{"product_id":"017d002166-danfoss-rt-260a-differential-pressure-switch","title":"017D002166 Danfoss RT 260A Differential Pressure Switch","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e017D002166 (RT 260A)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a heavy-duty differential pressure switch from the Danfoss RT series, specifically engineered for industrial and marine applications where reliability and precision are mechanical necessities. The RT 260A is designed to monitor the difference in pressure between two points in a system—typically across filters, pumps, or heat exchangers. With a regulation range of 0.5 to 4 bar, this switch ensures that machinery operates within safe parameters, triggering an alarm or shutting down the system if the pressure differential exceeds or falls below the setpoint. Its robust construction, featuring high-quality bellows and an IP66-rated housing, makes it suitable for demanding environments, including HVAC, refrigeration, and general process industries.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e017D002166\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes a sophisticated bellows system (LP bellows) capable of an operational range from -1 to 18 bar, with a maximum working pressure (PS) of 22 bar. The \"differential\" nature of this switch means it compares two separate pressure inputs via a G 3\/8 A ISO 228\/1 connection. The mechanical differential is fixed at 0.3 bar, providing a stable switching point with high repeatability. The unit features a single-pole changeover switch (SPDT), allowing it to be used for both \"make\" and \"break\" functions depending on the wiring configuration. The RT 260A is particularly valued for its high resistance to pulsation and vibration, which is critical for long-term accuracy in heavy machinery settings.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRT 260A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct No.\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e017D002166\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDanfoss\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRegulation Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.5 – 4 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMechanical Differential\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.3 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax. Working Pressure (PS)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e22 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax. Test Pressure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e25 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePressure Connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eG 3\/8 A (ISO 228\/1)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eLP Bellows Range\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-1 – 18 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProtection Rating\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP66\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the RT 260A differ from a standard pressure switch?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA standard switch monitors pressure at a single point relative to the atmosphere. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRT 260A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emeasures the difference between two pressure sources. For example, it can detect when a filter is clogged by measuring the pressure drop from the inlet to the outlet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the differential setpoint be adjusted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the main regulation range (0.5 to 4 bar) is adjustable via the internal setting knob. However, the mechanical differential (the \"reset\" gap) is fixed at 0.3 bar for this specific model to ensure consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the \"A\" in RT 260A?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn the Danfoss RT series, the \"A\" often indicates compatibility with specific media or specialized contact materials. This model is generally suitable for use with fluorinated refrigerants and ammonia (NH3), making it a versatile choice for large-scale cooling plants.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMounting and Orientation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RT 260A should be mounted on a flat surface or a bracket using the integrated mounting holes. While it can function in various positions, mounting with the bellows facing downward is a recommended engineering practice to prevent any moisture or debris in the system from settling directly on the bellows interface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePressure Connection and Sealing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit uses G 3\/8 A threads. When installing the pressure lines, use appropriate sealing washers or thread sealant compatible with the medium (e.g., oil, water, or refrigerant). Ensure that the \"High\" pressure line and \"Low\" pressure line are connected to the correct ports as marked on the device to ensure the differential logic operates as intended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Wiring and Safety:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe switch features an SPDT contact system. Use a 2-core or 3-core cable through the PG 13.5 cable gland. Ensure the gland is tightened correctly to maintain the IP66 environmental seal. In systems subject to high vibration, ensure that the electrical connections are secured with ferrules to prevent intermittent signals or arcing at the contact points.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Danfoss","offers":[{"title":"Default Title","offer_id":53102306558315,"sku":"017D002166","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/017d002166-fw4wvk1edfv.png?v=1776136873","url":"https:\/\/www.plcprotech.com\/products\/017d002166-danfoss-rt-260a-differential-pressure-switch","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}