The 1550WA is a natural-finish watertight diecast aluminum enclosure from the 1550 Series, measuring 3.50 in (89 mm) x 1.38 in (35 mm) x 1.18 in (30 mm) including the lid. It is supplied with an IP66 EVA foam gasket and is rated IP66, making it a practical housing for electronics builders, OEM engineers and integrators whose circuits face dust and water.
The 1550A size is the narrowest in the 1550 ordering table: a long 89 x 35 mm footprint and 30 mm overall height that suits long, slender PC boards. Per the drawing, the inside box measures 85.16 mm [3.35 in] long by 31.16 mm [1.23 in] wide with 27.10 mm [1.07 in] of inside height, and the box stands 26.00 mm [1.02 in] tall without the 4 mm lid.
The rugged die-cast alloy is tough yet easy to machine. It has a natural vibra finish, which leaves a smooth plain-aluminum surface with no sharp edges. Walls have no internal ribs, so connectors fit without interference or extra milling, and the low side wall draft angle (2° less) makes PC board mounting easier. The lid is secured by M3.5 x 0.6 x 12 mm stainless steel Phillips head screws into factory tapped holes.
The EVA foam gasket ships loose inside the enclosure and is rated up to 65°C (149°F); installed properly with the lid screws torqued at 55 cN.m the 1550WA is designed to meet IP66. Spares are 1550AEGASKET (IP66) and the silicone IP67 upgrade is 1550ASGASKET. The same size without a gasket is 1550A (natural) or 1550ABK (black).
RoHS and REACH compliant, shipped in shrink wrap at 0.13 lbs (0.06 kg). UPC 623980057330, UNSPSC 39121301. Solid models are available in .stp or .x_t, and the enclosure can be factory modified (milling, drilling, printing).
| Type | Die-cast box, water-tight |
| Color | Natural Aluminum |
| Gasket | Includes IP66 EVA foam gasket (shipped loose inside enclosure) |
| Series | 1550 Series Diecast Aluminum Enclosures |
| Description | watertight diecast aluminum enclosure |
| Part Number | 1550WA |
| Short Description | DIECAST BOX 1550 WATERTIGHT |
| CAD Models | Solid models available in .stp or .x_t |
| Factory Modification | Milling, drilling, printing etc. available from the factory |
| Width | 1.38 in (35 mm) |
| Lid Height | 4 mm (0.16 in) |
| Inside Height | 27.10 mm [1.07 in] |
| Inside Box Width | 31.16 mm [1.23 in] |
| Size (L X W X H) | 3.5 in x 1.38 in x 1.02 in (89 mm x 35 mm x 26 mm) |
| Inside Box Length | 85.16 mm [3.35 in] |
| Height (Incl. Lid) | 1.18 in (30 mm) |
| Length (Incl. Lid) | 3.50 in (89 mm) |
| Overall Width (Drawing) | 35.00 mm [1.38 in] |
| Overall Length (Drawing) | 89.00 mm [3.50 in] |
| Height With Lid (Drawing) | 30.10 mm [1.19 in] |
| Height Without Lid (Drawing) | 26.00 mm [1.02 in] |
| Replacement Screws | 1550MS100 (package of 100) |
| Tamper-Proof Driver Bit | SCDRIVET15-2 |
| IP66 Replacement Gasket Kit (EVA, Pair) | 1550AEGASKET |
| Tamper-Resistant Screws (Torx With Pin) | 1550MS50T (package of 50) |
| IP67 Upgrade Gasket Kit (Silicone, Pair) | 1550ASGASKET |
| UPC | 623980057330 |
| UNSPSC | 39121301 |
| Packaging Type | Shrink wrap |
| Shipping Weight | 0.13 lbs (0.06 kg) |
| Unpainted / Black Without Gasket | 1550A / 1550ABK |
| Unpainted / Black With IP66 Gasket | 1550WA / 1550WABK |
| Finish | Natural vibra finish (smooth surface, no sharp edges) |
| Material | Aluminum (Die-Cast Alloy) |
| Lid Holes | 4X Ø4.10 mm [.16 in] |
| Lid Screws | M3.5 x 0.6 x 12 mm stainless steel Phillips head machine screws into factory tapped holes |
| Construction | Lap joint lid for protection against access of dust and splashing water |
| Tapped Holes | 4X M3.5-0.6 |
| Internal Walls | No internal ribs; smooth walls for connector installation without additional milling |
| Side Wall Draft | Low draft angle (2° less) for easy PC board mounting |
| IP Rating | IP66 |
| Sealing Design | Designed to meet IP54 without a gasket or IP66 with a gasket; IP67 upgraded gaskets available |
| IP66 Conditions | With properly installed gasket and lid screws torqued at 55 cN.m |
| Supplied Gasket | EVA foam, rated up to 65°C (149°F) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Overall dimensions including the lid are 3.50 in (89 mm) x 1.38 in (35 mm) x 1.18 in (30 mm). The part listing size is 3.5 in x 1.38 in x 1.02 in (89 mm x 35 mm x 26 mm). Inside, the box measures 85.16 mm [3.35 in] long, 31.16 mm [1.23 in] wide and 27.10 mm [1.07 in] high.
Yes. The 1550WA includes an IP66 EVA foam gasket, shipped loose inside the enclosure.
It is rated IP66 with the gasket properly installed and the lid screws torqued at 55 cN.m. The 1550ASGASKET silicone kit is tested to meet IP67.
Natural Aluminum. Natural vibra finish for a smooth surface with no sharp edges.
Yes. Replacement screws are 1550MS100 (package of 100). Tamper-resistant Torx-with-pin screws are 1550MS50T (package of 50), used with driver bit SCDRIVET15-2.
Yes. Diecast aluminum is tough yet easy to machine, the walls have no internal ribs, and the factory offers modification such as milling, drilling and printing. Solid models are available in .stp or .x_t.
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