{"product_id":"grundfos-mms-8-in-10-in-submersible-motor","title":"Grundfos MMS8000 and MMS10000 8 in and 10 in Submersible Motor","description":"\u003c!-- TABS --\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cdiv class=\"gs\"\u003e\n\n\u003cdiv class=\"gs-head\"\u003e\n\u003cdiv class=\"gs-eyebrow\"\u003eGrundfos · Submersible Motor\u003c\/div\u003e\n\u003cdiv class=\"gs-title\"\u003eMMS8000 and MMS10000 8 in and 10 in Motors\u003c\/div\u003e\n\u003cdiv class=\"gs-sub\"\u003e20 builds, 40 to 250 HP, 460V three-phase: rewindable MMS motors for 8 in and larger wells, in standard and 316 stainless steel construction.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-badges\"\u003e\n\u003cdiv class=\"gs-badge\"\u003e40-250 HP · 8 and 10 in Motor\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e460V 3Ph\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e13,000 lb Max Thrust\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003eRewindable\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003eStandard or 316 Stainless Steel\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e8 in: 43.7-81.1 in L · 10 in: 73.6-94.5 in L\u003c\/div\u003e\n\u003cdiv class=\"gs-badge\"\u003e361.6-1,360.3 lb Weight\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eOverview\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\n\u003cp\u003eGrundfos MMS rewindable submersible motors for heavy-duty 8 in and larger wells: the MMS8000 (40 to 150 HP, 8 in) and MMS10000 (175 to 250 HP, 10 in), all 460V three-phase with 13,000 lb of thrust, each priced and supplied with its motor lead. They are the motors behind the Grundfos SP 385S to 1100S pumps and the 90S sleeve builds, in standard construction or in 316 stainless steel for aggressive water.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRewindable: pure copper windings with a non-hygroscopic thermoplastic sheath, cooled by direct contact with the motor liquid\u003c\/li\u003e\n\u003cli\u003e13,000 lb maximum thrust on every build, 40 to 250 HP\u003c\/li\u003e\n\u003cli\u003eStandard and 316 stainless steel builds at every horsepower\u003c\/li\u003e\n\u003cli\u003eTemperature sensors available, read by a Grundfos \u003ca href=\"\/products\/grundfos-mp-204-motor-protector\"\u003eMP 204 motor protector\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#FFFFFF;border:1px solid #C7CBD1;border-top:3px solid #B3122A;padding:12px 16px 12px;margin:16px 0 4px;font-size:13.5px;line-height:1.55;color:#4A4A4F\"\u003e\n\u003cdiv style=\"font-family:Arial Black,Arial,sans-serif;font-size:11px;letter-spacing:1.2px;text-transform:uppercase;color:#B3122A;margin-bottom:8px\"\u003eWhat Ships and What It Needs to Run\u003c\/div\u003e\n\u003cp style=\"margin:0 0 6px\"\u003e\u003cstrong style=\"color:#B3122A\"\u003eIncluded:\u003c\/strong\u003e the motor and its motor lead (Grundfos prices the MMS motors with lead).\u003c\/p\u003e\n\u003cp style=\"margin:0 0 6px\"\u003e\u003cstrong style=\"color:#B3122A\"\u003ePump end required, ordered separately.\u003c\/strong\u003e An 8 in or 10 in SP pump end of the motor horsepower: \u003ca href=\"\/products\/grundfos-385s-sp-8-in-submersible-pump-end\"\u003e385S\u003c\/a\u003e, \u003ca href=\"\/products\/grundfos-475s-sp-8-in-submersible-pump-end\"\u003e475S\u003c\/a\u003e, \u003ca href=\"\/products\/grundfos-625s-sp-10-in-submersible-pump-end\"\u003e625S\u003c\/a\u003e, \u003ca href=\"\/products\/grundfos-800s-sp-10-in-submersible-pump-end\"\u003e800S\u003c\/a\u003e or \u003ca href=\"\/products\/grundfos-1100s-sp-10-in-submersible-pump-end\"\u003e1100S\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 6px\"\u003e\u003cstrong style=\"color:#B3122A\"\u003eMagnetic starter or drive required, ordered separately.\u003c\/strong\u003e Rated for the motor, with three-leg ambient-compensated quick-trip overload protection (see Before You Buy).\u003c\/p\u003e\n\u003cp style=\"margin:0\"\u003e\u003cstrong style=\"color:#B3122A\"\u003eDrop cable and splice kit:\u003c\/strong\u003e sized to your setting depth and ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#E1E3E6;border-left:3px solid #B8BDC4;padding:8px 14px;font-size:11.5px;color:#4A4A4F;margin-top:14px;line-height:1.5\"\u003eGenuine Grundfos equipment, factory-new in original packaging — sold and supported by Watermain Supply, an independent industrial supplier.