{"product_id":"new-demag-cranes-components-gmbh-gp-26089384-brake-rectifier-110v-500v-i-1-5a","title":"Demag GP 26089384 Brake Rectifier 110V-500V, ≤1.5A","description":"\u003cstyle\u003e\n  \/* Koeed Namespace CSS - Strictly isolated for Shopify integration *\/\n  .koeed-container {\n    width: 100%;\n    font-family: inherit;\n    line-height: 1.6;\n    color: #333333;\n  }\n  .koeed-heading {\n    color: #16c8c8;\n    font-size: 1.5rem;\n    font-weight: bold;\n    margin-top: 2rem;\n    margin-bottom: 1rem;\n    border-bottom: 2px solid #16c8c8;\n    padding-bottom: 0.5rem;\n  }\n  .koeed-subheading {\n    color: #16c8c8;\n    font-size: 1.25rem;\n    font-weight: 600;\n    margin-top: 1.5rem;\n    margin-bottom: 0.75rem;\n  }\n  .koeed-brief-list {\n    list-style-type: disc;\n    padding-left: 1.5rem;\n    margin-bottom: 1.5rem;\n  }\n  .koeed-brief-list li {\n    margin-bottom: 0.5rem;\n  }\n  .koeed-table-wrapper {\n    overflow-x: auto;\n    width: 100%;\n    margin-bottom: 1.5rem;\n  }\n  .koeed-tech-table {\n    width: 100%;\n    border-collapse: collapse;\n    text-align: left;\n    font-size: 0.95rem;\n  }\n  .koeed-tech-table th, .koeed-tech-table td {\n    border: 1px solid #eeeeee;\n    padding: 12px 15px;\n  }\n  .koeed-tech-table th {\n    background-color: #16c8c8;\n    color: #ffffff;\n    font-weight: 600;\n  }\n  .koeed-tech-table tr:nth-child(even) {\n    background-color: #f4fcfc;\n  }\n  .koeed-tech-table tr:nth-child(odd) {\n    background-color: #fafafa;\n  }\n  .koeed-tool-box {\n    background-color: #f4fcfc;\n    border: 1px solid #16c8c8;\n    border-radius: 8px;\n    padding: 1.5rem;\n    margin: 2rem 0;\n  }\n  .koeed-form-group {\n    margin-bottom: 1rem;\n  }\n  .koeed-form-group label {\n    display: block;\n    font-weight: 600;\n    margin-bottom: 0.5rem;\n    color: #333333;\n  }\n  .koeed-form-group input, .koeed-form-group select {\n    width: 100%;\n    padding: 0.75rem;\n    border: 1px solid #cccccc;\n    border-radius: 4px;\n    font-family: inherit;\n    background-color: #ffffff;\n  }\n  .koeed-btn {\n    background-color: #16c8c8;\n    color: #ffffff;\n    border: none;\n    padding: 0.75rem 1.5rem;\n    font-size: 1rem;\n    font-weight: bold;\n    border-radius: 4px;\n    cursor: pointer;\n    transition: background-color 0.3s ease;\n  }\n  .koeed-btn:hover {\n    background-color: #12a6a6;\n  }\n  .koeed-result-box {\n    margin-top: 1.5rem;\n    padding: 1rem;\n    background-color: #ffffff;\n    border-left: 4px solid #16c8c8;\n  }\n  .koeed-faq-item {\n    margin-bottom: 1.25rem;\n  }\n  .koeed-faq-question {\n    font-weight: bold;\n    color: #333333;\n    margin-bottom: 0.25rem;\n  }\n  .koeed-faq-answer {\n    color: #555555;\n  }\n  .koeed-alert {\n    background-color: #fff4e5;\n    border-left: 4px solid #ff9800;\n    padding: 1rem;\n    margin: 1rem 0;\n    font-size: 0.95rem;\n    color: #663c00;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"koeed-container\"\u003e\n\n  \u003c!-- 1. Engineer's Quick Brief --\u003e\n  \u003ch2 class=\"koeed-heading\"\u003eEngineer's Quick Brief\u003c\/h2\u003e\n  \u003cul class=\"koeed-brief-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUltra-Wide Voltage Compatibility:\u003c\/strong\u003e Rated for a massive AC input range of \u003cstrong\u003e110V to 500V\u003c\/strong\u003e, making it universally adaptable to global industrial power grids (from North American 120V\/480V to European 400V systems).\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh Current Capacity:\u003c\/strong\u003e Sustains a continuous output current of \u003cstrong\u003e1.5A\u003c\/strong\u003e, providing robust power conversion suitable for heavy-duty conical rotor motors and large cylindrical hoist brake coils.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrimary Application:\u003c\/strong\u003e Direct OEM replacement component for \u003cstrong\u003eDemag Cranes, hoists, and material handling equipment\u003c\/strong\u003e to ensure reliable fail-safe electromagnetic braking.