{"product_id":"621-9934c-honeywell-ipc-620-power-supply-board","title":"621-9934C | Honeywell | IPC 620 Power Supply Board","description":"\u003cp\u003eConfigured for internal DC voltage regulation and power distribution in IPC 620 systems, the \u003cstrong\u003eHoneywell 621-9934C\u003c\/strong\u003e (\u003cstrong\u003e621-9934\u003c\/strong\u003e Power Supply Board) provides direct physical\/electrical execution. The assembly converts an incoming AC supply voltage of 115 VAC or 230 VAC into a regulated 24 VDC bus output to drive logic managers and adjacent I\/O cards across the rack backplane. Weighing approximately 1.45 kg, the module incorporates internal overload protection circuits and ripple filtering stages to enforce steady-state voltage delivery within industrial control racks.\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\u003e621-9934C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.45 kg (3.20 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e264 mm x 32 mm x 127 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePower supply module (regulated 24 VDC output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e115 VAC or 230 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003eRegulated 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Features\u003c\/td\u003e\n\u003ctd\u003eLow ripple output and overcurrent overload protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell IPC 620 \/ Universal Control Network (UCN)\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 621-9934C utilizes isolated transformer topology and output filtering networks to decouple high-voltage AC mains from internal DC logic rails. When providing 24 VDC power to analog I\/O modules processing 4-20 mA HART loop protocol signals, the assembly maintains tight output regulation and suppresses high-frequency power supply noise. This filtering preserves channel-to-channel isolation parameters on field I\/O channels, preventing power rail noise from inducing measurement shifts in analog input registers.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the input voltage selection between 115 VAC and 230 VAC configured on the 621-9934C circuit board?\u003c\/p\u003e\n\u003cp\u003eA: Input voltage selection is established via hardware terminal wiring jumpers or on-board voltage selection pins prior to applying AC mains power.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 621-9934C power supply board be removed from the rack while main AC power is applied?\u003c\/p\u003e\n\u003cp\u003eA: No, AC mains supply must be disconnected and de-energized before removing or installing the power supply card to prevent arc flash and equipment damage.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDe-energize and lock out main AC input power lines leading to the IPC 620 control rack.\u003c\/li\u003e\n\u003cli\u003eVerify that the AC input voltage jumper configuration on the board matches the local 115 VAC or 230 VAC supply level.\u003c\/li\u003e\n\u003cli\u003eSlide the 621-9934C printed circuit board smoothly into its dedicated rack slot along the guide rails until edge connectors seat completely into the backplane socket.\u003c\/li\u003e\n\u003cli\u003eTighten front panel retaining screws to secure the module and maintain chassis earth ground continuity before applying power.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53626182861109,"sku":"621-9934C","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/621-9934C_Cocoai.png?v=1790060264","url":"https:\/\/www.5gplc.com\/products\/621-9934c-honeywell-ipc-620-power-supply-board","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}