\u003c\/div\u003e\n\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eWarranty\u003c\/div\u003e\n\u003cdiv class=\"gs-lead\"\u003e\u003cp\u003e24 months from date of installation, but not more than 30 months from date of manufacture. In Grundfos's words, products are “warranted to the original user only to be free of defects in material and workmanship”; the full terms are in the installation and operating instructions on the Data Sheet tab.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eSpecifications\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eMMS8000 8 in (40-150 HP); MMS10000 10 in (175-250 HP); rewindable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage and phase\u003c\/td\u003e\n\u003ctd\u003e460V 3Ph, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum thrust\u003c\/td\u003e\n\u003ctd\u003e13,000 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature rating\u003c\/td\u003e\n\u003ctd\u003eT45, 113°F (45°C), per the Grundfos price list\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling (motor guide)\u003c\/td\u003e\n\u003ctd\u003eAt least 0.50 ft\/s past the motor: about 25 GPM on the MMS8000, 55 GPM on the 175 and 200 HP MMS10000, 41 GPM on the 250 HP; the guide lists 86°F (30°C) water at that flow, 68°F (20°C) on the 250 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eStandard, or 316 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003eMMS8000 43.7-81.1 in; MMS10000 73.6-94.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eMotor and motor lead\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;color:#9B9EA3;margin-top:8px;line-height:1.55\"\u003eSources: Grundfos US price list, January 2026 (HP, thrust, temperature rating, part numbers, lead); Grundfos MS\/MMS submersible motor guide (cooling table and motor dimensions and weights). The price list rates these motors T45; the motor guide's cooling table lists 86°F at minimum flow: plan on the guide figure unless Grundfos confirms the higher rating for your duty.\u003c\/p\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 4px\"\u003e\n\u003ca href=\"\/pages\/submersible-well-pump-sizing-calculator\" style=\"flex:1 1 200px;text-align:center;display:block;background:#B3122A;color:#ffffff;font-family:Arial Black,Arial,sans-serif;font-size:12px;text-transform:uppercase;letter-spacing:1.2px;padding:11px 18px;text-decoration:none\"\u003eSubmersible Calculator\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-sec\"\u003e\n\u003cdiv class=\"gs-h\"\u003eBefore You Buy — The Limits That Decide the Fit\u003c\/div\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\u003ctable class=\"gs-tbl\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCheck\u003c\/th\u003e\n\u003cth\u003eWhat to confirm\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWell size\u003c\/td\u003e\n\u003ctd\u003e8 in casing or flow sleeve for the MMS8000; 10 in for the MMS10000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eAt least 0.50 ft\/s of flow past the motor; use a flow sleeve where the well cannot give it\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e460V three-phase supply through a magnetic starter or drive rated for the motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThree-phase protection\u003c\/td\u003e\n\u003ctd\u003eThe Grundfos warranty on three-phase submersible motors calls for true three-phase power (no phase converter), three-leg ambient-compensated extra quick-trip overload protectors, a checked and recorded current imbalance, and high-voltage surge arresters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003ctd\u003ePump end, starter or drive, drop cable and splice kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gs-contact\"\u003eFor engineering-led sizing and selection support or a factory submittal, email sales@watermainsupply.com or call 1-888.510.4036.