{"product_id":"allen-bradley-81001-408-53-r-resistor-360-ohm-100w","title":"Allen-Bradley 81001-408-53-R Resistor 360 Ohm 100W","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e81001-408-53-R\u003c\/strong\u003e is a \u003cstrong\u003e360-ohm, 100-watt power resistor\u003c\/strong\u003e manufactured by \u003cstrong\u003eAllen-Bradley (Rockwell Automation)\u003c\/strong\u003e. Engineered for industrial drive and rectifier applications, this resistor serves as a \u003cstrong\u003erectifier-side snubber\u003c\/strong\u003e to suppress voltage spikes and dampen switching transients in SCR and IGCT power circuits. Its high-wattage design ensures reliable performance under continuous pulsed load conditions.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eResistance:\u003c\/strong\u003e 360 Ohms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Rating:\u003c\/strong\u003e 100 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Power resistor \/ snubber resistor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Rectifier-side snubber for drive systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +85°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.7 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance:\u003c\/strong\u003e ±5%\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Power Dissipation:\u003c\/strong\u003e 100 W continuous rating handles repetitive switching surges in medium-voltage drive snubber circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise 360 Ohm Value:\u003c\/strong\u003e Optimized resistance for effective transient suppression in Allen-Bradley SCR drive assemblies.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSnubber Application Ready:\u003c\/strong\u003e Designed specifically for rectifier-side damping networks to protect power semiconductors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Temperature Tolerance:\u003c\/strong\u003e Operates from -40°C to +85°C without derating in standard industrial cabinets.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e Industrial-grade housing and termination withstand vibration and thermal cycling.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the purpose of the 81001-408-53-R in a drive system?\u003c\/strong\u003e\u003cbr\u003eA: It functions as a \u003cstrong\u003esnubber resistor\u003c\/strong\u003e on the rectifier side of SCR\/IGCT drives, dissipating energy from voltage spikes and protecting power semiconductors from overvoltage damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this resistor be used in non-Allen-Bradley equipment?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the 360 Ohm \/ 100 W rating is electrically universal. Verify physical mounting dimensions and terminal compatibility before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the resistor require a heat sink?\u003c\/strong\u003e\u003cbr\u003eA\u0026gt; The 100 W rating assumes free-air convection at 25°C. In enclosed cabinets or above 50°C ambient, forced-air cooling or derating is recommended.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMount the resistor in a \u003cstrong\u003ewell-ventilated area\u003c\/strong\u003e of the control cabinet, away from heat-sensitive components.\u003c\/li\u003e\n  \u003cli\u003eConnect the resistor in series with the \u003cstrong\u003esnubber capacitor\u003c\/strong\u003e across the rectifier output or SCR terminals.\u003c\/li\u003e\n  \u003cli\u003eTorque terminal screws to \u003cstrong\u003emanufacturer specification\u003c\/strong\u003e to prevent hot spots from loose connections.\u003c\/li\u003e\n  \u003cli\u003eVerify resistor temperature during commissioning with an \u003cstrong\u003einfrared thermometer\u003c\/strong\u003e under full load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSnubber Design:\u003c\/strong\u003e Pair with a capacitor value calculated for your specific drive's switching frequency and dv\/dt requirements.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWattage Margin:\u003c\/strong\u003e Ensure the 100 W rating exceeds calculated peak pulse power by at least 50% for long service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnvironmental Rating:\u003c\/strong\u003e For washdown or corrosive environments, specify an enclosure or conformal coating to protect the resistor element.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53993615163576,"sku":"81001-408-53-R","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/paste_757558405.png?v=1787815055","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-81001-408-53-r-resistor-360-ohm-100w","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}