Norgren Collateral

38 Rail Product Overview Product Highlights » High accuracy » Minimal drift over lifetime (1,000,000 cycles) » Robust design » Ease of adjustment » High technology production cell » Designed specifically for Rail Sector » On request: • Customised labelling • Customised part numbering and serial number control • Factory pre-setting » Special adaptations » Direct replacement for many existing switches » Global sales and technical support Technical Specification » Temperature Range: -40°C to +70°C » Pressure Range: 0.1 to 10 bar » Min. switching pressure difference: 0.25 bar » Max. switching pressure difference: 5 bar » NO/NC switching logic » Protection Class: IP65 » Repeatability; + 3% of final pressure » Max. current draw: 3A at 24 VDC; 0.7A at 110 VDC (Higher current ratings on request depending on application) » Min. current draw: 5mA at 5 VDC The Norgren 21D electro mechanical all-fluid pressure switch has been designed to monitor pressure levels in a variety of rail system applications, such as rail vehicle brakes, pantographs, Compressor control, shoe gear, air suspension, horn operation and many others. The 21D is manufactured from carefully selected high-performance materials, including gold plated or silver plated switch contacts, as well as hard wearing silicone for the diaphragm – to maximise performance and component life-span. The 21D has an IP65 rating to EN 60529 to maintain the integrity of the system against contamination or damage from fluids and solids. It also offers a high number of switching cycles, with optimum accuracy and repeatability of +/- 3% of the final pressure value which is maintained over the whole life of the product. The modular design allows for different mounting options and electrical interfaces as well as a wide choice of single pole and double pole switching logics. The micro switches used provide a long life, high accuracy and have been approved by UL/CSA. Pressure detection 21D Pressure Switch Modular & mechanical heavy duty pressure switch

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