{"product_id":"yuken-pst-02-h-20-hydraulic-pressure-switch","title":"YUKEN PST-02-H-20 Hydraulic Pressure Switch","description":"\u003cp\u003eThe \u003cstrong\u003eYuken PST-02-H-20\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePST-02-H-20\u003c\/strong\u003e Hydraulic Pressure Switch, serves as the primary \u003cstrong\u003ePST-02\u003c\/strong\u003e pressure monitoring component utilized to execute localized discrete signal routing across high-pressure hydraulic manifold platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePST-02-H-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYuken Hydraulics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard compact metal block allocation metrics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eSlim-profile space-saving subplate or inline mounting structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eCalibrated for standard industrial fluid windows (-15 to 60 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePure mechanical\/electrical contact execution; zero auxiliary logic power required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitch Type\u003c\/td\u003e\n\u003ctd\u003ePiston or diaphragm actuated micro-switch mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePressure Adjust Range\u003c\/td\u003e\n\u003ctd\u003eH-range (High-pressure specification tier)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Application\u003c\/td\u003e\n\u003ctd\u003ePressure monitoring and control in hydraulic systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eDurable metal housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Drive and Fluid Integration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eV\/Hz and Field-Oriented Vector Control:\u003c\/strong\u003e This discrete pressure switch operates parallel to variable displacement hydraulic pump stations governed by V\/Hz and field-oriented vector control drives. While the AC drive dynamically matches pump speed to system load, the PST-02-H-20 acts as an independent hardware interlock to flag peak overpressure states directly from the fluid tier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarmonic Distortion Suppression:\u003c\/strong\u003e The internal mechanical micro-switch contacts process clean DC or AC control voltages. Because it lacks sensitive onboard semiconductor chips, the hardware maintains absolute immunity to high-frequency electromagnetic interference, eliminating the need for specialized harmonic distortion suppression filters on its local terminal lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Heat Sink Dissipation Profiles:\u003c\/strong\u003e The durable metal housing uses the continuous fluid volume flowing through the valve block or manifold as a primary temperature stabilizer. The mechanical frame relies on subplate metal-to-metal contact to form structural thermal heat sink dissipation profiles, keeping internal micro-switch spring components within stable operating boundaries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What specific electrical contact behavior manifests if the hydraulic line pressure rises beyond the calibrated setpoint?\u003c\/p\u003e\n\u003cp\u003eA: The internal fluid force overcomes the preset mechanical spring tension, moving an internal piston to actuate the micro-switch. This action instantly changes the contact states, shifting the normally closed (NC) contacts to open and the normally open (NO) contacts to closed to break or complete the control circuit.\u003c\/p\u003e\n\u003cp\u003eQ: Can the pressure setting adjustment bolt be unlocked or altered while the hydraulic system is operating at full pressure?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the external hex adjusting screw and locking nut are mechanically isolated from the high-pressure fluid path by internal dynamic seals. Technicians can adjust the spring tension under active line pressure while tracking a calibrated master pressure gauge to set the exact trip point.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Layout Alignment, Clearance Constraints, and Mechanical Seating:\u003c\/strong\u003e Shut down the hydraulic pump unit and dump all accumulator energy until line pressure drops to zero. Align the pressure switch port with the subplate or inline pipe interface, verify that the elastomeric O-ring seal sits squarely in its groove, and tighten the mounting bolts uniformly to ensure correct mechanical seating and a leak-free interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Separation, Wireway Constraints, and Shield Grounding:\u003c\/strong\u003e Route the switch's electrical control cabling inside separate, grounded conduits isolated from high-voltage AC motor wires to block external inductive noise injection. Connect the terminal block ground screw straight to the system enclosure's copper earth busbar to maintain standard common-mode noise shunting.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yuken Hydraulics","offers":[{"title":"Default Title","offer_id":45136078504051,"sku":"PST-02-H-20","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-26_16-17-46.png?v=1782466464","url":"https:\/\/www.dcssupplier.com\/ar\/products\/yuken-pst-02-h-20-hydraulic-pressure-switch","provider":"DcsSupplier Limited","version":"1.0","type":"link"}