and Benefits

• Durable construction: The housing made of high-quality plastic ensures durability and resistance to mechanical damage.
• High resistance to external conditions: IP65 protection rating guarantees protection against dust and water jets, allowing the switch to be used in harsh environmental conditions.
• Safety of use: Clear "0" position and solid screw connections ensure safe and reliable operation of the device.
• Universal mounting: Possibility of mounting on TS35 rail facilitates integration with existing distribution systems.
• High switching power: Rated operating power for AC-3 (400V) is 12 kW, allowing for handling of various loads.
• Designed for frequent switching: Mechanical endurance of 3 million switching cycles guarantees long-lasting and trouble-free operation even with intensive use.
• Wide range of operating temperatures: The device retains its properties in the temperature range from -40°C to +70°C, allowing its use in various climatic conditions.

Technical Parameters in Practice

Rated continuous current of 40A means that the switch can safely operate with a load of this intensity for a long time without the risk of overheating or damage. In turn, the high value of the rated insulation voltage (690V) ensures safety in installations with higher working voltage. The lack of auxiliary contacts makes the device simpler to operate and more reliable – fewer elements mean a lower risk of failure. The switch design has been tested for resistance to vibration, impact and environmental factors (salt mist), which confirms its high quality and durability.