{"product_id":"yokogawa-pw302-s4-power-supply","title":"Yokogawa PW302 S4 Power Supply","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa PW302 S4\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003ePW302\u003c\/strong\u003e Power Supply Module, operates as a dedicated hardware component for regulated DC electrical distribution within CENTUM process control system networks. It converts line-level AC power into isolated DC voltage rails required to energize field instruments and system node backplanes.\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\u003ePW302 S4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\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\u003e3.6 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11 cm x 28 cm x 26 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 50 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e84 W output (Efficiency \u0026gt;= 92%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e220-240 VAC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC (regulated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e3.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Mode\u003c\/td\u003e\n\u003ctd\u003eLess than 0.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol \u0026amp; Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe PW302 S4 module delivers clean 24 VDC excitation power to analog field devices and control station backplane components. Standardized galvanic isolation inside the power conversion stage prevents ground loops and high-frequency noise from passing between mains power distribution lines and sensitive analog processing hardware. This isolated voltage rail helps preserve signal integrity across 4-20 mA HART instrumentation loops and downstream I\/O cards, preventing drift or channel crosstalk.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What protection measures exist to prevent field noise from entering the control backplane through the PW302 S4?\u003c\/p\u003e\n\u003cp\u003eA: The module relies on internal transformer-based galvanic isolation between the AC mains input and the 24 VDC output rails to block common-mode noise and prevent ground potential differences from affecting control instrumentation.\u003c\/p\u003e\n\u003cp\u003eQ: Can the PW302 S4 be installed in harsh open-air field environments without an enclosure?\u003c\/p\u003e\n\u003cp\u003eA: No, the PW302 S4 carries an IP20 protection rating, requiring installation inside a sealed, dust-free industrial control cabinet or junction box to protect internal circuitry against moisture and solid ingress.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the module vertically inside an IP54 or higher rated control cabinet to ensure adequate convective air circulation through the IP20 housing vents.\u003c\/li\u003e\n\u003cli\u003eConnect the earth ground cable to the primary chassis earthing terminal before applying 220-240 VAC mains wiring to the power terminals.\u003c\/li\u003e\n\u003cli\u003eKeep AC power supply wiring separated from sensitive 4-20 mA instrument cables inside cabinet wire ducts to minimize electromagnetic interference.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52608892141848,"sku":"PW302 S4","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/PW702_1200x1200_67700fe2-dac0-4343-b91a-1576820a8745.jpg?v=1788426000","url":"https:\/\/www.innoplcsync.com\/products\/yokogawa-pw302-s4-power-supply","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}