The 1557H2BK is a black polycarbonate watertight enclosure measuring 7.87 in x 7.87 in x 1.77 in (200 mm x 200 mm x 45 mm), the largest footprint in the 1557 Series. It gives OEM and field engineers a wide, low-profile sealed housing for P.C. boards up to 187 mm x 187 mm.
As a polycarbonate model, the 1557H2BK is UV stabilized for outdoor use, cUL and UL 508A listed under file E65324 and rated IK08 per IEC 62262:2021. The part page lists IP68 and NEMA 4, 4X, 6, 6P, 12 & 13 with a UL94 V-0 flame rating, and polycarbonate versions have a recommended operating range of -40°C to +110°C (-40°F to +230°F).
The inside cavity is 191.02 mm [7.52 in] long and wide with 38.80 mm [1.53 in] of height, and board mounting bosses accept #6 self-tapping screws. A two piece tongue and groove lid and one piece high temperature silicone gasket seal the box against oil, dust and water, while four stainless steel M4-0.7 x 20 mm screws in corrosion resistant inserts allow repeated access at 71-85 ozf-in (50-60 cN-m).
The 1557H2BK is supplied with lid, 4 cover screws, preformed gasket, 4 rubber feet, 4 wall mount feet and 4 wall mount foot screws. It works as a tabletop unit, flush wall mount or heavy duty wall flange mount, and pole mount kits PMB110127KIT3 (7 in max) and PMB110127KIT4 (15 in max) fit the 1557H profile. Shipping weight is 0.99 lbs (0.45 kg).
| Wall Mount Feet | Accept #8 self-tapping screw; #8 pan head screws for wall mounting not included |
| Mounting Options | Desktop/tabletop (rubber feet), flush wall mount (mounting feet as keyhole slots), heavy duty wall flange mount (mounting feet outward) |
| Pole Mount Screw Type | #8 x 3/8" |
| Pole Mount Kit (7" Max) | PMB110127KIT3 |
| Pole Mount Kit (15" Max) | PMB110127KIT4 |
| Pole Mount Replacement Screw Pack | SCPMB5-20 |
| Wall Mount Foot Installation Torque | Polycarbonate 100-110 cN-m (8.8-9.7 lbf-in) |
| Type | Water-tight |
| Series | 1557 Series Type 4/4X, 6/6P Polycarbonate and ABS Plastic Enclosures |
| Description | BLACK PC plastic watertight enclosure |
| Enclosure Profile | 1557H |
| Short Description | PC NEMA WALL MNT ENCL BK |
| Width | 7.87 in (200 mm) |
| Length | 7.87 in (200 mm) |
| Inside Width | 191.02 mm [7.52 in] |
| Total Height | 1.77 in (45 mm) |
| Inside Height | 38.80 mm [1.53 in] |
| Inside Length | 191.02 mm [7.52 in] |
| Size (L X W X H) | 7.87 in x 7.87 in x 1.77 in (200 mm x 200 mm x 45 mm) |
| Max. P.C. Board Width | 187 mm |
| Max. P.C. Board Length | 187 mm |
| Aluminum Inner Panel | 1557HPL |
| Replacement Gasket (2-Pack) | 1557HGASKET |
| Replacement Lid Screws (50-Pack) | SC576-50 |
| Wall Mount Foot Screws (50-Pack) | SC556-50 (#8 x 3/8" self tapping, stainless steel) |
| Replacement Rubber Feet (24-Pack) | 1421T6CL |
| PC Board Mounting Screws (50-Pack) | SC526-50 (#6 x 1/4" self tapping) |
| Replacement Wall Mount Foot Kit (24-Pack) | 1557FOOT2BK-24 |
| UPC | 623980987606 |
| UNSPSC | 39121301 |
| Part Number | 1557H2BK |
| Black ABS | 1557HBK |
| Light Gray ABS | 1557HGY |
| Light Gray Polycarbonate (UL Listed) | 1557H2GY |
| Included Items | 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 | 0.99 lbs (0.45 kg) |
| Color | Black |
| Gasket | One piece preformed gasket made from high temperature UL listed silicone |
| Material | Polycarbonate |
| CAD Models | Solid models available in .stp or .x_t |
| Lid Fasteners | 4 stainless steel M4-0.7 x 20 mm cover screws threaded into corrosion resistant bushings (M4-0.7 inserts) |
| Lid Construction | Gasketed lid with two piece tongue and groove construction |
| P.C. Board Mounting | Internal bosses accept #6 self-tapping screws |
| Factory Modification | Can be factory modified (milling, drilling, printing etc.) |
| Recommended Cover Screw Torque | 71-85 ozf-in (50-60 cN-m) |
| IP Rating | IP68 (tested to IP66, IP67 and IP68) |
| NEMA Rating | 4, 4X, 6, 6P, 12 & 13 |
| Impact Rating | IK08 per IEC 62262:2021 |
| UV Resistance | UV stabilized for outdoor use |
| Recommended Operating Temperature | -40°C to +110°C (-40°F to +230°F) |
| UL File # | E65324 |
| UL Listing | cUL and UL 508A listed |
| Flame Rating | UL94 V-0 |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Material Flammability (Drawing Note) | UL94-5VA @ 3 mm |
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The listed maximum P.C. board length and width are 187 mm.
Inside length and width are 191.02 mm [7.52 in]; inside height is 38.80 mm [1.53 in].
Yes. Polycarbonate 1557 versions are cUL and UL 508A listed under file E65324.
For the 1557H profile, PMB110127KIT3 (7 in max) or PMB110127KIT4 (15 in max), using #8 x 3/8 in screws (replacement pack SCPMB5-20).
1557HGASKET (2-pack) and the 1557HPL aluminum inner panel.
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