The hazardous locations 646GZEM-7011 Series is a rugged, heavy duty gage pressure switch, DPDT with a stainless steel port and diaphragm for corrosion resistance and wet conditions. Similar to the 604 Series in design, the 646GZE-7011 Series is UL/CSA explosion proof, Class I, Groups A, B, C and D, and Class II Groups E, F and G certified. It comes with high vibration and shock resistance utilizing Dual Snap® disc spring technology. Applications include: • Oil & Gas • Power Generation • Fluid Management • Chemical Refining and Processing • Manufacturing Process • Utilities, Water Treatment and Waste • Safety Systems Environmental Approvals IP65, IP66, NEMA 4, NEMA 4X, NEMA 7, NEMA 9, NEMA 13, NACE, SIL, RoHS Industry Industrial Instrumentation Pressure Switch Environment Hazardous Certification Agency Approvals UL, CSA, CE, CRN, CCC, DUAL SEAL Operating Temperature Range -40° to 186 °F Process Connection Fitting Size Female 1/2" NPT Process Connection Material Stainless Steel Housing Enclosure Aluminum Electrical Connection Male 1/2" NPT Electrical Switch Type DPDT Voltage Electrical Rating VAC 0 to 250 VAC, 251 to 480 VAC Amperes Electrical Rating 0.5 to 5 A Junction box app 141-18, 141-19, 141-20, 141-28 Fixed or Adjustable Set Point Adjustable Presetting Factory Set, Not Factory Set Tagging Mylar, Stainless Steel Accessories Manifold Increasing Pressure Range 1.4 to 16 PSIG, 10 to 75 PSIG, 20 to 150 PSIG, 50 to 375 PSIG, 330 to 1000 PSIG, 950 to 2300 PSIG, 2100 to 3400 PSIG, 3200 to 5000 PSIG Decreasing Pressure Range 0.4 to 15 PSIG, 16 to 347 PSIG, 1820 to 3120 PSIG, 250 to 920 PSIG, 2720 to 4520 PSIG, 3 to 68 PSIG, 6 to 136 PSIG, 750 to 2100 PSIG Pressure Type Gage Media Oil Based, Non-Oil Based Increasing Pressure Ranges 1.16 – 2.99 PSI, 3 – 180 PSI, 180.01 – 3400 PSI, 3400.01 – 16000 PSI Decreasing Pressure Ranges 0 – 1.15 PSI, 1.16 – 173 PSI, 173.01 – 3180 PSI, 3180.01 – 13500 PSI Maximum System Pressure 500, 3000, 5000 Maximum Proof Pressure 750, 5000, 7500 Process Connection Seal O-Ring Sealed Diaphragm Diaphragm Stainless Steel O-ring Viton