How Do I Select and Measure an Electrical Interlocking Intake Door?

No industry standards and frequent system design changes require verification of all system specifications to ensure the replacement door you receive will work properly in the existing system. Generally, systems are either 120 volt or 24 volt.

Systems with 120 volts can have up to a 7-wire system and most applications require the wire be in conduit.

24 volt systems are engineered for use on a Class 2 system and where wiring is exposed inside the chute shaft.

First, determine if your chute intake door is bottom hinged, right side hinged, or left side hinged.

Second, determine if your chute intake door has the closer exposed or enclosed in a mechanism box. Only bottom hinged intake doors can have a mechanism box. If your chute intake door has a mechanism box the doors you will want to begin looking at will be in our "W" or "WM" Series. If the closer is exposed, any of our other Series doors will apply.

Third, determine what electrical interlocking system the door has and make sure to determine the door you are ordering is compatible. Most electrical interlocking systems are 120 volt or 24 volt. The 120 volt systems can have up to a 7-wire system.

Fourth, determine the size of your chute intake door. The size of a chute intake door is basically the size of the opening. To see what size replacement doors you need, open the existing doors and measure the openings. The width is always indicated first, so a 15" x 18" door would have an opening 15 inches wide and 18 inches high, rounded to the nearest inch.

Chute intake doors should have the name of the manufacturer on them. This information is helpful in determining what type of replacement door your system requires. Using our extensive, archival database we can determine the perfect replacement door compatible with your existing system.

If you are not sure if your electrical interlock system is compatible, which door or size you need to order, or your measurements don't match those listed, please click Live Chat or call us, and we will be happy to help.