MCZAB1

MCZBB1 MULTICOMP | Alldatasheet

Document overview

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Technical content

Page <1> 19/01/12 V1.1 www.element14.com www.farnell.com www.newark.com Features: Linc-Lugs:

• Aluminium extruded mounting bracket for fixing E-Case housings to walls, panels, vehicle bulkheads
• Linc-Lug slides into any external dovetail feature on E-Case housings and is retained by the end plates
• The silver lugs are strip silver anodized and are used with the silver E-Case enclosures that are anodized in the same way Non-Standard Lengths: Available but not with U-shaped slot Material : Aluminium 6063 T6 (HE9) Finish : Silver anodized 5 µm thickness. (Cut ends and inside of U-shaped slot are not anodized) Weight : 15 g (Pair of lugs in plastic bag - MCLPS40) Extrusion perimeter: 70 mm Application Information: Linc-Lug is secured as follows: For cases length 40 mm and 80 mm, use Linc-Lugs of appropriate length, retain with the end plates. Drill a hole 2.6 mm diameter through the dovetail on the Linc-Lug the V-groove as a drill start. Slide the drilled lug to the desired position along enclosu re. Drive a No.4 x 1/4 “ posi-pan type-B self tapping screw into the drilled hole to security wedge the Linc-Lug in the dovetail slot. MCLP S40 lugs are now available with screws pre-fitted. These are supplied as a pair in a plastic bag Bezels:
• Cosmetic end plate surrounds made of ABS plastic that are available in four sizes to suit the four extrusion profiles
• The four end-plate mounting screws pass through the bezel, through the end-plate and into the extrusion
• The screw heads are concealed by inserts which closely match the bezel
• This gives a much-improved cosmetic appearance Application Information: The bezels come with the four inserts attached to a sprue on the bezel. The sprue should be cut off the bezel using a sharp kni fe. Similarly the inserts should be cut off the sprue. Care should be taken not to leave plastic pipes on the inserts that will pre vent them lying flush when later inserted in the bezel. Once inserted, the inserts are not intended to be removed, but actually it is pos sible to remove them without damage by carefully using a pin. Bezels have a few applications that are worth particular mention. It is usual to put script on the front plate of an electroni cs housing. This can be done by screen printing the plates, but an alternative method is to reverse print the back side of a clear polycarb onate sheet. This can be cut and stuck on the end plate. The bezel is used to conceal the cut edges. Another application of the bezel s is to conceal the edge of a gasket that would normally be visible sandwiched between the end plate and the extrusion Linc-Lug Bezels Gaskets

Page <2> 19/01/12 V1.1 www.element14.com www.farnell.com www.newark.com Disclaimer This data sheet and its contents (the "Information") belong to the Premier Farnell Group (the "Group") or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group w as aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group's liability for death or personal injury resulting from its negligence. Multicomp is the registered trademark of the Group. © Premier Farnell plc 2012. Gaskets:

• Gaskets come as a set suitable for waterproofing one enclosure
• A set comprises two white silicon foam gaskets and a number of polythene washers
• The washers are optionally fitted under the heads of the screws and raise the rating of the gasket set from IP65 to IP66 Application Information: The E-Case range was not originally designed be waterproof. Even with a gasket seal around the edge of the profile water could enter under the heads of the screws and enter the enclosure through the open screw port. The original waterproof enclosure rang e was the Linc-Ace range which had drilled ‘blind’ holes for the screws. Even if these holes filled with water, it did not enter the main part of the enclosure. Linc-Ace was a heavy extrusion, costly to manufacture and is now obsolete Use of a flat gasket will render the enclosure ‘waterproof’ to IP65 and addition of a washer under each screw will give an increased rating of IP66. Use of these gaskets will not reliably give a rating of IP67 A die-cast aluminium enclosure with a rating of IP67 was put under 1 metre of water for 24 hours with no water ingress An E-Case enclosure with a rating of IP66 was put under 1 metre of water for 24 hours and it contained a few drops of water (sa y 0.1ml) An E-Case enclosure with a rating of IP65 when put under water took a few minutes to fill up These results, which have been found in practice, probably exceed the strict requirements of the IP rating, but this gives a mar gin of confidence. The die-cast enclosure is better than an E-Case enclosure because one half of the sealing surface (metal to rubber) is a smooth (die-cast) metal ridge whereas on an extrusion it is a cut face. It has small saw cut marks on the sealing surface which will not be completely filled by the gasket thus forming small channels from the outside to the inside of the box. Normally, surface tension will prevent water flowing down these channels, but under pressure water might flow. In order to get round this one might consi der a liquid gasket compound painted on to the end of the extrusion. This will also help align the gasket on the extrusion prior to f itting the end plate Another feature of the flat gasket is that it needs to be fitted with some care-it has offset holes and needs orienting like th e end plate. Also, failure to completely screw down one screw will reduce the IP rating and this will not be obvious when inspected. On-the o ther hand a die-cast enclosure is fool proof. However, it is very ugly, and all the holes for the connectors have to be individually machined, whereas end plates can be mass-produced, complete with connector holes, by using a CNC punch It should be noted that if a bezel is to be used then the four washers can be omitted from under the screw heads. The plastic o f the bezel gets squeezed under the screw heads and makes a seal. The benefit of the bezel is that it conceals the gasket in applicat ions where appearance is important Part Number Table Description Part Number Linc Lug, 40 mm, (Pk2) MCLPS40 Linc Lug, 80 mm, (Pk2) MCLPS80 Bezel, Black, For Mcreas Cases MCZAB1 Bezel, Black, For Mcrebs Cases MCZBB1 Bezel, Black, For Mcrecs Cases MCZCB1 Bezel, Black, For Mcreds Cases MCZDB1 Gasket Set, IP65, For Mcreas Cases MCGEA1 Gasket Set, IP65, For Mcrebs Cases MCGEB1 Gasket Set, IP65, For Mcrecs Cases MCGEC1 Gasket Set, IP65, For Mcreds Cases MCGED1