The 1557HA2BK is a black polycarbonate watertight enclosure measuring 200 mm x 200 mm x 70 mm (7.87 in x 7.87 in x 2.76 in). It is the taller HA profile of the 1557 Series and is built for OEM engineers, controls builders and integrators who need to house printed circuit boards or small electronics where water, dust and oil are a concern, indoors or out.
The box and lid are molded from UV stabilized polycarbonate, cUL and UL 508A listed under file #E65324. It has been tested to IP66, IP67 and IP68 and carries NEMA Type 4, 4X, 6, 6P, 12 and 13 ratings, plus an IK08 impact rating per IEC 62262:2021. A two piece tongue and groove lid seals against a one piece, high temperature UL listed silicone gasket, and four M4 stainless steel cover screws thread into corrosion resistant bushings so the lid can be opened and closed repeatedly.
Inside, the enclosure offers 191.02 mm x 191.02 mm of floor space and 63.80 mm (2.51 in) of inside height, taking PC boards up to 187 mm x 187 mm on bosses that accept #6 self-tapping screws. The recommended operating temperature is -40°C to +110°C (-40°F to +230°F).
Every 1557HA2BK ships with the box, lid, four cover screws, a preformed silicone gasket, four rubber feet, four wall mount feet and four wall mount foot screws, so it can sit on a desktop, bolt up as a heavy duty wall flange mount, or hang flush using the feet as keyhole slots. Pole mount kits PMB110127KIT3 and PMB110127KIT4, an aluminum inner panel (1557HPL) and a replacement gasket 2-pack (1557HGASKET) are available separately.
| Type | Water-tight |
| Series | 1557 |
| Description | BLACK PC plastic watertight enclosure |
| Part Number | 1557HA2BK |
| Enclosure Profile | 1557HA |
| Short Description | PC NEMA WALL MNT ENCL BK |
| Factory Modification | Milling, drilling, printing available from the factory; solid models in .stp or .x_t |
| Width | 7.87 in (200 mm) |
| Length | 7.87 in (200 mm) |
| Inside Width | 191.02 mm [7.52 in] |
| Total Height | 2.76 in (70 mm) |
| Inside Height | 63.80 mm [2.51 in] |
| Inside Length | 191.02 mm [7.52 in] |
| Size (L X W X H) | 7.87 in x 7.87 in x 2.76 in (200 mm x 200 mm x 70 mm) |
| Max. P.C. Board Width | 187 mm |
| Max. P.C. Board Length | 187 mm |
| UPC | 623980987620 |
| UNSPSC | 39121301 |
| Pole Mount Kits | PMB110127KIT3 (7" max), PMB110127KIT4 (15" max); #8 x 3/8" screws, replacement pack SCPMB5-20 |
| Mounting Options | Tabletop (rubber feet), heavy duty wall flange mount (mounting feet outward), flush wall mount (mounting feet as keyhole slots) |
| Wall Anchoring Screws | #8 pan head screws (not included) |
| Wall Mount Foot Screws | #8 x 3/8" self-tapping |
| Wall Mount Foot Installation Torque | 100 - 110 cN-m or 8.8 - 9.7 lbf-in (polycarbonate) |
| Included | Box, lid, 4 cover screws, preformed silicone gasket, 4 rubber feet, 4 wall mount foot screws, 4 wall mount feet |
| Packaging Type | Shrink wrap |
| Shipping Weight | 1.18 lbs (0.54 kg) |
| Color | Black |
| Gasket | One piece, preformed high temperature UL listed silicone |
| Material | Polycarbonate |
| Cover Screws | 4 x M4-0.7 x 20 mm stainless steel, threaded into corrosion resistant bushings |
| Lid Construction | Gasketed lid with two piece tongue and groove construction |
| Internal PCB Mounting | Bosses accept #6 self-tapping screws |
| Recommended Cover Screw Torque | 71-85 ozf-in (50-60 cN-m) |
| Aluminum Inner Panel | 1557HPL |
| Replacement Gasket (2-Pack) | 1557HGASKET |
| Replacement Lid Screws (50-Pack) | SC576-50 (M4-0.7 x 20mm stainless steel) |
| Wall Mount Foot Screws (50-Pack) | SC556-50 (#8 x 3/8" self tapping stainless steel) |
| Replacement Rubber Feet (24-Pack) | 1421T6CL (clear) |
| PC Board Mounting Screws (50-Pack) | SC526-50 (#6 x 1/4" self tapping steel) |
| Replacement Wall Mount Foot Kit (24-Pack) | 1557FOOT2BK-24 (black polycarbonate) |
| IP Rating | IP68 (tested to IP66, IP67 and IP68) |
| NEMA Rating | 4, 4X, 6, 6P, 12 & 13 |
| Flame Rating | UL94 V-0 |
| Impact Rating | IK08 per IEC 62262:2021 |
| Indoor / Outdoor | UV stabilized for outdoor use |
| Recommended Operating Temperature | -40°C to +110°C (-40°F to +230°F) |
| Material Flammability (Drawing Note) | UL94 - 5VA @ 3mm |
| UL File # | E65324 |
| UL Listing | cUL and UL 508A listed, file #E65324 |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The drawing gives an inside length and width of 191.02 mm (7.52 in) and an inside height of 63.80 mm (2.51 in). Maximum PC board size is 187 mm x 187 mm.
Yes. The polycarbonate versions of the 1557 Series are UV stabilized for outdoor use and are rated IP66, IP67 and IP68 as well as NEMA Type 4, 4X, 6, 6P, 12 and 13.
The box, lid, 4 cover screws, a preformed silicone gasket, 4 rubber feet, 4 wall mount foot screws and 4 wall mount feet. The #8 pan head screws used to anchor it to a wall are not included.
Yes. The polycarbonate version is cUL and UL 508A listed under file #E65324.
The replacement gasket 2-pack is 1557HGASKET and the aluminum inner panel is 1557HPL.
The drawing recommends 71-85 ozf-in (50-60 cN-m) for the cover screws.
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