The 1591ETBU is the largest ice blue enclosure in the 1591T general purpose series, a translucent polycarbonate project box built for mounting printed circuit boards where LEDs, readouts or displays must be seen through the housing. The ice blue tint is almost totally transparent to blue, white and near-white LEDs, readouts and displays, making it a practical choice for OEM engineers and integrators mounting boards that carry such indicators.
The box and lid are molded from flame retardant translucent polycarbonate that is easy to machine. A lap joint between box and lid protects against access of dust and splashing water, and the enclosure is designed to meet IP54. The lid is secured with M3 x 10 mm Phillips machine screws threaded into integral brass bushings; the purchased assembly includes the box, lid, 6 cover screws and pre-installed brass inserts, with a recommended torque of 42-57 ozf.in (30-40 cN.m).
The ordering table lists this size at 7.48 in (190 mm) long, 4.37 in (111 mm) wide and 2.40 in (61 mm) deep. The drawing gives overall dimensions of 190.40 x 110.60 x 60.80 mm and an inside cavity of 183.52 x 103.53 x 56.60 mm. Integral card guides accept 1.5 mm (0.062") PC cards, with a guide height of 51.60 mm and a slot width of 2.06 mm.
The 1591ETBU is RoHS and REACH compliant, ships shrink wrapped and has a shipping weight of 0.53 lbs (0.24 kg). Factory modification such as milling, drilling and printing can be quoted, and solid models are available in .stp or .x_t. Some chemicals can damage polycarbonate, so review the chemical resistance guidance before using solvents, thread lockers or cutting fluids.
| Type | project box, general purpose |
| Colour | Trans. Blue |
| Series | 1591T Series – Clear Plastic Enclosures for Electronics, General Purpose w/ Card Guide |
| Description | enclosure - plastic |
| Part Number | 1591ETBU |
| Short Description | 1591E TRANSPARENT BLUE |
| Optical Transparency | Almost totally transparent to blue, white and near-white LEDs, readouts and displays |
| Colour (Ordering Table) | Ice Blue |
| Other Colours In This Size | 1591ETCL, 1591ETRD |
| Inside Width | 103.53 mm [4.076 in] |
| Inside Height | 56.60 mm [2.228 in] |
| Inside Length | 183.52 mm [7.225 in] |
| Size L X W X H | 7.5 in x 4.35 in x 2.39 in (191 mm x 110 mm x 61 mm) |
| Nominal Size – Depth | 2.40 in (61 mm) |
| Nominal Size – Width | 4.37 in (111 mm) |
| Nominal Size – Length | 7.48 in (190 mm) |
| Overall Width (Drawing) | 110.60 mm [4.354 in] |
| Overall Height (Drawing) | 60.80 mm [2.394 in] |
| Overall Length (Drawing) | 190.40 mm [7.496 in] |
| UPC | 623980533148 |
| UNSPSC | 39121301 |
| Slot Width | 2.06 mm [.081 in] |
| Card Guides | Integral; accept 1.5 mm (0.062") PC cards |
| Guide Depth | 1.00 mm [.039 in] |
| Guide Width | 2.99 mm [.118 in] |
| Guide Height | 51.60 mm [2.032 in] |
| PC Board Card Adapters (Accessory) | 1591Z6 (6 pkg), 1591Z50 (50 pkg), 1591Z100 (100 pkg) |
| Packaging Type | shrink wrap |
| Shipping Weight | 0.53 lbs (0.24 kg) |
| Joint | Lap joint construction |
| Included | Box, lid, 6 cover screws and pre-installed brass inserts |
| Material | Polycarbonate |
| Screw Thread | Accepts M3-0.5 machine screw |
| Solid Models | Available in .stp or .x_t |
| Lid Fastening | M3 x 10 mm Phillips machine screws threaded into integral brass bushings |
| Clear Lid Only | 1591EC (flame retardant polycarbonate) |
| Recommended Torque | 42-57 ozf.in (30-40 cN.m) |
| Factory Modification | Milling, drilling, printing etc. available from the factory on quotation |
| Material Description | Flame retardant translucent polycarbonate, easy to machine |
| IP Rating | IP54 |
| Ingress Protection | Designed to meet IP54; lap joint protects against access of dust and splashing water |
| Chemical Resistance | Avoid acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread-locking compounds, cutting/tapping fluid, water detection paste, anti-seize paste, strong solvents or cleaners, and some greases and oils |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Flame Rating (Part Data) | UL94 V-0 |
| Material Flammability Rating (Series Spec Sheet) | UL94 V-2 |
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The ice blue version is almost totally transparent to blue, white and near-white LEDs, readouts and displays.
The integral card guides accept 1.5 mm (0.062") PC cards. The guide height is 51.60 mm and the slot width is 2.06 mm.
The purchased assembly includes the box, lid, 6 cover screws and pre-installed brass inserts.
The drawing shows an inside length of 183.52 mm [7.225 in], inside width of 103.53 mm [4.076 in] and inside height of 56.60 mm [2.228 in].
The part data lists a UL94 V-0 flame rating, while the series specification sheet states the polycarbonate material carries UL94 V-2.
The lid uses M3-0.5 x 10 mm screws; replacements are 1591MS100 (silver) or 1591MS100BK (black) in packs of 100.
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