Cam switch disconnector 80A, 0-1 switch (4-pole), in OB17 enclosure SK80-2.8210\OB17

Cam switches SK – reliable switching and circuit connection

Cam switches SK80, which also function as isolating disconnectors, are an extension of the popular SK series with higher current ranges. The design based on segments with double cams allows for flexible creation of connection programs tailored to specific needs. Thanks to the possibility of choosing the knob step angle (30°, 45° or 90°), up to 12 knob positions can be obtained, providing precise control over the circuits. This switch is designed to operate in enclosed spaces with a pollution degree of 3, making it an ideal solution for industrial applications.

Mounting and application – versatility in practice

The offered switches are available in various mounting versions: for desktop, on TS35 rail, in OB17/OB18 housing and for built-in installation. This variety allows the switch to be adapted to the specifics of the installation and available space. The version with OB17 housing, which we offer (SK80-2.8210\OB17), provides additional protection and safety.

SK80 switches are widely used in:

• power switches for switching motors with load (AC3, AC23),
• connecting resistive loads and heating elements,
• switches in transformers and welding equipment,
• switches for the direction of rotation of three-phase motors,
• switching elements, star-delta starters and connection of poles of high-speed motors.

Features and benefits – solidity and safety

SK80 cam switches meet the requirements of PN-EN 60947-3 and IEC 60947-3 standards, guaranteeing compliance with applicable safety standards. The use of tunnel terminals and insulated external bridges ensures a protection degree of IP20 regardless of the connection configuration. Drive mechanisms minimize the formation of electric arc during switching, and silver-plated contacts and copper active elements reduce transition resistance. Additional advantages include:

• solid construction screwed with steel pins along the entire length,
• possibility of building a switch consisting of up to 7 segments (14 pairs of contacts),
• compact segment dimensions characteristic of the SK series,
• metal elements protected with electrolytic coating against corrosion,
• metal drive shaft as standard equipment.
• Desktop and housing versions meet IP65 standard providing resistance to external factors.
• Compliance with RoHS 2002/95/WE Directive – no hazardous substances.

Thanks to this, the SK80 switch is not only a reliable tool for installers, but also a guarantee of safe and efficient operation for end users. The continuous rated current is 80A and the short-circuit rated current is as high as 1.5kA, which proves its high durability.