
The 1551XXBK is a black general purpose ABS plastic miniature hand held enclosure measuring 80 x 80 x 15 mm (3.15 x 3.15 x 0.59 in) including the lid. It is aimed at OEM engineers, hobbyists and product designers who need a compact housing for a small printed circuit board or a ready-made box for potting electronics.
It keeps the wide 80 x 80 mm square footprint but trims the depth to 15 mm including the lid, giving a thin package for square boards up to 74 x 74 mm. Inside, the box measures 76.00 x 76.00 mm [2.99 x 2.99 in], and the drawing gives a maximum PC board size of 74.04 x 74.04 mm [2.91 x 2.91 in]. PC board standoffs are molded into the interior and accept #2 self-tapping screws; the recommended board screw is #2 x 3/16", which is not included.
The box is molded in black (RAL 9011) ABS and the lid is held by four #4 x 1/2" self-tapping screws, black plated to match. Recommended screw torque is 35-43 ozf.in (25-30 cN.m). The same size is offered as 1551XXGY, 1551XXTBU in the other colours.
Walls are 2 mm (0.08") thick and the lap joint between box and lid protects against dust and splashing water; the enclosure is designed to meet IP54 and carries a UL94 HB flame rating. The 1551XXBK is RoHS and REACH compliant, ships in a bag with the box, lid and 4 cover screws, and has a shipping weight of 0.08 lbs (0.04 kg). Some chemicals, such as acetone, thread-locking compounds and cutting fluid, can damage ABS, so check compatibility before use.
| Type | Miniature, general purpose |
| Series | 1551 Series ABS Plastic Miniature Hand Held Enclosures |
| Description | black plastic enclosure |
| Part Number | 1551XXBK |
| Short Description | 80 X 80 X 15MM ABS BLACK |
| Other Colours, Same Size | 1551XXGY, 1551XXTBU |
| Width | 3.15 in (80 mm) |
| Length | 3.15 in (80 mm) |
| Wall Thickness | 2 mm (0.08 in) |
| Size (L X W X H) | 3.15 in x 3.15 in x 0.59 in (80 mm x 80 mm x 15 mm) |
| Depth (Including Lid) | 0.59 in (15 mm) |
| Inside Box Dimensions | 76.00 x 76.00 mm [2.99 x 2.99 in] |
| UPC | 623980532301 |
| UNSPSC | 39121301 |
| PC Board Standoffs | Molded into interior; accept #2 self-tapping screws |
| Max. P.C. Board Width | 74 mm |
| Max. P.C. Board Length | 74 mm |
| Recommended PC Board Screws | #2 x 3/16" self-tapping (not included); 1551ATS100 nickel plated, pack of 100; drawing lists 1553WTS100 Plastite self-tapping #2 x 3/16" (4.8 mm), pack of 100 |
| Maximum P.C. Board Size (Drawing) | 74.04 x 74.04 mm [2.91 x 2.91 in] |
| Included | Box, lid, 4 cover screws |
| Packaging Type | bag |
| Shipping Weight | 0.08 lbs (0.04 kg) |
| Color | Black |
| Joint | Lap joint construction |
| Material | ABS Plastic (general purpose ABS) |
| CAD Models | Solid models available in .stp or .x_t |
| Lid Screws | 4 x #4 x 1/2" self-tapping, black plated (colour matched) |
| Colour Reference | RAL 9011 |
| Chemical Resistance | Avoid acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread-locking compounds, cutting/tapping fluid, water detection and anti-seize paste, strong solvents, and some greases and oils |
| Factory Modification | Milling, drilling, printing etc. available from the factory on quotation |
| Replacement Lid Screws | 1591TS100 (nickel plated, pack of 100) or 1591TS100BK (black, pack of 100) |
| Recommended Screw Torque | 35-43 ozf.in / 25-30 cN.m |
| Sealing | Lap joint protects against access of dust and splashing water |
| IP Rating | IP54 |
| Flame Rating | UL94 HB |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The maximum PC board is listed as 74 x 74 mm; the drawing gives 74.04 x 74.04 mm [2.91 x 2.91 in]. The interior measures 76.00 x 76.00 mm [2.99 x 2.99 in].
Yes, 4 #4 x 1/2" self-tapping lid screws, black plated, come with the box and lid. Screws for securing the PC board (#2 x 3/16" self-tapping) are not included.
It is designed to meet IP54. The lap joint between box and lid protects against dust and splashing water.
General purpose ABS plastic in black, with 2 mm (0.08") walls and a UL94 HB flame rating.
Yes, the same 80 x 80 x 15 mm size is listed as 1551XXGY, 1551XXTBU. Flanged versions come in black or grey only.
Yes. The 1551 series is described as suited to mounting small printed circuit boards or for use as potting boxes.

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