{"product_id":"siemens-540-506n-dual-duct-terminal-equipment-controller-with-two-air-velocity-sensors","title":"Siemens 540-506N Dual Duct Terminal Equipment Controller with Two Air Velocity Sensors","description":"\u003ch4 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe Siemens 540-506N is a Terminal Equipment Controller designed to regulate dual-duct air distribution systems using two integrated air velocity sensing channels. It monitors airflow and space temperature while controlling compatible dampers, valves, and other HVAC equipment to maintain programmed airflow and temperature conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e540-506N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHVAC Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual Duct Terminal Equipment Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAPOGEE Field Level Network Terminal Equipment Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect Digital Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual Duct Variable Air Volume and Constant Volume Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAir Velocity Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Velocity Sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 to 28 Volts Alternating Current, 50 or 60 Hertz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.4 Volt-Amperes plus 12 Volt-Amperes per Digital Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Outputs, 0 to 10 Volts Direct Current, 5 Milliamperes Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Outputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 Optically Isolated 24 Volt Alternating Current Solid-State Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 Dry Contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4800 Bits per Second Field Level Network Trunk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32°F to 122°F (0°C to 50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5% to 95% Relative Humidity, Non-Condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAir Velocity Measurement Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 5200 Feet per Minute (0 to 26 Meters per Second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.125 × 11.25 × 1.5 Inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.29 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About 540-506N\u003c\/h4\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe 540-506N is a Siemens APOGEE Field Level Network Terminal Equipment Controller developed specifically for dual-duct HVAC applications. Its electronic controller platform incorporates two air velocity sensor inputs, temperature sensing capability, analog inputs, digital inputs, analog outputs, and electrically isolated digital outputs for connected field equipment. The controller operates from a nominal 24 volt alternating-current supply and interfaces with room sensors, duct sensors, electronic damper actuators, valves, and auxiliary control devices. It is intended for building automation installations where independent measurement and regulation of airflow from dual-duct terminal equipment are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDual-Duct Control: Designed specifically for terminal units that regulate airflow from two separate air ducts.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTwo Air Velocity Sensors: Uses two differential-pressure-based air velocity measurement channels for airflow monitoring and control.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTemperature Regulation: Supports room temperature sensing for coordinated airflow and space temperature control.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMultiple Analog Inputs: Provides connections for temperature, airflow, setpoint, auxiliary, and selectable analog signals.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAnalog Control Outputs: Includes three 0 to 10 volt direct-current outputs rated at a maximum of 5 milliamperes each.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDigital Control Outputs: Provides eight optically isolated 24 volt alternating-current digital outputs for connected equipment.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFlexible Field Device Support: Compatible with room sensors, valves, damper actuators, digital contacts, and other HVAC control devices.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAPOGEE Integration: Designed for use within Siemens APOGEE building automation and Field Level Network control environments.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe 540-506N delivers the reliability and precision required for dual-duct airflow regulation and terminal equipment control in commercial HVAC systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp id=\"p-rc_c7b8f4fae39e183e-25\"\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":52695557898538,"sku":"540-506N","price":829.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/s-l1200_d959f110-921f-4f6d-9f70-c59b37e3ad33.png?v=1789931019","url":"https:\/\/iqelectro.com\/products\/siemens-540-506n-dual-duct-terminal-equipment-controller-with-two-air-velocity-sensors","provider":"IQElectro","version":"1.0","type":"link"}