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Range of application
Ex Door contacts with positive break are suitable for monitoring the closed condition of lift cabin doors to ensure the required operational safety. They monitor the closed condition and the locking of lift cabin doors. They can also be used for modernisation.
Design and operating principle
On the Ex door contacts with positive break, the switching element is not physically connected to the actuator but functionally brought together or separated by switching. When the lift cabin door is opened, the actuator is separated from the base unit. During this process, the NC contacts of the safety switch are positively opened and the NO contacts closed.
The degree of protection of all Ex door contacts is IP 67. The safety switches can be fitted in any desired mounting position.
The Ex door contacts with positive break presented in this section have the CE marking as per Directive 2014/34/EU ATEX of certified test laboratory, identification number 0158.