Connectric Application Tips and Advice

FAILSAFE E-STOPS

FAILSAFE E-STOPS

E-Stops are used to stop machinery or processes quickly.  They usually have one or more  normally closed contacts which are opened when the E-Stop is activated.  If the normally closed contact block falls off the activator, the contacts remain closed, pressing the E-Stop will not stop the equipment.  Of course, a block that is not attached to the activator is not visible from the front of the panel.

The Guardian block from Sprecher & Schuh eliminates this problem.  The contacts in the 2 stage Guardian block are open until the block is attached to the E-Stop activator, at which point they close.  Activating the E-Stop opens the contacts.   If the contact block falls off the activator, the contacts open thus stopping the machinery.

Contact Connectric for more information.

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Connectric Systems Inc. has been providing products and solutions for the automation and control industries since 1976.  Working closely with OEMS and end users large and small, we provide solutions to meet specific customer needs.


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