The 1550Z115 is a natural (unpainted) thick-wall diecast aluminum enclosure from the Hammond 1550Z watertight series with a nominal 148 x 108 mm footprint and a 75 mm total depth. With nearly 70 mm of inside depth it offers generous volume for larger boards, connectors or wiring, and it mounts through two exterior holes rather than blind thru-box holes.
Overall dimensions per the drawing are 148.40 mm [5.84 in] long, 108.40 mm [4.27 in] wide and 75.40 mm [2.97 in] high, with inside dimensions of 139.25 mm [5.48 in] (length), 99.45 mm [3.92 in] (width) and 69.90 mm [2.75 in] (depth). The listed maximum P.C. board dimensions are 98.17 mm and 138.17 mm, and the lid height is 0.39 in (10 mm). Shipping weight is 1.34 lbs (0.61 kg).
Box and lid are made from diecast aluminum alloy that is tough yet easy to machine, and the walls have no internal ribs, so connectors fit without interference or extra milling. This unpainted version is vibra finished for a smooth natural aluminum surface with no sharp edges, and the alloy is easy to machine for custom openings.
The purchased assembly includes the box, lid, silicone gasket and 4 stainless steel Phillips head cover screws, which sit outside the gasket protection area so no o-rings are needed. Recommended cover screw torque is 5-7.5 lbf.in (50-75 cN.m). Unlike most 1550Z sizes it does not use blind thru-box holes; instead the drawing shows two exterior mount holes spaced at 77 x 133 mm. An internal ground point accepts an #6 self tapping screw; matching hardware is sold separately as SCG060-50.
The 1550Z series is cUL and UL listed (file #E71073) and independently tested to IP66, IP67, IP68 and NEMA Type 4, 4X, 12 and 13; this size is rated IK08 per IEC62262. It is RoHS and REACH compliant; customers should test suitability for their specific application.
| Type | Thick wall, water-tight |
| Color | Natural Aluminum |
| Series | 1550Z Series - Watertight Diecast Aluminum Enclosures (cUL & UL Listed, Thick Wall) |
| Part Number | 1550Z115 |
| Finish Variant | Natural Finish Enclosure |
| Long Description | watertight diecast enclosure |
| Short Description | DIECAST BOX 1550Z SERIES |
| Other Finish Variant | 1550Z115BK (Black Textured Enclosure) |
| Color (Ordering Table) | Unpainted |
| Lid Height | 0.39 in (10 mm) |
| Inside Depth | 69.90 mm [2.75 in] |
| Inside Width | 99.45 mm [3.92 in] |
| Inside Length | 139.25 mm [5.48 in] |
| Nominal Width | 4.25 in (108 mm) |
| Nominal Length | 5.83 in (148 mm) |
| Size L X W X H | 5.84 in x 4.27 in x 2.97 in (148 mm x 108 mm x 75 mm) |
| Nominal Total Depth | 2.95 in (75 mm) |
| Max. P.C. Board Width | 138.17 mm |
| Max. P.C. Board Length | 98.17 mm |
| Overall Width (Drawing) | 108.40 mm [4.27 in] |
| Overall Height (Drawing) | 75.40 mm [2.97 in] |
| Overall Length (Drawing) | 148.40 mm [5.84 in] |
| Ground Screw Pack | SCG060-50 - Ground hardware (50 pack): #6 phos. bronze plate lock washer and #6-32 x 5/16 copper plate self-tapping screw |
| Series Accessories | Breather kit, pressure compensation plug, small rainproof ventilator, liquid-tight cordgrips (nylon) and liquid-tight cordgrips (nickel plated brass) |
| Replacement Gaskets (Pair) | 1550Z115GASKET - Pre-formed silicone gasket (2 pack) |
| Replacement Lid Screw Pack | SC1550Z103-50 - Stainless steel cover screws, M4 - 0.7 x 20mm (50 pack) |
| UPC | 623980404349 |
| UNSPSC | 39121301 |
| Drawing Revision | REV: 08.07.2024 |
| Solid Models | .stp or .x_t |
| Factory Modification | Available (milling, drilling, printing etc.) - contact factory for quotes |
| Ground Point | Accepts #6 self tapping ground screw (inside box) |
| Cover Screw Size | M4 - 0.7 x 20mm |
| Exterior Mount Holes | X2, spaced at 77 x 133 mm |
| Hole Call-Outs (Drawing) | Accepts M4-0.7 machine screw; accepts #6 self-tap screw |
| Recommended Cover Screw Torque | 5-7.5 lbf.in (50-75 cN.m) |
| Packaging Type | shrink wrap |
| Shipping Weight | 1.34 lbs (0.61 kg) |
| Finish | Unpainted, vibra finished for a smooth surface with no sharp edges |
| Gasket | Pre-formed, one-piece silicone rubber; installs into lid groove |
| Material | Aluminum (Die-Cast Alloy) |
| Lid Fastening | 4 stainless steel Phillips head machine screws, outside the gasket protection area (no o-rings needed) |
| Wall Construction | Thick wall; no internal ribs |
| Box And Lid Material | Diecast Aluminum Alloy |
| Included In Assembly | Box, lid, silicone gasket, and 4 cover screws |
| IP Rating | IP68 |
| NEMA Rating | 4, 4X, 12 & 13 |
| Impact Rating | IK08 per IEC62262 |
| Series Ingress Testing | Independently tested to meet IP66, IP67 and IP68 |
| Gasket Temperature Rating | -40°C to +150°C (-40°F to 302°F) |
| UL / CUL | cUL and UL listed under file #E71073 |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The drawing gives an inside length of 139.25 mm [5.48 in], inside width of 99.45 mm [3.92 in] and inside depth of 69.90 mm [2.75 in]. Overall size is 148.40 mm [5.84 in] x 108.40 mm [4.27 in] x 75.40 mm [2.97 in].
The purchased assembly includes the box, lid, silicone gasket and 4 cover screws. Box and lid are made from diecast aluminum alloy.
The part page lists IP68 and NEMA 4, 4X, 12 & 13. The 1550Z series is independently tested to meet IP66, IP67 and IP68; customers should conduct their own testing for any specific application.
This size does not use blind thru-box holes. The drawing shows two exterior mount holes spaced at 77 x 133 mm.
Replacement lid screws are SC1550Z103-50 (M4 - 0.7 x 20mm (50 pack)), ground hardware is SCG060-50, and replacement gaskets are 1550Z115GASKET (sold as a pair).
Yes. The 1550Z series is cUL and UL listed under file #E71073, and this size carries an IK08 impact rating per IEC62262. It is also RoHS and REACH compliant.
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