{"product_id":"81001-451-62-r-allen-bradley-1500-amp-sgct-matched-power-set","title":"Ensemble d'alimentation assorti SGCT 1500 Amp Allen-Bradley 81001-451-62-R","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview and Medium-Voltage Switching\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e81001-451-62-R (8100145162R)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-precision, industrial-grade\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSymmetric Gate Commutated Thyristor (SGCT)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ematched set designed for use in high-power\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley PowerFlex 7000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emedium-voltage variable frequency drives (VFDs). Rated for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1500 Amps\u003c\/strong\u003e, this set is a critical power semiconductor assembly responsible for the rapid switching of electrical energy within the drive's inverter or rectifier sections. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\"-R\"\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esuffix denotes a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMatched Set\u003c\/strong\u003e, meaning these semiconductors have been factory-tested and grouped based on their specific electrical characteristics (such as forward voltage drop and turn-off time). This matching is essential for balanced current sharing in high-power circuits, ensuring that no single device carries an excessive load, which would otherwise lead to premature failure and system downtime.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHardware Architecture and Thermal Logic\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e81001-451-62-R\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eset is engineered for \"Press-Pack\" mounting, where the semiconductors are sandwiched between high-efficiency heat sinks under significant pressure.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSymmetric Gate Commutated Thyristor (SGCT):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA specialized evolution of the GTO thyristor, combining the low conduction losses of a thyristor with the fast switching capabilities of an IGBT.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMatched Parameters:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe devices in this set are paired to ensure nearly identical\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eV_f (Forward Voltage)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eQ_rr (Reverse Recovery Charge)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003echaracteristics. This prevents \"current hogging\" during high-speed switching cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Gate Driver Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned to interface directly with the drive’s gate driver boards, ensuring precise control over the turn-on and turn-off transients.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Current Handling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCapable of managing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1500 Amps\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econtinuously, provided the assembly is maintained within the specified clamping pressure and thermal limits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\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\u003e\u003cstrong\u003e81001-451-62-R\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAllen-Bradley \/ Rockwell Automation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSGCT Semiconductor Matched Set\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1500 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Class\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOptimized for 2400V - 6600V Systems\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMatched Set (Factory Balanced)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting Style\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePress-Pack \/ Hockey Puck\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCooling Requirement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eForced Air or Liquid Cooled Heat Sinks\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 125 Celsius (Junction Temperature)\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\u003e\u003cstrong\u003e2.5 kg\u003c\/strong\u003e (Heavily shielded\/protected)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eIntegrated Technical FAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is a \"Matched Set\" required instead of buying individual SGCTs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn high-power drives, multiple semiconductors often work in parallel or in complex bridge configurations. If the components have even slight variations in their electrical \"resistance\" while conducting, the current will naturally flow more through the path of least resistance. Without matching, one SGCT would heat up significantly faster than the others, causing a localized failure that often leads to a catastrophic \"cascade\" fault across the entire power stack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I verify the health of an SGCT in the field?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBasic resistance checks can identify a total short-circuit (Gate to Cathode or Anode to Cathode). However, because these are high-power devices, true health can only be determined by measuring the gate trigger current and checking for leakage at high voltage using specialized test equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix a Series A set with a Series B set?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is strongly discouraged. Always replace an SGCT set with the exact revision and matching group indicated on the original drive documentation to maintain the engineered current balance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eEngineering \u0026amp; Installation Protocols\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClamping Pressure:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e81001-451-62-R\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emust be installed using a calibrated pressure clamp. Inadequate pressure leads to high electrical and thermal resistance, while excessive pressure can crack the silicon wafer inside the \"hockey puck.\" Refer to the PowerFlex 7000 manual for the specific\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKilo-Newton (kN)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etorque requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSurface Preparation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe mating surfaces of the heat sinks must be polished to a mirror finish. Apply a thin, uniform layer of high-conductivity thermal grease (such as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDow Corning 340\u003c\/strong\u003e) to ensure optimal heat transfer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGate Driver Alignment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure the gate leads are as short as possible and securely connected. Inductance in the gate wiring can cause \"ringing,\" which may lead to erratic switching and unintended device turn-off.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEngineering Advantages\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e81001-451-62-R\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ematched set is the gold standard for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePower Density\u003c\/strong\u003e. By using SGCT technology, Allen-Bradley is able to design VFDs that are more compact and efficient than older GTO-based systems. The high-current rating of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1500 Amps\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eallows these sets to drive the massive motors found in the mining, water treatment, and oil \u0026amp; gas sectors with minimal conduction losses. The rigorous matching process ensures that the PowerFlex 7000 drive maintains its reputation for extreme reliability, providing years of service in applications where the cost of a single hour of downtime can exceed the cost of the drive itself.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695191847275,"sku":"Allen Bradley 81001-451-62-R","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-81001-451-62-r-1500-amp-sgct-matched-set-j1zyj4iudj4_ac379c7c-02c2-4181-a962-ca95b239420b.jpg?v=1766114663","url":"https:\/\/www.plcprotech.com\/fr\/products\/81001-451-62-r-allen-bradley-1500-amp-sgct-matched-power-set","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}