Mercoid Series D Enclosures
A general purpose NEMA 1 enclosure is furnished as standard on all Series D pressure switches. Weatherproof and explosion-proof housings are optionally available and designated by adding a third character to the model number. DAW, for example, indicates a DA pressure switch with a weatherproof enclosure.
General Purpose NEMA 1 Enclosure
For indoor use and other general purpose applications under normal atmospheric conditions. Provides protection against dust and light splashing. Heavy gauge plain steel case. Flanged case available. Transparent cover for visible on-off operation. Locking device prevents tampering. Pressure connection, 1/49 NPT. Electrical connection back of case for 1/29 conduit or BX. Shipping wt. 4 lb (1.8 kg).
Watertight, Dust-tight/ Type W NEMA 3S, 4, & 4X Enclosure
For outdoor or indoor applications . Complies with hose test and requirements for watertight, dust-tight, drip-tight weatherproof, weather-resistant, splash-proof, sleet-proof, and moisture-resistant. Flanged, heavy gauge steel case with transparent cover for visible on-off operation. External adjustments protected by cover. Bottom pressure connection. 1/49 NPT. Electrical connection back of case for 1/29 conduit, removable 1/29 hub. Shipping wt. 6 lb (2.7 kg).
Hazardous Area Enclosure suitable for Class I, Groups C & D, Class II, Groups E, F & G; NEMA 7 & 9 applications.
Control mechanism is an integral part of enclosure and cannot be replaced in the field. For surface, panel or pipe mounting. Aluminum case with glass window in cover for visible on-off operation. Bottom pressure connection, 1/29 male NPT 3 1/49 female NPT. External adjustments. Available with breather and drain. Shipping wt. 8 lbs. (3.6 kg.). See above for dimensions. Optional housing, to order add “H” to prefix. Example: DAH, DRH, or DSH.
