{"product_id":"061b100966-danfoss-bellows-pressure-switch-0-2-to-1-0-bar","title":"061B100966 Danfoss Bellows Pressure Switch (-0.2 to 1.0 bar)","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e061B100966 (061B100966)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a professional-grade industrial pressure switch from Danfoss, engineered for high-sensitivity monitoring in low-pressure and vacuum systems. Utilizing a specialized bellows sensing element, this switch provides reliable mechanical switching logic within a range of -0.20 to 1.00 bar. It is primarily used as a safety or regulatory component to monitor air, gas, or fluid pressures in applications such as industrial boiler systems, vacuum pumps, and ventilation units. With a robust IP65-rated housing and a high maximum working pressure (Pe) of 15 bar, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e061B100966\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eensures long-term operational stability even in environments prone to dust, moisture, and unexpected system pressure surges.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e061B100966\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis defined by a modular technical specification designed for precision:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBellows Sensing Element:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe internal bellows provide a large surface area for pressure detection, allowing the switch to respond to minute fluctuations in pressure or vacuum with high repeatability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBroad Safety Margin:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite its low operating range (up to 1.0 bar), the unit is rated for a maximum working pressure (Pe) of 15.0 bar, protecting the sensing element from damage during system pressure tests.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial Standard Connections:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFeatures a standard G-threaded pressure connection and a Pg 11 electrical cable gland, facilitating easy integration into existing industrial piping and wiring infrastructures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe IP65 enclosure rating ensures the device is dust-tight and protected against low-pressure water jets, making it suitable for damp mechanical rooms or outdoor sheltered installations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\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\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e061B100966\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\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\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBellows Pressure Switch\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSetting Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-0.20 to 1.00 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Working Pressure (Pe)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15.0 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePressure Connection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eG-type (Threaded)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Connection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePg 11 (Cable Gland)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP65\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAmbient Temp Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40 to 70 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 1.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 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 a bellows-type sensing element differ from a piston or diaphragm?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBellows elements are highly flexible and provide a significant range of motion even at very low pressures. This makes the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e061B100966\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emuch more sensitive and accurate for low-pressure\/vacuum applications compared to a piston (which is for high pressure) or a simple diaphragm (which has less travel).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this switch be used for \"Vacuum Break\" monitoring?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Since the range starts at -0.20 bar, it is specifically designed to detect when a system loses its vacuum or fails to maintain the required negative pressure, triggering a pump or an alarm as needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the \"66\" setting range code?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn Danfoss nomenclature, \"66\" refers to a specialized or \"Other\" setting range. In this case, it indicates the specific calibration of -0.20 to 1.00 bar, which falls outside the standard high-pressure ranges typically found in heavy industrial switches.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Strategy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor best results, mount the switch with the pressure connection facing downwards. This prevents any moisture or process condensate from settling inside the bellows, which could lead to corrosion or calibration drift over time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Sealing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo maintain the IP65 rating, ensure that the Pg 11 cable gland is tightened firmly against the cable jacket. Use a cable with an outer diameter that matches the gland’s sealing range to prevent water ingress into the terminal chamber.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring for Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe switch typically utilizes SPDT (Single Pole Double Throw) contacts. You can wire it to \"break\" the circuit on rising pressure (for compressor control) or to \"make\" the circuit on falling pressure (for low-limit alarms). Always verify the contact ratings against your control voltage (e.g., 230V AC vs 24V DC).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Danfoss","offers":[{"title":"Default Title","offer_id":53102415872363,"sku":"061B100966ÿ","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/061b100966-342ytx4czuu.png?v=1776136967","url":"https:\/\/www.plcprotech.com\/products\/061b100966-danfoss-bellows-pressure-switch-0-2-to-1-0-bar","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}