The 1551SNAP1GY is a 40 x 40 mm square unvented miniature enclosure from the 1551SNAP series, molded in grey ABS plastic. Its snap-fit assembly and wall-mounting features are designed for IoT or general purpose applications, and it is well suited to mounting printed circuit boards for sensor nodes and small electronics. If airflow is needed, the matching vented version is 1551V1GY.
The part page lists a size of 1.57 in x 1.57 in x 0.79 in (40 mm x 40 mm x 20 mm); the drawing shows 40.00 mm [1.57 in] by 40.00 mm [1.57 in] with an overall height of 20.30 mm [0.80 in]. The maximum P.C. board size is 34 mm x 34 mm, and four PC board standoffs are molded into the interior. Boards are secured with #2 x 3/16" self-tapping screws, which are not included; 1553WTS100 is a pack of 100, and the recommended torque is 21-28 ozf.in (15-20 cN.m).
The base and cover snap together with no hardware required, and the enclosure can be reopened repeatedly as needed. Assembly hooks, wall-mounting slots on the base and a wire entry knockout that can be removed with a screwdriver make installation straightforward. The light grey finish is one of the three stocked colours, alongside black and white.
The 1551SNAP1GY is designed to meet IP30, the ABS material carries a UL94-HB rating, and it is RoHS and REACH compliant. Shipping weight is 0.03 lbs (0.01 kg). Some chemicals can damage or weaken ABS, including acetone, thread-locking compounds and cutting fluids, so confirm compatibility first. Factory modification (milling, drilling, printing) is available, and solid models are offered in .stp or .x_t.
| Wall Mounting | Slots on the base of the enclosure |
| Type | Miniature, sensor |
| Shape | Square |
| Series | 1551SNAP, ABS Plastic Miniature Enclosures (snap-fit, wall-mount) |
| Version | Unvented |
| Description | grey plastic enclosure |
| Part Number | 1551SNAP1GY |
| Short Description | SNAP ENCL 40 x 40 ABS GREY |
| Vented Equivalent | 1551V1GY |
| Size L X W X H | 1.57 in x 1.57 in x 0.79 in (40 mm x 40 mm x 20 mm) |
| Max. P.C. Board Width | 34 mm |
| Max. P.C. Board Length | 34 mm |
| Overall Width (Drawing) | 40.00 mm [1.57 in] |
| Overall Height (Drawing) | 20.30 mm [0.80 in] |
| Overall Length (Drawing) | 40.00 mm [1.57 in] |
| Nominal Size (Ordering Table) | 1.57 in (L) x 1.57 in (W) x 0.79 in (D) (40 mm x 40 mm x 20 mm) |
| UPC | 623980850498 |
| UNSPSC | 39121301 |
| Shipping Weight | 0.03 lbs (0.01 kg) |
| Color | Light Gray (Grey in ordering table) |
| Assembly | Snap fit, no hardware required; can be reopened repeatedly |
| Material | ABS Plastic (general purpose ABS) |
| CAD Models | .stp or .x_t |
| PCB Screws | #2 x 3/16" self-tapping (not included); 1553WTS100 Plastite, 4.8 mm, pack of 100 |
| Wire Entry | Knockout on base, removable with a screwdriver |
| Base Features | Assembly hooks, wall-mounting slots, snap-fit closures, wire entry knockout, PC board standoffs |
| Included Items | Snap together base and cover |
| PC Board Standoffs | 4, molded into interior; accept #2 self-tapping screw |
| Recommended Torque | (21-28) ozf.in / (15-20) cN.m |
| Factory Modification | Milling, drilling, printing available (contact factory) |
| Drawing Color Callout | Gray Enclosure - UL94 - HB |
| IP Rating | IP30 (designed to meet) |
| Chemical Resistance | Avoid acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread-locking compounds, cutting/tapping fluid, water detection and anti-seize paste, strong solvents, some greases and oils |
| Flame Rating | UL94 HB |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Business account holders get access to exclusive pricing, volume discounts, and dedicated support. Create a free account to get started.
No. The 1551SNAP1GY is the unvented version. The vented equivalent in the same size and colour is 1551V1GY.
No. The base and cover snap together with no hardware required, and the enclosure can be reopened repeatedly as needed.
The maximum P.C. board size is 34 mm x 34 mm. Four standoffs are molded into the interior and accept #2 x 3/16" self-tapping screws (not included; see 1553WTS100).
Slots on the base allow wall mounting, and a knockout on the base can be removed with a screwdriver for wire entry.
It is designed to meet IP30, and the ABS material has a UL94-HB rating.
Hammond Manufacturing · 001100
Hammond Manufacturing · 001102
Hammond Manufacturing · 001104
Hammond Manufacturing · 001106
Hammond Manufacturing · 001111