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- 2. SEO Introduction --\u003e\n  \u003ch2 class=\"koeed-heading\"\u003eProduct Overview\u003c\/h2\u003e\n  \u003cp\u003eThe \u003cstrong\u003eDemag GP 26089384 Brake Rectifier\u003c\/strong\u003e is a premium industrial solid-state power module engineered specifically for lifting and material handling technology. Manufactured by Demag Cranes \u0026amp; Components GmbH, this critical safety device converts alternating current (AC) from the main power supply into the direct current (DC) required to release the electromagnetic holding brake on hoist motors. Featuring a highly versatile input tolerance of \u003cstrong\u003e110V-500V AC\u003c\/strong\u003e and a robust \u003cstrong\u003e1.5 Ampere\u003c\/strong\u003e capacity, the 26089384 rectifier is heavily potted to withstand the severe vibration, dust, and temperature fluctuations inherent to overhead bridge crane operations.\u003c\/p\u003e\n\n  \u003c!-- 3. Technical Specifications --\u003e\n  \u003ch2 class=\"koeed-heading\"\u003eTechnical Specifications\u003c\/h2\u003e\n  \n  \u003cdiv class=\"koeed-alert\"\u003e\n    \u003cstrong\u003eWiring Safety Note:\u003c\/strong\u003e Demag rectifiers are precision safety components. Always verify your specific motor's wiring diagram (typically located inside the motor terminal box cover) before applying power. Incorrect connection across the AC lines to the DC brake coil will cause catastrophic failure of the diodes.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"koeed-table-wrapper\"\u003e\n    \u003ctable class=\"koeed-tech-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eSpecification Parameter\u003c\/th\u003e\n          \u003cth\u003eRating \/ Description\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\u003eDemag Cranes \u0026amp; Components GmbH\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003ePart Number \/ Reference\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e26089384 (Series GP)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eElectronic Motor Brake Rectifier Block\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eInput Voltage Range (AC)\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e\n\u003cstrong\u003e110V - 500V AC\u003c\/strong\u003e (50\/60 Hz)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eMaximum Output Current\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003e\n\u003cstrong\u003e1.5 A\u003c\/strong\u003e (Continuous)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eLoad Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eInductive Loads (DC Electromagnetic Brake Coils)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eEnvironmental Protection\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eEpoxy Resin Encapsulated (Vibration \u0026amp; Moisture Resistant)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd\u003eNew, 1 Piece\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- 4. Application Matrix --\u003e\n  \u003ch2 class=\"koeed-heading\"\u003eIndustrial Application Matrix\u003c\/h2\u003e\n  \u003cp\u003eAs a core component in material handling, the Demag 26089384 is utilized in safety-critical lifting applications:\u003c\/p\u003e\n  \u003cul class=\"koeed-brief-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOverhead Bridge Cranes:\u003c\/strong\u003e Controlling the main hoist and cross-travel trolley brakes to ensure precise load positioning and fail-safe holding during power outages.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKBK Light Crane Systems:\u003c\/strong\u003e Integrated into Demag chain hoists for ergonomic manufacturing assembly lines.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeavy Winch Systems:\u003c\/strong\u003e Providing reliable DC actuation for heavy-duty friction brakes in steel mills and automotive plants.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- 5. Koeed B2B Tool: Crane Brake Voltage Configurator --\u003e\n  \u003ch2 class=\"koeed-heading\"\u003eKoeed Crane Brake Voltage Configurator\u003c\/h2\u003e\n  \u003cp\u003eReplacing a rectifier or installing a new hoist? Use this tool to calculate the required DC brake coil voltage based on your facility's specific AC grid voltage. \u003cem\u003e(Standard calculations based on inductive load rectification multipliers).\u003c\/em\u003e\u003c\/p\u003e\n  \n  \u003cnoscript\u003e\n    \u003cp\u003e\u003cem\u003ePlease enable JavaScript in your browser to use the interactive Brake Voltage Configurator.