{"product_id":"allen-bradley-81001-956-65-r-packaged-snubber-resistor-assembly","title":"Allen-Bradley 81001-956-65-R Packaged Snubber Resistor Assembly","description":"\u003ch2\u003eAllen-Bradley 81001-956-65-R Packaged Snubber Resistor Assembly\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 81001-956-65-R\u003c\/strong\u003e, also identified by the base \u003cstrong\u003e81001-956-65\u003c\/strong\u003e part designation, is a packaged snubber resistor assembly for medium-voltage drive switching circuits. It provides resistive absorption of switching transients, voltage ringing, and high-frequency energy associated with semiconductor power switching.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003e81001-956-65-R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Type\u003c\/td\u003e\n\u003ctd\u003ePackaged Snubber Resistor Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.00 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10 in (L) x 6.5 in (W) x 5.5 in (H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Rating\u003c\/td\u003e\n\u003ctd\u003e500 W to 600 W continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Resistance\u003c\/td\u003e\n\u003ctd\u003e10 ohm to 15 ohm, variant dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance\u003c\/td\u003e\n\u003ctd\u003eRoHS compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Application\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley medium-voltage AC drives, including PowerFlex 7000 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e81001-956-65-R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog\/PN\u003c\/td\u003e\n\u003ctd\u003e8100195665R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePower Switching Transient Suppression\u003c\/h3\u003e\n\u003cp\u003eThe resistor assembly forms part of the snubber network associated with medium-voltage drive power switching circuits. It absorbs transient energy generated during semiconductor switching and reduces associated voltage ringing.\u003c\/p\u003e\n\u003cp\u003eThe assembly is specified for continuous power dissipation from 500 W to 600 W. The stated resistance range is 10 ohm to 15 ohm, depending on the applicable drive configuration.\u003c\/p\u003e\n\u003cp\u003eThe resistor network can limit transient voltage stress across switching devices such as IGBTs or SGCTs. Its electrical behavior also contributes to controlling high-frequency switching effects and associated dv\/dt conditions.\u003c\/p\u003e\n\u003cp\u003eThe packaged construction provides a defined mechanical assembly for installation within the drive enclosure. The supplied dimensions are approximately 10 in x 6.5 in x 5.5 in, with a stated weight of 3.00 lb.\u003c\/p\u003e\n\u003cp\u003eThe \"-R\" designation is identified in the supplied data as indicating RoHS-compliant construction.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What resistance value is specified for the 81001-956-65-R assembly?\u003cbr\u003eA: The supplied data specifies a nominal resistance range of 10 ohm to 15 ohm, depending on drive rating.\u003c\/p\u003e\n\u003cp\u003eQ: What continuous power rating is specified for this resistor assembly?\u003cbr\u003eA: The supplied data specifies a continuous power rating between 500 W and 600 W.\u003c\/p\u003e\n\u003cp\u003eQ: Is the assembly intended for medium-voltage drive applications?\u003cbr\u003eA: Yes. The supplied data identifies Allen-Bradley medium-voltage AC drives, including PowerFlex 7000 systems, as target applications.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the resistor assembly according to the applicable drive hardware documentation and the specified mounting arrangement. Verify the installed part number against the drive configuration before energization.\u003c\/p\u003e\n\u003cp\u003eMaintain physical clearance from heat-sensitive wiring and components because the resistor dissipates substantial continuous power during operation. Do not route low-level signal wiring directly alongside the snubber power connections.\u003c\/p\u003e\n\u003cp\u003eKeep snubber conductors as short as practical and follow the drive manufacturer's specified connection routing. Avoid creating unnecessary conductor loops that can increase parasitic inductance and high-frequency voltage effects.\u003c\/p\u003e\n\u003cp\u003eTerminate protective grounding connections according to the applicable drive enclosure and electrical installation requirements. Do not use signal cable shields as substitutes for protective earth conductors.\u003c\/p\u003e\n\u003cp\u003eInspect resistor terminals, mounting hardware, insulation, and conductor routing before energizing the drive. Verify that all connections remain mechanically secure and electrically isolated from unintended conductive surfaces.\u003c\/p\u003e\n\u003cp\u003eAllow the assembly to cool before handling after operation. Thermal conditions should be evaluated from the installed drive design because the supplied data does not specify an operating temperature range.\u003c\/p\u003e","brand":"AMPHENOL","offers":[{"title":"Default Title","offer_id":43918873100378,"sku":"81001-956-65-R","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/81001-956-65-R2.jpg?v=1787816205","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-81001-956-65-r-packaged-snubber-resistor-assembly","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}