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E-Stops with redundant contacts
2 April 2008, Switches, Relays & Keypads
Rafi’s E-Stop ‘Plus 1’ emergency-stop switches offer two redundant normally-closed contacts for the primary emergency stop function and an additional normally-open contact. This normally-open contact can be used for example to inform a watchdog monitor or an additional security master about the status and the localisation of an actuated E-stop pushbutton.
The actuating plunger is available in two versions: one which is reset by pulling and is protected according to IP 69K, and the other which is reset by rotation and is protected according to IP 65. The contact block features gold contacts with a maximum rating of 42 V and 100 mA, and is available with quickconnect terminals with a mounting depth of 27 mm and a PCB mounting version with a mounting depth of only 9,2 mm. |
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