\u003c\/em\u003e\u003c\/p\u003e\n  \u003c\/noscript\u003e\n\n  \u003cdiv class=\"koeed-tool-box\" id=\"koeed-crane-tool\"\u003e\n    \u003cdiv class=\"koeed-form-group\"\u003e\n      \u003clabel for=\"koeed-ac-grid\"\u003eFacility AC Input Voltage (Volts):\u003c\/label\u003e\n      \u003cinput type=\"number\" id=\"koeed-ac-grid\" value=\"480\" placeholder=\"e.g., 110, 230, 400, 480\"\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"koeed-form-group\"\u003e\n      \u003clabel for=\"koeed-rect-type\"\u003eRectification Circuit Type:\u003c\/label\u003e\n      \u003cselect id=\"koeed-rect-type\"\u003e\n        \u003coption value=\"half\"\u003eHalf-Wave Rectification (Most Common for Brakes)\u003c\/option\u003e\n        \u003coption value=\"full\"\u003eFull-Wave Rectification\u003c\/option\u003e\n      \u003c\/select\u003e\n    \u003c\/div\u003e\n    \n    \u003cbutton class=\"koeed-btn\" onclick=\"koeedCalcDemagVoltage()\"\u003eCalculate Required Coil Voltage\u003c\/button\u003e\n    \n    \u003cdiv class=\"koeed-result-box\" id=\"koeed-demag-result\" style=\"display: none;\"\u003e\n      \u003c!-- Results will be injected here via JS --\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- 6. Troubleshooting \u0026 FAQ --\u003e\n  \u003ch2 class=\"koeed-heading\"\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \n  \u003cdiv class=\"koeed-faq-item\"\u003e\n    \u003cdiv class=\"koeed-faq-question\"\u003e1. How do I test if my Demag 26089384 rectifier has failed?\u003c\/div\u003e\n    \u003cdiv class=\"koeed-faq-answer\"\u003eUsing a digital multimeter set to DC Voltage, carefully measure the output terminals connected to the brake coil while the AC power is applied (e.g., when pressing the pendant control). If your AC supply is present but the DC output is 0V or highly erratic, the internal diode bridge has blown. \u003cem\u003eAlways follow strict lockout\/tagout (LOTO) procedures when dealing with crane electronics.\u003c\/em\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"koeed-faq-item\"\u003e\n    \u003cdiv class=\"koeed-faq-question\"\u003e2. The crane motor hums but will not lift, and the brake smells like burning. Is it the rectifier?\u003c\/div\u003e\n    \u003cdiv class=\"koeed-faq-answer\"\u003eIt is highly likely. If the rectifier fails to output DC power, the mechanical brake remains engaged (locked shut by springs). The hoist motor attempts to drive against the locked brake, generating severe friction and heat. Immediately inspect the rectifier output and the physical brake air gap.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"koeed-faq-item\"\u003e\n    \u003cdiv class=\"koeed-faq-question\"\u003e3. Can I use this on a 480V US power grid?\u003c\/div\u003e\n    \u003cdiv class=\"koeed-faq-answer\"\u003eYes, the Demag 26089384 is rated up to 500V AC input, making it fully compatible with 480V industrial grids. However, you must ensure that your hoist's brake coil is rated for the resulting DC voltage (typically around ~216V DC for a half-wave rectified 480V AC supply).\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- 7. Cross-Reference \u0026 Selection --\u003e\n  \u003ch3 class=\"koeed-subheading\"\u003eCross-Reference Guide\u003c\/h3\u003e\n  \u003cp\u003eIf you are managing a fleet of lifting equipment, the Demag 26089384 (GP Series) shares operational envelopes with other premium industrial rectifiers. Verify mounting dimensions and current limits (1.5A) before substitution:\u003c\/p\u003e\n  \u003cul class=\"koeed-brief-list\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDemag Legacy Replacements:\u003c\/strong\u003e Often supersedes older blue or black Demag rectifier blocks with identical voltage ratings.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSEW Eurodrive Alternative:\u003c\/strong\u003e Similar to BGE or BG series brake rectifiers used in heavy gearmotors (ensure voltage\/current match).\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLenze Equivalent:\u003c\/strong\u003e Standard half-wave modules utilized in automated braking applications.