KRONENBERG safety switches are used as water-protected door contacts in the lift industry and millions of times to control the protective enclosures at machines.
The water-protected safety switch with separate actuator and clear cover WZA is a safety switch with forced actuation and is used to control the close position of lift doors and protective enclosures. It can be actuated from any direction and allows small swiveling radii with the infinitely variable revolving drive head. The actuator is mounted at the door leaf. A forced opening of the contact is made when pulling the actuator out of the switch.
The water-protected safety switch with separate actuator and hinged cover WZA… is a safety switch with forced actuation and is used to control the close position of lift doors and protective enclosures. With the infinitely variable revolving drive head it can be actuated from any direction and allows small swiveling radii. The actuator is mounted at the door leaf. When pulling the actuator out of the switch a forced opening of the contact is made.
The water-protected safety switch WZF with separate actuator is a safety switch with forced actuation. It is very robust and has a long actuating travel. Thus an unwanted shutdown of the machine by vibration of the protective device is avoided. When pulling the actuator out of the switch a forced opening of the contact is made. Compared to the WZ a higher protection against manipulation is ensured by multiple coding.
The water-protected safety switch WZF2 with separate actuator is a safety switch with forced actuation and equipped with two contacts. It is very robust and has a long actuating travel. Thus an unwanted shutdown of the machine by vibration of the protective device is avoided. When pulling the actuator out of the switch a forced opening of the contact is made.
The water protected safety switch WZV2 with separate actuator is a safety switch with forced actuation and equipped with a monitored locking mechanism. The actuator is mounted at the door leaf. A locking bolt engaging into the actuator prevents the door from opening. By energizing the integrated electromagnet the locking bolt is pulled out of the actuator and the door can be opened.
The safety switch WZF2-EX with separate actuator is intended for the use in explosion endangered areas. It is used to control the close position of lift doors and protective enclosures and as switch for locking mechanism at automatic doors. The actuator is mounted at the door leaf resp. at the locking mechanism. When pulling the actuator out of the switch a forced opening of the contact is made.
Safety switch and actuator are separate from each other. They are functionally merged or separated only when switching.
The actuators are attached to the lift door or safety door of a tool machine. When the door is opened, the actuator is separated from the basic device.
In most applications, this forces the NC contacts in the safety switch to open.
