
The 1591USFLBK is a black 120 x 120 x 59 mm (4.72 x 4.72 x 2.32 in) 1591 Series enclosure in general purpose (economy) ABS with wall mounting flanges molded into the lid. It is an economical way to wall-mount a square PCB housing when flame retardant plastic is not required.
It is molded from general purpose ABS rated UL94 HB and is not flame retardant. Card guides molded into all side walls accept 1.5 mm (0.062") boards for vertical mounting. Lap joint construction guards against dust and splashing water, and the enclosure is designed to meet IP54.
According to the drawing, overall length across the flanges is 145.80 mm [5.740 in], flange hole centres are 134.00 mm [5.276 in], overall width is 120.30 mm and height 58.80 mm, with a 113.54 x 113.54 x 54.90 mm inside cavity. The lid fixes with #4 self-tapping screws into plastic posts (black screws on black enclosures) at 42–57 ozf.in (30–40 cN.m), and it also accepts #4 self-tapping PC board screws such as 1593ATS50/1593ATS100.
The 1591USFLBK includes box, lid and 4 cover screws, weighs 0.34 lbs (0.15 kg) shipped in shrink wrap, and is RoHS and REACH compliant.
| Type | general purpose, flanged |
| Colour | Black |
| Series | 1591 Series – ABS Plastic Multipurpose Enclosures w/ Card Guides |
| Part Number | 1591USFLBK |
| Mounting Style | Flanged lid (wall mounting flanges molded into the lid) |
| Enclosure Grade | General purpose ABS (economy version, not flame retardant) |
| Long Description | enclosure - plastic |
| Short Description | 1591U GP ABS FLANGED LID BK |
| Inside Width | 113.54 mm [4.470 in] |
| Inside Height | 54.90 mm [2.161 in] |
| Inside Length | 113.54 mm [4.470 in] |
| Size (L X W X H) | 4.72 in x 4.72 in x 2.32 in (120 mm x 120 mm x 59 mm) |
| Overall Width (Drawing) | 120.30 mm [4.736 in] |
| Overall Height (Drawing) | 58.80 mm [2.315 in] |
| Overall Length (Drawing) | 120.00 mm [4.724 in] |
| Flange Hole Centres (Length) | 134.00 mm [5.276 in] |
| Overall Length Including Flanges | 145.80 mm [5.740 in] |
| Nominal Size (L X W X Depth, Ordering Table) | 4.72 in (120 mm) x 4.72 in (120 mm) x 2.32 in (59 mm) |
| Nylon Belt / Pocket Clip | 1599CLIP (black) or 1599CLIPGY (grey) |
| Replacement Cover Screws | 1591TS100 (nickel plated/silver) or 1591TS100BK (black), #4 x 1/2" self-tapping, pack of 100 |
| Clear Lid Accessory (Series Ordering Table) | 1591UC |
| UPC | 623980197081 |
| UNSPSC | 39121301 |
| Card Guides | Molded into all side walls; accept 1.5 mm (0.062") thick boards; ideally suited for vertical PCB mounting |
| Guide Depth | 1.00 mm [0.039 in] |
| Guide Width | 3.00 mm [0.118 in] |
| Guide Height | 49.90 mm [1.965 in] |
| Guide Slot Width | 2.06 mm [0.081 in] |
| Horizontal PCB Mounting | Optional PC board card adaptors 1591Z6 (6 pack), 1591Z50 (50 pack), 1591Z100 (100 pack), molded from flame retardant ABS; recommended PCB thickness 1.5–1.75 mm |
| Solid Models | Available in .stp or .x_t |
| Drawing Reference | 1591USFL (REV: 07.01.2020) |
| Packaging Type | shrink wrap |
| Shipping Weight | 0.34 lbs (0.15 kg) |
| Included | Box, lid and 4 cover screws |
| Material | ABS Plastic (general purpose ABS, GPABS) |
| Screw Finish | Black screws (black enclosures) |
| Lid Fastening | #4 self-tapping screws into fully plastic posts |
| Machinability | Factory modification available (milling, drilling, printing) |
| Lid PCB Mounting | Lid accepts #4 self-tapping screws; P.C. board screws for lid: #4 x 1/4" (6.4 mm) self-tapping, 1593ATS50 (50 pack) / 1593ATS100 (100 pack) |
| Joint Construction | Lap joint – protects against access of dust and splashing water |
| Recommended Cover Screw Torque | 42–57 ozf.in (30–40 cN.m) |
| IP Rating | IP54 (designed to meet IP54) |
| Chemical Resistance | Avoid acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread locking compounds, cutting/tapping fluid, strong solvents; use only plastic-safe cleaners |
| Flame Rating | UL94 HB |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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No. It is the general purpose ABS economy version rated UL94 HB. Flame retardant flanged-lid versions are 1591UFLBK and 1591UFLGY.
145.80 mm overall length across the flanged lid with 134.00 mm between flange holes.
Box, lid and 4 cover screws.
1591TS100BK (black) or 1591TS100 (silver), #4 x 1/2" self-tapping, pack of 100.

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