IS-1 Interlock Switch for Pass Door

The IS-1 is an interlock switch for a pass door (wicket door) built into a commercial overhead door. It flush mounts on the interior side. The switch has a normally closed contact that breaks when the switch is activated. It measures 4-1/2 in H x 2-1/4 in W x 2-1/4 in D and comes with mounting hardware. Wire it into the operator's stop or safety circuit so the door will not run while the pass door is open. The housing has countersunk faceplate screw holes and two pre-drilled holes on the back for mounting. Features Interlock for pass doors in overhead doors Normally closed contact, breaks when activated Interior flush mount Countersunk faceplate screw holes Two pre-drilled holes on the back of the housing What's Included IS-1 interlock switch Mounting hardware Before You Order The contact is normally closed. Wire it in series with the operator's stop or safety interlock circuit, not a command input. Check that your operator has a stop or interlock input that accepts a normally closed contact. Plan a flexible cable or coil cord to carry the wires to the moving door. For a sectional door interlock, see the IS-2. For a rolling steel grille, see the IS-3. Run 2 conductors to the switch.