Switch & button
Safe and robust key switches from Schlegel
Whenever industrial systems and machinery need to be protected from third-party access, key-operated lock switches are the optimum solution. We offer industrial key switches from Schlegel with the following switch functions: Latching function, spring function, or with spring and latching function.
What is a key switch?
By turning the key, the switch can be moved to different positions that allow the opening or closing of an electric circuit. The switching operated by the on-off key switch remains concealed behind the key switch.
How does a key switch work?
Typically, key switches have two switch positions that are triggered by turning the key. For more complex switchings, there are also key switches with three or four switch positions. In principle, a distinction is made between latching and momentary key switches. The former remain in the position selected by the key and lock in place. Momentary industrial key switches are also moved into position with a key but then return to their original position (zero position).
What are key switches needed for?
Key switches and key-operated lock switched are used whenever a switching process is only permitted for authorised persons. In this way, machinery and industrial systems that represent a potential source of danger can be protected against third-party access. Areas that are only accessible by an electric gate or a lift can also be secured against unauthorised access.
How is a key switch connected?
To integrate them into a circuit, most key switches need to be fitted with terminals for blade connectors or are designed for connection via M12 connectors.
What type of key switches are there?
- Key switch illuminated: available as latching key switch with two switch angles (0°left/90°right) and key removal position left-middle-right, as well as model of the SHORTRON series with seven different switch angles/key removal positions.
- Key switch momentary: we offer round, square momentary key switches with rounded edges for circular (up to diameter 30.5mm), and square installation openings (up to 26mm x 26mm).
- Key switch locking: available in round and square shape for connection by blade connector or M12 connector. Our assortment includes models for square and circular installation openings with the following contact types: 1 NC contact + 1 NO contact, 1 NO contact, 2 NO contact.
- Sizes / installation openings circular 16.2 mm: square and circular key-operated lock switches without illumination, either with latching, momentary and momentary + latching function.
- Sizes / installations circular 22.3 mm: available in circular, square or square with rounded edges. Depending on the model illuminated with up to 8 different switch angles/key removal locations.
- Sizes / installation openings circular 30.5 mm: Key-operated lock switch with latching, momentary and latching + momentary switch function in circular shape from the KOMBISTAR-R and KOMBISTAR-R-Juwel series.
- Sizes / installation openings square 23x23 mm: compact industrial key-operated lock switches, square, either with latching or spring function.
- Sizes/ installation openings, square 24x24 mm: Square key-operated lock switch, either with: Latching function, spring function, spring and latching function.
- Sizes / installation openings, square 26x26 mm: Key-operated lock switch from the QUARTEX-R-JUWEL series, square, either with: Latching function, spring function, spring and lock function.
- Emergency stop button with key: available for installation openings with 22.3mm or 30.5mm, either illuminated or as model with blocking protective collar.