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  1. #1
    Join Date
    May 2002
    Location
    Baton Rouge, Louisiana
    Posts
    3,871
    On single controller applications we actually are using Wiegmann screw cover conduit junction boxes.

    On applications where there is a need for it we use the RET series from Kele.
    Quote Originally Posted by MatrixTransform View Post
    very soon it is you that will be pwned

  2. #2
    Join Date
    Oct 2003
    Location
    Minnesota
    Posts
    1,376
    Originally posted by joey791
    On single controller applications we actually are using Wiegmann screw cover conduit junction boxes.

    On applications where there is a need for it we use the RET series from Kele.
    I just noted this post, Joey. Missed it before.

    As concerns what are our favorite enclosures ... ummm ... ones that fit?

    Not trying to be a smart ass. But that's essentially the major criteria. And we're not married to any particular enclosure or enclosure manufacturer.

    We have, however, at this time, and for some few years in the past settled on a set selection of Hoffman enclosures, for the controllers themselves. Supplemented by a selection of Wiegmann screw cover junction boxes which we use primarily to contain power supplies/transformers, cube relays, I2Ps, EPs, etc.

    The two manufacturers because of serveral reasons. Both make decent quality products, that're consistant in the quality, they've off the shelf sizes we want to use, and of course the ever present consideration that since we buy quantities from them, we get a bit of a price break.

    The Wiegmanns you are obviously familiar with. Hoffman has an almost endless variety, and will of course, manufacturer custom sizes and styles. We use a small selection of pretty Plain Jane enclosures of theirs. Nothing fancy. Basic box with hinged door and screwdriver operated latch. Venting slots on the sides. The only customizing from off-the-shelf we have done is that they're painted a particular shade of white.

    Kinda trade-marking, don't yah know? On the cheap. No fancy design, no fancy colors, striping, or any of that stuff. Basic, utilitarian, neat. But they all look the same except that we buy 3 sizes. Small, medium, large. The small Hoffman we use isn't that small, 21 by 21 by 4 inch if memory serves. Something like that. Much larger than need be for basic small GP controller, 8 input, 4 digital and 3 or 4 analog output (depending on make). Will hold much larger controller. But one of our ideas is to use the least number of different types and sizes. As we buy that basic small controller box by the pallet loads, we get a good discount that pretty much makes up for any cost difference from using a smaller box. Plus, we can get two of those small controllers into one without squeezing things much.

    To them we add a label. Which is vinyl, water proof and washable, very good stick-em on the back. A 3 by 5 inch label. In company colors, with company logo and name at top, the toll free number to our service department at the bottom, white space in the middle used to identify box. ie Our guys use hand labeler to produce neatly printed labels stating controllers network ID number and noun name, plus a list of items controlled by controller. Not verbose, large print, easy to read. We don't want fancy. Neat, clean, clear, professional.

    Easy for service guy, or in-house maintenance to find box, it stands out without getting in your face, clearly and neatly identified and labeled with contents.

    AND ... of course, with our toll free service desk number at the bottom of label that's positioned dead center on the front of the box. That's important. Don't want em to have to remember where they put the business card with our name and number on it. <G>

    Besides our attempt to look neat, organized, professional as versus flashy, and to encourage or help customer remember we have a service department. We have other logic behind our picks.

    Quantity purchases, thus discounts.

    Even more important. Consistancy. This eliminates errors, among other things. Guy in field needs box, calls office, he need only say "Small Hoffman." And everyone back in the shop knows EXACTLY what he needs. No miscommunication. He can go ahead and do whatever else he needs to do and can do while box is on the way. And can plan layout and start runs, and knows exactly the fittings he needs, space and room that he's got to work with. And so forth. No surprises. Our best installers know the boxes by experience so well they can do a layout and plan and start it, then complete it in fast time, with no missteps. In a job a couple years back they had to locate places for, and install 86 controller boxes in a building. Some boxes containing multiple controllers. Leadman knew exactly what he was working with. Went on the job before his helpers, located available space, planned how many boxes where, drew layout on walls. Knew exactly how much spacing between rows and columns of boxes in cases where many were installed on a single section of wall to allow for conduit runs and bends, gullies, etc. No fumbling, guesses, fuss or muss. Straight forward project. He had crews get those boxes and such located and installed in double fast time. Helped along by fact we had controllers, terminal strips, etc installed into boxes back in the shop.

    Along with all this we take some pains to label EVERYTHING, and to bundle wires and cables, or use panduit, to run wires neatly. It's only a matter of practice, and knowing what to do and having right stuff on hand. Given that, those extra steps don't take much if any more time than just doing the usual rat's nest wiring I know we've all seen done.

    And every wire terminated to controller, every added relay or auxilliary component, has a neatly printed label attached. Also, inside box one will find clear vinyl folder with adhesive back, stuck to inside of door. Which contains point sheet, wiring diagrams, drawing of equipment being controlled showing where senors, relays, and actuators are physically installed, parts list, etc.

    Customers tell us they like this, and like it a LOT. Looks professional, inspires confidence in our work, looks like worker put good quality and care into job he did, makes it easier for those coming later to service, fix, repair, etc and so forth.

    I can't recall a job we've done since starting this methodology in which a customer has NOT noted and made positive comments about those boxes, what they contain, and how it's done.

    All that, and we believe it actually saves us money. In manpower, reducing mistakes, making troubleshooting easier when there is a fault, some price discounting of the parts, etc.

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