{"product_id":"allen-bradley-81001-956-53-r-snubber-resistor-assembly","title":"Allen-Bradley 81001-956-53-R Snubber Resistor Assembly","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 81001-956-53-R\u003c\/strong\u003e is a high-power \u003cstrong\u003eSnubber Resistor Assembly\u003c\/strong\u003e (\u003cstrong\u003ePKG SNUBR RES ASSY,800W,45-OHM\u003c\/strong\u003e) designed for industrial drive systems and power electronics applications. It operates as a protective hardware component that suppresses transient voltage spikes ($dv\/dt$) and absorbs excess electrical energy during rapid switching cycles. This protection mechanism helps safeguard sensitive semiconductor devices, including Insulated-Gate Bipolar Transistors (IGBTs) and Silicon Controlled Rectifiers (SCRs), against potential voltage overshoot. Deployed in industrial variable frequency drives (VFDs) or large servo controllers, the assembly converts high-energy pulses into thermal energy, mitigating electrical stress across the system circuitry.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransient Suppressing Design\u003c\/strong\u003e: Limits rapid voltage changes ($dv\/dt$) and voltage overshoot to prevent damage to downstream semiconductor power modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Thermal Management Capability\u003c\/strong\u003e: Engineered to absorb repeated high-energy pulses and safely dissipate the accumulated load as heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Assembly Integration\u003c\/strong\u003e: Delivered as a complete resistor assembly package optimized for integration with industrial power electronics systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDynamic braking and snubber circuitry within industrial variable frequency drives (VFDs).\u003c\/li\u003e\n\u003cli\u003eRegenerative energy absorption during heavy motor deceleration phases.\u003c\/li\u003e\n\u003cli\u003eProtection loops for IGBT, SCR, and other high-power semiconductor module switching paths.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical 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\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number \/ Product ID\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e81001-956-53-R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSnubber Resistor Assembly (PKG SNUBR RES ASSY)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Status\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eActive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Positioning\u003c\/strong\u003e: Mount the resistor assembly in an area with sufficient ventilation and clearance from heat-sensitive components, as the unit dissipates up to 800W of heat during high-load operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e: Ensure all upstream power feeds are disconnected, and verify that all system capacitors are completely discharged before handling or installing the hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Security\u003c\/strong\u003e: Terminal connections must be tightened securely according to factory torque standards to minimize contact resistance under high-current pulses.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695179067755,"sku":"81001-956-53-R","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-81001-956-53-r-snubber-resistor-assembly-3h0d4widakg_d15f522e-63df-4d07-a953-6d3672595c94.jpg?v=1766114232","url":"https:\/\/www.plcprotech.com\/fa\/products\/allen-bradley-81001-956-53-r-snubber-resistor-assembly","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}