The 1557BA2BK is the 60 mm tall version of the 80 x 80 mm 1557 water-tight enclosure, molded in black UL listed polycarbonate. The extra height over the 45 mm 1557B2BK gives room for taller components, terminal blocks or stacked boards in a small sealed housing for outdoor or harsh locations.
Outside it measures 3.15 x 3.15 x 2.36 in (80 x 80 x 60 mm). The drawing shows an inside length of 71.30 mm [2.81 in], inside width of 71.02 mm [2.80 in] and inside height of 53.80 mm [2.12 in]. The maximum P.C. board size is 70.64 x 70.64 mm, mounted with #6 self-tapping screws, or on the 1557BPL aluminum inner panel.
A one piece high temperature UL listed silicone gasket seals the two piece tongue and groove lid against oil, dust and water, and the lid is fastened with M4 stainless steel machine screws in corrosion resistant M4-0.7 inserts. The part is rated IP68 and NEMA 4, 4X, 6, 6P, 12 and 13 and is cUL and UL 508A listed under file E65324. Polycarbonate versions are UV stabilized for outdoor use, IK08 impact rated per IEC 62262:2021, and recommended for -40°C to +110°C (-40°F to +230°F).
The 1557BA2BK includes box, lid, 4 cover screws, preformed silicone gasket, 4 rubber feet, 2 wall mount feet and 2 wall mount foot screws. It works on a tabletop, as a heavy duty flange wall mount, or flush on a wall using #8 pan head screws (not included); PMB5057WKIT1 and PMB5057WKIT2 pole mount kits are listed for the 1557BA profile.
| Mounting Options | Desktop/tabletop (rubber feet); heavy duty wall flange mount (mounting feet outward); flush wall mount (mounting feet as keyhole slots) |
| Wall Mounting Screws | #8 pan head screws (not included) |
| Pole Mount Screw Type | #8 x 1/2" |
| Pole Mount Kit (7" Max) | PMB5057WKIT1 |
| Pole Mount Kit (15" Max) | PMB5057WKIT2 |
| Pole Mount Replacement Screw Pack | SCPMB4-20 |
| Wall Mount Foot Installation Torque | Polycarbonate 100-110 cN-m or 8.8-9.7 lbf-in |
| Type | Water-tight |
| Color | Black |
| Series | 1557 Series Type 4/4X, 6/6P Polycarbonate and ABS Plastic Enclosures (Water-Tight, Multiple Mounting Features) |
| Description | BLACK PC plastic watertight enclosure |
| Part Number | 1557BA2BK |
| Enclosure Profile | 1557BA |
| Short Description | PC NEMA WALL MNT ENCL BK |
| Width | 3.15 in (80 mm) |
| Length | 3.15 in (80 mm) |
| Inside Width | 71.02 mm [2.80 in] |
| Total Height | 2.36 in (60 mm) |
| Inside Height | 53.80 mm [2.12 in] |
| Inside Length | 71.30 mm [2.81 in] |
| Size (L X W X H) | 3.15 in x 3.15 in x 2.36 in (80 mm x 80 mm x 60 mm) |
| Max. P.C. Board Width | 70.64 mm |
| Max. P.C. Board Length | 70.64 mm |
| Same-Size Variants | 1557BABK (Black ABS), 1557BAGY (Light Gray ABS), 1557BA2BK (Black Polycarbonate), 1557BA2GY (Light Gray Polycarbonate) |
| Aluminum Inner Panel | 1557BPL |
| Replacement Lid Screws | SC576-50 stainless steel, M4-0.7 x 20mm (Pkg 50) |
| Wall Mount Foot Screws | SC556-50 stainless steel, #8 x 3/8" self tapping (Pkg 50) |
| Replacement Rubber Feet | 1421T6CL (clear, Pkg 24) |
| P.C. Board Mounting Screws | SC526-50 steel, #6 x 1/4" self tapping (Pkg 50) |
| Replacement Gasket (2-Pack) | 1557BGASKET (silicone pre-formed, black) |
| Replacement Wall Mount Foot Kits (24-Pack) | 1557FOOT2BK-24 (Black Polycarbonate), 1557FOOT2GY-24 (Gray Polycarbonate) |
| UPC | 623980987507 |
| UNSPSC | 39121301 |
| Drawing Revision | REV: 13.02.2020 |
| Solid Models | .stp or .x_t |
| Factory Modification | Milling, drilling, printing etc. available from the factory |
| Included | Box, lid, 4 cover screws, preformed silicone gasket, 4 rubber feet, 2 wall mount foot screws and 2 wall mount feet |
| Packaging Type | Shrink wrap |
| Shipping Weight | 0.33 lbs (0.15 kg) |
| Gasket | One piece preformed gasket of high temperature UL listed silicone |
| Styling | Rounded corners and face |
| Material | Polycarbonate (UL listed) |
| Lid Screws | M4 stainless steel machine screws threaded into corrosion resistant M4-0.7 inserts/bushings |
| Lid Construction | Gasketed lid with two piece tongue and groove construction (protection against oil, dust and water) |
| PC Board Mounting | Bosses accept #6 self-tapping screws |
| Outer Wall Mount Option | Accepts #8 self-tapping screw |
| Recommended Cover Screw Torque | 71-85 ozf-in (50-60 cN-m) |
| IP Rating | IP68 (series: independently tested to meet IP66, IP67 and IP68) |
| NEMA Rating | 4, 4X, 6, 6P, 12 & 13 |
| Flame Rating | UL94 V-0 |
| Impact Rating | IK08 per IEC 62262:2021 |
| UV Resistance | UV stabilized for outdoor use |
| 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 |
| Recommended Operating Temperature | -40°C to +110°C (-40°F to +230°F) |
| Material Flammability (Spec Sheet/Drawing) | UL94-5VA (drawing: UL94 - 5VA @ 3mm) |
| UL File # | E65324 |
| UL Listing | cUL and UL 508A listed (cULus Listed, Type 4, 4X, 6, 6P marking on drawing) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The part carries an IP68 rating and NEMA 4, 4X, 6, 6P, 12 and 13 ratings.
For polycarbonate versions, -40°C to +110°C (-40°F to +230°F). The manufacturer notes customers should conduct their own testing for any specific application.
M4 stainless steel machine screws threaded into corrosion resistant inserts. Replacement lid screws are SC576-50 (M4-0.7 x 20mm, pack of 50).
Yes, 2 wall mount feet and 2 wall mount foot screws are included. The #8 pan head screws for fixing to the wall are not included.
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