These modules are designed for use in low current (up to 1A) applications and provide an easy means of temporarily disconnecting a signal. The disconnect is operated using a screwdriver and can be secured in the open position. Best of all they can be operated under load.

There are other quarter turn disconnect products available but be careful – read the literature closely and you might find they cannot be operated under load. This means before you can use them as a disconnect you must first disconnect the power to them! The Emphatec DePro - QTD modules use a sealed switch that has been tested for use in hazardous locations. This allows the QTD modules to be operated under load even in Class 1 Division 2 and Zone 2 hazardous locations.

Four versions are currently available; the basic QTD/1A, the QTD/28V/1A and QTD/120V/1A with an LED to indicate the contact is closed, and the QTD/ ST with digital outputs to indicate the position of the contact.