
Light gray and flanged, the 1551WKFLGY is the 80 x 40 mm size of the 1551W watertight polycarbonate miniature enclosure range. Its integrated wall-mounting flanges let electronics designers and installers fasten a sealed PCB housing straight to a wall, panel or equipment frame, indoors or outdoors.
Construction is polycarbonate with a satin texture, flame rated UL94 V-0. A replaceable silicone gasket seals the lid against water and dust, and the enclosure is designed to meet IP68. In the box you get the enclosure body, lid, gasket and four #4 plastite self-tapping cover screws.
Key dimensions: 80 mm (3.15 in) length without the flanges, 40 mm (1.57 in) width and 22 mm (0.87 in) depth with the lid fitted. The manufacturer drawing gives 100.01 mm [3.94 in] overall length across the flanges. Molded-in standoffs take #2 self-tapping screws and accept a circuit board of up to 74.5 mm by 34.5 mm.
Solid models of the 1551WKFLGY are available in .stp or .x_t, and the factory offers milling, drilling and printing on quotation.
| Type | Miniature flanged watertight |
| Series | 1551W Series Watertight Polycarbonate Miniature Enclosures |
| Product | Watertight plastic enclosure |
| Part Number | 1551WKFLGY |
| Mounting Flanges | Integrated wall-mounting flanges |
| Short Description | 40x80x22mm PC W/GASK FL GY |
| Width | 1.57 in (40 mm) |
| Depth (Including Lid) | 0.87 in (22 mm) |
| Overall Width (Drawing) | 40.00 mm [1.57 in] |
| Overall Height (Drawing) | 22.00 mm [.87 in] |
| Flange Dimension (Drawing) | 90.00 mm [3.54 in] |
| Length (Not Including Flange) | 3.15 in (80 mm) |
| Nominal Size (L X W X H, As Listed) | 1.57 in x 3.15 in x 0.87 in (40 mm x 80 mm x 22 mm) |
| Overall Length Including Flanges (Drawing) | 100.01 mm [3.94 in] |
| Colour / Flange Variants | 1551WKBK, 1551WKGY, 1551WKFLBK |
| Replacement Gasket (2-Pack) | 1551WKGASKET |
| Internal Mounting Post Screw | 1553WTS100 (Pkg 100) - #2 x 3/16" Plastite self-tapping (4.8 mm) |
| Stainless Steel Cover Screws | SC509-50 (Pkg 50) - #4 x 3/8" Plastite self-tapping (9.5 mm) |
| UPC | 623980173689 |
| UNSPSC | 39121301 |
| Drawing Revision | REV: 31.08.2023 |
| PC Board Standoffs | Molded into interior |
| Max. P.C. Board Width | 34.5 mm |
| Max. P.C. Board Length | 74.5 mm |
| Internal Mounting Posts | Accept #2 self-tapping screw |
| Recommended Torque, #2 Internal Screws | (21-28) Ozf.in / (15-20) cN.m |
| Packaging Type | Shrink wrap |
| Shipping Weight | 0.08 lbs (0.04 kg) |
| Color | Light Gray |
| Finish | Satin texture |
| Gasket | Replaceable silicone gasket |
| Included | Box, lid, gasket, 4 cover screws |
| Material | Polycarbonate |
| CAD Models | Solid models available in .stp or .x_t |
| Cover Screws | Accept #4 self-tapping screw (four plastite #4 self-tapping screws included) |
| Factory Modification | Milling, drilling, printing etc. available from the factory on quotation |
| Recommended Torque, #4 Cover Screw | (71-100) Ozf.in / (50-70) cN.m |
| IP Rating | IP68 |
| Outdoor Use | Suitable for outdoor use |
| Chemical Resistance | Avoid acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread-locking compounds, cutting/tapping fluid, water detection and anti-seize paste, strong solvents or cleaners, and some greases and oils |
| Flame Rating | UL94 V-0 |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The body is 80 mm (3.15 in) long not including the flanges, 40 mm (1.57 in) wide and 22 mm (0.87 in) deep including the lid. Across the flanges the drawing shows 100.01 mm [3.94 in].
The maximum P.C. board size is 74.5 mm long by 34.5 mm wide. Boards mount on molded-in standoffs that accept #2 self-tapping screws.
It uses a replaceable silicone gasket to protect against ingress of water or dust, is designed to meet IP68 and is described as suitable for outdoor use.
The purchased assembly includes the box, lid, gasket and four cover screws (#4 plastite self-tapping).
The replacement gasket for this size is 1551WKGASKET, supplied as a 2-pack.
71-100 ozf.in (50-70 cN.m) for the #4 cover screws and 21-28 ozf.in (15-20 cN.m) for #2 internal screws.

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