For a classic start/stop pair or a switch with an indicator, the 1437MSSB provides two 22.5mm openings in an extra deep 304 stainless steel enclosure. Part of the 1437SS Series, it is designed to accept standard heavy duty oil tight pushbuttons, switches and pilot lights and protects them from dirt, dust, oil and water.

The enclosure is formed from 16 gauge steel with smooth, continuously welded seams and a natural stainless steel brushed finish. Captive cover screws fasten into threaded, sealed wells, and an oil resistant gasket and adhesive seal the cover. The series notes that larger sizes use internally hinged removable covers that hold the cover open during wiring, with only the 1-hole size footnoted as not hinged. A bonding stud is on the door and a grounding stud on the enclosure.

Nominal size is 6 in x 4 in x 4.75 in (152 mm x 102 mm x 121 mm). The drawing gives a 6.75 in overall height, a 6.37 in by 4.37 in door, a 4.97 in overall depth and Ø0.89 in holes on 2.25 in centres. Welded brackets carry Ø0.25 in mounting holes on 3.13 in x 6.50 in centres. The 1437MSSB ships boxed at 3 lbs (1.36 kg).

Ratings for the series are UL 508A Type 4 and 4X, CSA Enclosure 4 and 4X, NEMA Type 4 and 4X and IEC 60529 IP66, maintained when appropriate components are fitted. UL file E65324 and CSA certificate LR21001 apply, and the part is REACH and RoHS compliant.