The HYMPB1SSR is the compact square version of the single-hole hygienic Type 4X stainless steel pushbutton enclosure in the HYPB Series. With one 22mm pushbutton hole in a 4.98 in (126 mm) square footprint, it is a good fit where a single pushbutton or indicator must be placed on washdown equipment with limited space. Its 30mm-hole counterpart is the HYPB1SSR.
Construction is formed 304 stainless steel, sloped 3° on all four sides so water runs off in any orientation, with continuously welded seams ground smooth and a natural #4 dairy finish. The silicone gasket runs around the entire door edge and can be removed for cleaning; the listed replacement is the HYG55. The hex head screw cover lifts off completely for modifications, and a bonding stud on the door and grounding stud in the enclosure are included.
The enclosure measures 4.98 in (126 mm) high by 4.98 in (126 mm) wide by 4.00 in (102 mm) deep, with a nominal size of 5 x 5 x 4 in. Its drawing shows a 4.12 x 4.12 in door, 2.37 in of clear space on the door and 3.43 in of usable depth, with a 0.89 in notched pushbutton hole.
Mounting is left to the installer: there are no pre-drilled wall holes, so weld-in-place or stand-off mounting can be used. The series carries UL 508A and CSA Type 3R, 12, 4, 4X ratings, complies with NEMA 3R, 12, 4, 4X and IEC 60529 IP69/IP69K, and meets NSF/ANSI 169. The HYMPB1SSR has a shipping weight of 6 lb (2.72 kg).
| Series | HYPB Series (sloped sides with silicone gasket) |
| Product Type | Hygienic Type 4X stainless steel pushbutton enclosure |
| Short Description | HYGIENIC N4X 22MM 1PB |
| Replacement Gasket | HYG55 |
| 30mm Hole Equivalent | HYPB1SSR |
| Pushbutton Hole Size | 22mm (22.5mm notched hole) |
| Number Of Pushbutton Holes | 1 |
| Enclosure Depth | 4.00 in (102 mm) |
| Enclosure Width | 4.98 in (126 mm) |
| Enclosure Height | 4.98 in (126 mm) |
| Door Size (Drawing) | 4.12 in x 4.12 in |
| Usable Depth (Drawing) | 3.43 in |
| Nominal Size (H X W X D) | 5 in x 5 in x 4 in (127 mm x 127 mm x 102 mm) |
| Pushbutton Hole Diameter (Drawing) | 0.89 in |
| Clear Space Available On Door (Drawing) | 2.37 in |
| UPC | 623980102870 |
| UNSPSC | 39121326 |
| Part Number | HYMPB1SSR |
| Shipping Weight | 6 lbs (2.72 kg) |
| Cover | Hex head screw cover, completely removable for modifications |
| Seams | Continuously welded, ground smooth |
| Sides | Sloped 3° on all 4 sides |
| Finish | Natural stainless steel cover and enclosure, smooth #4 dairy finish |
| Gasket | Silicone gasket mounted around entire door edge; removable and re-installable for cleaning or replacement |
| Material | Formed 304 stainless steel |
| Grounding | Bonding stud on door; grounding stud installed in enclosure |
| Wall Mounting | No pre-drilled wall mounting holes; allows weld-in-place or stand-off mounting |
| Pushbutton Holes | Notched holes |
| UL | UL 508A Type 3R, 12, 4, 4X |
| CSA | CSA Type 3R, 12, 4, 4X |
| NSF | NSF/ANSI 169 (not all accessories maintain NSF standard) |
| NEMA | Complies with NEMA 3R, 12, 4, 4X |
| IP Rating | IEC 60529, IP69, IP69K |
| UL File # | E517628/E65324 |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Additional EU Declarations | RoHS Directive 2011/65/EU; Directive (EU) 2015/863 |
| EU Declaration Of Conformity | Low Voltage Directive 2014/35/EU |
| Safety Of Machinery Standard | EN 60204-1: 2006 / IEC 60204-1: 2005-10 (Electrical Equipment of Machines, Part 1: General Requirements) |
| Degrees Of Protection Standard | EN 60529: 1992 + A2: 2013 / IEC 60529: 2001-02 + A2: 2013-08 (IP code) |
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Both have one 22mm hole, but the HYMPB1SSR is a compact 4.98 x 4.98 x 4.00 in enclosure using gasket HYG55, while the HYMPB1SS is 7.94 x 4.88 x 4.00 in and uses HYG85.
One 22mm notched hole (22.5mm). The HYPB1SSR is the 30mm-hole version.
The series is rated UL 508A and CSA Type 3R, 12, 4, 4X and complies with IEC 60529 IP69 and IP69K, plus NSF/ANSI 169.
No pre-drilled wall mounting holes are provided, allowing weld-in-place or stand-off mounting.
6 lb (2.72 kg).
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