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- Interactive Tool JavaScript --\u003e\n\u003cscript\u003e\n  function koeedCalcDemagVoltage() {\n    var acInput = parseFloat(document.getElementById('koeed-ac-grid').value);\n    var rectType = document.getElementById('koeed-rect-type').value;\n    var resultBox = document.getElementById('koeed-demag-result');\n    \n    if (isNaN(acInput) || acInput \u003c 10 || acInput \u003e 600) {\n      resultBox.style.display = 'block';\n      resultBox.innerHTML = '\u003cstrong\u003eError:\u003c\/strong\u003e Please enter a valid industrial AC voltage (e.g., between 24 and 500).';\n      return;\n    }\n\n    var dcOutput = 0;\n    var multiplier = 0;\n    var modeText = \"\";\n\n    if (rectType === 'half') {\n      multiplier = 0.45;\n      modeText = \"Half-Wave Rectification\";\n    } else {\n      multiplier = 0.90;\n      modeText = \"Full-Wave Rectification\";\n    }\n\n    dcOutput = Math.round(acInput * multiplier);\n\n    \/\/ Warning logic if user exceeds the 500V max rating of the product\n    var warningHtml = \"\";\n    if (acInput \u003e 500) {\n      warningHtml = '\u003cdiv style=\"color: #ff0000; margin-top: 10px; font-weight: bold;\"\u003eWarning: Your entered AC voltage (' + acInput + 'V) exceeds the maximum rated input of 500V for the Demag 26089384.\u003c\/div\u003e';\n    }\n\n    resultBox.style.display = 'block';\n    resultBox.innerHTML = '\u003ch3 style=\"color: #16c8c8; margin-top: 0;\"\u003eConfiguration Results\u003c\/h3\u003e' +\n                          '\u003cp\u003e\u003cstrong\u003eGrid Supply:\u003c\/strong\u003e ' + acInput + 'V AC\u003c\/p\u003e' +\n                          '\u003cp\u003e\u003cstrong\u003eRectifier Mode:\u003c\/strong\u003e ' + modeText + ' (Multiplier: ' + multiplier + ')\u003c\/p\u003e' +\n                          '\u003cp style=\"font-size: 1.1rem; background-color: #f0f0f0; padding: 10px; border-left: 4px solid #333;\"\u003e\u003cstrong\u003e\u0026#8627; Required Brake Coil Voltage: ~' + dcOutput + 'V DC\u003c\/strong\u003e\u003c\/p\u003e' +\n                          '\u003cp style=\"font-size: 0.85rem; color: #666;\"\u003e\u003cem\u003eNote: It is normal for brake coils to be rated slightly higher or lower (e.g., a calculated 216V output is typically matched with a 205V DC coil). Verify coil nameplate data.\u003c\/em\u003e\u003c\/p\u003e' +\n                          warningHtml;\n  }\n\u003c\/script\u003e\n\n\u003c!-- GEO Structured Data (JSON-LD) --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n[\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n      {\n        \"@type\": \"Question\",\n        \"name\": \"How do I test if my Demag 26089384 rectifier has failed?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Using a digital multimeter set to DC Voltage, carefully measure the output terminals connected to the brake coil while the AC power is applied. If your AC supply is present but the DC output is 0V or highly erratic, the internal diode bridge has blown. Always follow strict LOTO procedures.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"The crane motor hums but will not lift, and the brake smells like burning. Is it the rectifier?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"It is highly likely. If the rectifier fails to output DC power, the mechanical brake remains engaged. The hoist motor attempts to drive against the locked brake, generating severe friction and heat. Inspect the rectifier output and the physical brake air gap immediately.\"\n        }\n      },\n      {\n        \"@type\": \"Question\",\n        \"name\": \"Can I use the Demag 26089384 brake rectifier on a 480V power grid?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Yes, the Demag 26089384 is rated up to 500V AC input, making it fully compatible with 480V industrial grids. However, you must ensure that your hoist's brake coil is rated for the resulting DC voltage (typically around 216V DC for a half-wave rectified 480V AC supply).\"\n        }\n      }\n    ]\n  },\n  {\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"WebApplication\",\n    \"name\": \"Koeed Crane Brake Voltage Configurator\",\n    \"url\": \"https:\/\/koeed.com\",\n    \"description\": \"An interactive engineering tool designed to calculate the required DC electromagnetic brake coil voltage for crane and hoist motors based on the facility's available AC grid voltage and rectification mode.\",\n    \"applicationCategory\": \"EngineeringApplication\",\n    \"operatingSystem\": \"All\",\n    \"browserRequirements\": \"Requires JavaScript\"\n  }\n]\n\u003c\/script\u003e","brand":"DEMAG","offers":[{"title":"Default Title","offer_id":44566288826553,"sku":"235566237069","price":144.43,"currency_code":"USD","in_stock":true}],"url":"https:\/\/koeed.com\/da\/products\/new-demag-cranes-components-gmbh-gp-26089384-brake-rectifier-110v-500v-i-1-5a","provider":"KOEED","version":"1.0","type":"link"}