The 1557BA2GY is a RAL7035 light gray polycarbonate enclosure in the 80 x 80 x 60 mm 1557BA size. It is intended for panel builders, electricians and OEM engineers housing small circuit boards and electronics in wet, dusty or outdoor installations that call for a UL listed, water-tight box.
The enclosure is 3.15 in (80 mm) long and wide with a 2.36 in (60 mm) total height. Per the drawing, the inside measures 71.30 mm [2.81 in] by 71.02 mm [2.80 in] with 53.80 mm [2.12 in] of height. Maximum P.C. board size is 70.64 x 70.64 mm; boards fasten to bosses with #6 self-tapping screws, and the 1557BPL aluminum inner panel is available.
Sealing comes from a gasketed two piece tongue and groove lid using a one piece, high temperature UL listed silicone gasket, closed with M4 stainless steel machine screws in corrosion resistant inserts for repeated assembly and disassembly. Ratings are IP68 and NEMA 4, 4X, 6, 6P, 12 and 13, with cUL and UL 508A listing under file E65324. Polycarbonate versions are UV stabilized for outdoor use, carry IK08 impact resistance per IEC 62262:2021, and are recommended for -40°C to +110°C.
Included with the 1557BA2GY: box, lid, 4 cover screws, preformed silicone gasket, 4 rubber feet, 2 wall mount feet and 2 wall mount foot screws. The feet install at 100-110 cN-m (8.8-9.7 lbf-in) for polycarbonate and support heavy duty flange or flush keyhole wall mounting.
| 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 | Light Gray (RAL7035 grey) |
| Series | 1557 Series Type 4/4X, 6/6P Polycarbonate and ABS Plastic Enclosures (Water-Tight, Multiple Mounting Features) |
| Description | RAL7035 grey PC plastic watertight enclosure |
| Part Number | 1557BA2GY |
| Enclosure Profile | 1557BA |
| Short Description | PC NEMA WALL MNT ENCL GY |
| 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 | 623980987514 |
| 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 drawing shows an inside height of 53.80 mm [2.12 in], with inside length of 71.30 mm and width of 71.02 mm.
Yes. Polycarbonate versions are cUL and UL 508A listed under file E65324.
Yes. For the 1557BA profile the series lists PMB5057WKIT1 for poles up to 7" and PMB5057WKIT2 for poles up to 15".
For polycarbonate enclosures the instructions give 100-110 cN-m or 8.8-9.7 lbf-in.
The manufacturer advises against acetone, ketones, ethers, aromatic and chlorinated hydrocarbons, thread locking compounds, cutting or tapping fluid, water detection paste, anti-seize paste, strong solvents or cleaners, and some greases and oils.
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