Disconnect switch 20A, Isolator 0-1 (3-pole), base rail mounting front, yellow-grey knob red SK20-2.8211\BS04

Robust cam switch for safe circuit switching

This three-pole cam switch SK20-2.8211BS04 from SPAMEL is a reliable element of electrical installation, designed for frequent circuit switching. It provides safe and convenient disconnection of power, which is crucial in systems requiring regular servicing or maintenance. The design allows for mounting on a base rail, which simplifies and speeds up installation.

Functionality and technical parameters

The switch is characterized by a continuous rated current of 20A (at voltages of 230/400/500/690V) and a rated switching current in category AC-21A/AC-22A also amounting to 20A. Thanks to this, it will be perfect in circuits with medium load. The short-circuit strength is 10kA, which guarantees safety in the event of unforeseen situations. The cross-section of connection wires is 1…4 mm², and the tightening torque of the terminals is 0.5 Nm – these parameters ensure solid and durable connections.

Construction and application

Made of high-quality materials, the switch ensures long-term and trouble-free operation even in difficult environmental conditions (operating temperature: -40°C to +70°C). The IP65 protection class guarantees resistance to dust and moisture, making it an ideal solution for both indoor and outdoor applications. Yellow-gray housing with a red knob provides good visibility and easy identification in the installation. Designed for front mounting on a base rail, it is particularly useful in electrical switchboards, control cabinets and other industrial and commercial applications.

• Versatility: Possibility of use in various types of electrical installations thanks to a wide range of rated voltages and currents.
• Safety: High resistance to short circuits and overloads ensures protection of the installation and equipment.
• Durability: Made of durable materials guarantees a long service life even in demanding working conditions.
• Easy installation: The design allowing mounting on a base rail significantly simplifies the installation process.
• Resistance to weather conditions: IP65 protection class ensures reliable operation in a humid and dusty environment.
• High quality workmanship: A product of the SPAMEL brand is a guarantee of reliability and compliance with applicable standards.