\u003cbr\u003e© Watermain Supply — A division of E4 Industrial LLC\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003ch5\u003eData Sheet\u003c\/h5\u003e\n\u003cdiv class=\"gs\"\u003e\u003cdiv class=\"gs-dl\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/Grundfos-MS-MMS-Submersible-Motor-Guide.pdf?v=1790731394\" target=\"_blank\" rel=\"noopener\"\u003eMS\/MMS Submersible Motor Guide\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/Grundfos-SP-SPE-Installation-Operating-Instructions.pdf?v=1790731395\" target=\"_blank\" rel=\"noopener\"\u003eSP\/SPE Installation and Operating Instructions\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003ch5\u003eVideos\u003c\/h5\u003e\n\u003cdiv class=\"gs\"\u003e\u003cp style=\"font-size:12.5px;color:#9B9EA3\"\u003eProduct videos are being added to this listing. For a walkthrough in the meantime, email sales@watermainsupply.com.\u003c\/p\u003e\u003c\/div\u003e\n\u003c!-- \/TABS --\u003e","brand":"Grundfos","offers":[{"title":"40 HP \/ 460V 3Ph \/ MMS8000 Standard - 99973360","offer_id":50599942324399,"sku":"99973360","price":16237.34,"currency_code":"USD","in_stock":true},{"title":"40 HP \/ 460V 3Ph \/ MMS8000 316 SS - 99973368","offer_id":50599942357167,"sku":"99973368","price":27783.4,"currency_code":"USD","in_stock":true},{"title":"50 HP \/ 460V 3Ph \/ MMS8000 Standard - 99973361","offer_id":50599942389935,"sku":"99973361","price":16932.3,"currency_code":"USD","in_stock":true},{"title":"50 HP \/ 460V 3Ph \/ MMS8000 316 SS - 99973369","offer_id":50599942422703,"sku":"99973369","price":29716.8,"currency_code":"USD","in_stock":true},{"title":"60 HP \/ 460V 3Ph \/ MMS8000 Standard - 99973363","offer_id":50599942455471,"sku":"99973363","price":20204.74,"currency_code":"USD","in_stock":true},{"title":"60 HP \/ 460V 3Ph \/ MMS8000 316 SS - 99973370","offer_id":50599942488239,"sku":"99973370","price":35573.67,"currency_code":"USD","in_stock":true},{"title":"75 HP \/ 460V 3Ph \/ MMS8000 Standard - 99973364","offer_id":50599942521007,"sku":"99973364","price":28538.49,"currency_code":"USD","in_stock":true},{"title":"75 HP \/ 460V 3Ph \/ MMS8000 316 SS - 99973371","offer_id":50599942553775,"sku":"99973371","price":38696.95,"currency_code":"USD","in_stock":true},{"title":"100 HP \/ 460V 3Ph \/ MMS8000 Standard - 99973365","offer_id":50599942586543,"sku":"99973365","price":35211.74,"currency_code":"USD","in_stock":true},{"title":"100 HP \/ 460V 3Ph \/ MMS8000 316 SS - 99973372","offer_id":50599942619311,"sku":"99973372","price":44909.97,"currency_code":"USD","in_stock":true},{"title":"125 HP \/ 460V 3Ph \/ MMS8000 Standard - 99973366","offer_id":50599942652079,"sku":"99973366","price":43606.77,"currency_code":"USD","in_stock":true},{"title":"125 HP \/ 460V 3Ph \/ MMS8000 316 SS - 99973373","offer_id":50599942684847,"sku":"99973373","price":58015.94,"currency_code":"USD","in_stock":true},{"title":"150 HP \/ 460V 3Ph \/ MMS8000 Standard - 99973367","offer_id":50599942717615,"sku":"99973367","price":52937.29,"currency_code":"USD","in_stock":true},{"title":"150 HP \/ 460V 3Ph \/ MMS8000 316 SS - 99973374","offer_id":50599942750383,"sku":"99973374","price":72267.84,"currency_code":"USD","in_stock":true},{"title":"175 HP \/ 460V 3Ph \/ MMS10000 Standard - 96937300","offer_id":50599942783151,"sku":"96937300","price":68535.17,"currency_code":"USD","in_stock":true},{"title":"175 HP \/ 460V 3Ph \/ MMS10000 316 SS - 96937303","offer_id":50599942815919,"sku":"96937303","price":85686.02,"currency_code":"USD","in_stock":true},{"title":"200 HP \/ 460V 3Ph \/ MMS10000 Standard - 96937302","offer_id":50599942848687,"sku":"96937302","price":75100.87,"currency_code":"USD","in_stock":true},{"title":"200 HP \/ 460V 3Ph \/ MMS10000 316 SS - 96937304","offer_id":50599942881455,"sku":"96937304","price":87169.6,"currency_code":"USD","in_stock":true},{"title":"250 HP \/ 460V 3Ph \/ MMS10000 Standard - 95927316","offer_id":50599942914223,"sku":"95927316","price":87169.6,"currency_code":"USD","in_stock":true},{"title":"250 HP \/ 460V 3Ph \/ MMS10000 316 SS - 96932582","offer_id":50599942946991,"sku":"96932582","price":107017.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0264\/1913\/4527\/files\/grundfos-mms6-6-in-rewindable-submersible-motor_87aef8f5-dea0-490e-bfc2-d4b4623b7fd0.jpg?v=1791478108","url":"https:\/\/watermainsupply.com\/products\/grundfos-mms-8-in-10-in-submersible-motor","provider":"Watermainsupply","version":"1.0","type":"link"}