{"product_id":"5501-381-woodward-tmr-power-supply-unit","title":"5501-381 | Woodward | TMR Power Supply Unit","description":"\u003cp\u003eConfigured for high-voltage power regulation in MicroNet TMR control systems, the \u003cstrong\u003eWoodward 5501-381\u003c\/strong\u003e (\u003cstrong\u003e5009\/MicroNet\u003c\/strong\u003e Triple Module Redundant Power Supply) provides direct electrical execution of 220 VAC to DC power conversion.\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\u003e5501-381\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e22 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e1250 VA (Max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e220 VAC (47-63 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Current\u003c\/td\u003e\n\u003ctd\u003e6.7 A (Max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eThermal Heat Sink Dissipation Profiles and Load Regulation\u003c\/h3\u003e\n\u003cp\u003eThe 5501-381 utilizes dedicated internal thermal heat sink dissipation profiles to manage the 1250 VA power load during continuous operation. The module provides harmonic distortion suppression on the AC input stage to maintain clean DC rail output for critical controller logic. In TMR configurations, the unit must be paired across separate chassis and linked via ribbon cabling to maintain redundancy. The internal circuitry is optimized to ensure that actuator loop feedback response remains stable during AC input frequency fluctuations within the 47-63 Hz range. Proper ventilation is required to prevent thermal triggers of the integrated overtemperature protection circuit.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 5501-381 support hot-swapping during normal controller operation?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The board is designed for hot-replacement, allowing the module to be removed and installed without requiring the control chassis to cease operation, provided the secondary redundant supply is active.\u003c\/p\u003e\n\u003cp\u003eQ: What do the four status LEDs on the front faceplate indicate?\u003c\/p\u003e\n\u003cp\u003eA: The LEDs monitor Input Fault, Power Supply Fault, Overtemperature, and OK status. The green OK LED remains illuminated only when the power supply is operating within nominal parameters with no active internal or external faults.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Requirements:\u003c\/strong\u003e Install the board within the MicroNet TMR power supply chassis. If dual boards are used for redundancy, they must be housed in separate chassis and interconnected via the specified ribbon cabling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercurrent Protection:\u003c\/strong\u003e The input circuit requires a 10 A time-delay fuse or breaker to ensure adequate protection against inrush current transients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Ensure the 220 VAC input is securely terminated. Follow all local electrical codes regarding high-voltage AC cabling separation from low-voltage signal lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatus Monitoring:\u003c\/strong\u003e Regularly verify the LED status. If the Power Supply Fault or Overtemperature LED is active, perform an immediate thermal inspection and check input voltage stability.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":53005186335029,"sku":"5501-381","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/5501-381.png?v=1781593025","url":"https:\/\/www.5gplc.com\/products\/5501-381-woodward-tmr-power-supply-unit","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}