The 611G Series is an economical, compact pressure switch. It is modeled after our flagship 6900 Series with the same level of performance and quality but designed for applications where space and cost are a concern. Made from aluminum, it has high vibration and shock resistance utilizing Dual Snap® disc spring technology. Applications include nonhazardous environments such as: • Power Generation • Rail Car • Fluid Management • Manufacturing Process • Utilities, Water Treatment and Waste • Chemical Refining and Processing • Heavy Vehicles • Safety Systems Environmental Approvals IP65, NEMA 4, NEMA 13, RoHS Industry Industrial Instrumentation Pressure Switch Environment Non-Hazardous Certification Agency Approvals CE, CRN Operating Temperature Range -40° to 186 °F Process Connection Fitting Size Male 1/4" NPT Process Connection Material Aluminum Housing Enclosure Aluminum Electrical Connection Male 1/2" NPT Electrical Switch Type SPDT Voltage Electrical Rating VAC 0 to 250 VAC Amperes Electrical Rating 0.5 to 11 A Junction box app 141-18, 141-19, 141-20, 141-28 Fixed or Adjustable Set Point Adjustable, Fixed Presetting Factory Set, Not Factory Set Tagging Mylar, Stainless Steel Accessories Manifold Increasing Pressure Range 1.5 to 12.1 PSIG, 1.5 to 25 PSIG, 12.1 to 30 PSIG, 26 to 80 PSIG, 30.1 to 70 PSIG, 70.1 to 180 PSIG, 81 to 180 PSIG Decreasing Pressure Range 0.75 to 11.35 PSIG, 1 to 23 PSIG, 10.1 to 28 PSIG, 23 to 73.5 PSIG, 27.1 to 67 PSIG, 63.1 to 173 PSIG, 66 to 153 PSIG Pressure Type Gage Media Oil Based, Non-Oil Based Increasing Pressure Ranges 1.16 – 2.99 PSI, 3 – 180 PSI Decreasing Pressure Ranges 0 – 1.15 PSI, 1.16 – 173 PSI Maximum System Pressure 250, 500 Maximum Proof Pressure 500, 1000 Process Connection Seal O-Ring Sealed Diaphragm Diaphragm Polyimide O-ring Buna N