{"id":175,"date":"2026-07-08T08:59:16","date_gmt":"2026-07-08T08:59:16","guid":{"rendered":"https:\/\/industrialelectricmotor.net\/?p=175"},"modified":"2026-07-08T08:59:16","modified_gmt":"2026-07-08T08:59:16","slug":"iec-vs-nema-motor-frame-standards","status":"publish","type":"post","link":"https:\/\/industrialelectricmotor.net\/sk\/iec-vs-nema-motor-frame-standards\/","title":{"rendered":"Normy IEC verzus NEMA pre r\u00e1my motorov"},"content":{"rendered":"
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Korea Ever-Power \u00b7 Sprievodca normami \u00b7 IEC 72-1 \/ NEMA MG1<\/span><\/p>\n

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Normy IEC verzus NEMA pre r\u00e1my motorov:
\nVysvetlenie k\u013e\u00fa\u010dov\u00fdch rozdielov<\/span><\/h1>\n

Normy IEC a NEMA s\u00fa dve dominantn\u00e9 normy pre r\u00e1my elektromotorov v glob\u00e1lnom priemyselnom pou\u017eit\u00ed a pokr\u00fdvaj\u00fa mechanick\u00e9 rozmery, mont\u00e1\u017ene rozhrania a konvencie \u00fadajov na typov\u00fdch \u0161t\u00edtkoch, ktor\u00e9 ur\u010duj\u00fa, \u010di sa n\u00e1hradn\u00fd motor fyzicky zmest\u00ed do existuj\u00facej in\u0161tal\u00e1cie. Norma IEC 72-1 upravuje metrick\u00fd syst\u00e9m pou\u017e\u00edvan\u00fd v Eur\u00f3pe, \u00c1zii, Afrike a v\u00e4\u010d\u0161ine sveta; NEMA MG1 upravuje palcov\u00fd syst\u00e9m pou\u017e\u00edvan\u00fd v Severnej Amerike. T\u00e1to pr\u00edru\u010dka jasne vysvet\u013euje rozdiely, aby ste mohli spr\u00e1vne \u0161pecifikova\u0165 a s istotou nahradi\u0165 motor.<\/p>\n

Rozmery r\u00e1mu<\/span>
\nV\u00fd\u0161ka hriade\u013ea<\/span>
\nNap\u00e4tie a frekvencia<\/span>
\nSprievodca kr\u00ed\u017eov\u00fdmi odkazmi<\/span>
\nPravidl\u00e1 substit\u00facie<\/span><\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Norma IEC pre motory<\/div>\n
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\u0160tandard:<\/span> IEC 72-1<\/strong><\/div>\n
Jednotky:<\/span> Metrick\u00e9 (mm)<\/strong><\/div>\n
Nap\u00e4tie:<\/span> 380 \/ 400 V<\/strong><\/div>\n
Frekvencia:<\/span> 50 Hz<\/strong><\/div>\n
K\u013e\u00fa\u010d r\u00e1mca:<\/span> V\u00fd\u0161ka hriade\u013ea (mm)<\/strong><\/div>\n
Pr\u00edklad:<\/span> 132S, 160M, 200L<\/strong><\/div>\n
\u00da\u010dinnos\u0165:<\/span> IE2 \/ IE3 \/ IE4<\/strong><\/div>\n
Trhy:<\/span> Eur\u00f3pa, \u00c1zia, glob\u00e1lny<\/strong><\/div>\n<\/div>\n<\/div>\n
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Norma pre motory NEMA<\/div>\n
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\u0160tandard:<\/span> NEMA MG1<\/strong><\/div>\n
Jednotky:<\/span> Imperi\u00e1lne (palce)<\/strong><\/div>\n
Nap\u00e4tie:<\/span> 460 \/ 230 V<\/strong><\/div>\n
Frekvencia:<\/span> 60 Hz<\/strong><\/div>\n
K\u013e\u00fa\u010d r\u00e1mca:<\/span> \u010c\u00edslo \u00f7 4 = v\u00fd\u0161ka hriade\u013ea (v palcoch)<\/strong><\/div>\n
Pr\u00edklad:<\/span> 143T, 182T, 256T<\/strong><\/div>\n
\u00da\u010dinnos\u0165:<\/span> NEMA Nom \/ Premium<\/strong><\/div>\n
Trhy:<\/span> USA, Kanada, Mexiko<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\"Porovnanie<\/p>\n
Trojf\u00e1zov\u00fd motor s\u00e9rie Ever-Power Y2 od spolo\u010dnosti Korea vyroben\u00fd pod\u013ea metrick\u00fdch rozmerov r\u00e1mu pod\u013ea normy IEC 72-1 \u2013 v\u00fd\u0161ka hriade\u013ea, rozstup otvorov pre p\u00e4tku, priemer hriade\u013ea a rozmery pr\u00edrubov\u00e9ho registra s\u00fa uveden\u00e9 v milimetroch a s\u00fa zamenite\u013en\u00e9 s ak\u00fdmko\u013evek in\u00fdm motorom s rovnak\u00fdm ozna\u010den\u00edm r\u00e1mu od ak\u00e9hoko\u013evek v\u00fdrobcu na svete, ktor\u00fd je kompatibiln\u00fd s normou IEC.<\/div>\n<\/div>\n

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Obsah<\/div>\n
1. Pre\u010do existuj\u00fa dva paraleln\u00e9 \u0161tandardy motorov<\/a>
\n2. Vysvetlenie r\u00e1mov\u00e9ho syst\u00e9mu IEC<\/a>
\n3. Vysvetlenie r\u00e1mov\u00e9ho syst\u00e9mu NEMA<\/a>
\n4. Porovnanie rozmerov IEC a NEMA<\/a>
\n5. Elektrick\u00e9 rozdiely: nap\u00e4tie, frekvencia, \u00fa\u010dinnos\u0165<\/a>
\n6. Sprievodca kr\u00ed\u017eov\u00fdmi odkazmi a substit\u00faciami<\/a>
\n7. Rad motorov Ever-Power IEC od K\u00f3rey<\/a>
\n8. \u010casto kladen\u00e9 ot\u00e1zky<\/a><\/div>\n<\/div>\n

<\/p>\n

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1. Pre\u010do existuj\u00fa dva paraleln\u00e9 \u0161tandardy motorov<\/h2>\n

Normaliz\u00e1cia elektromotorov sa vyv\u00edjala nez\u00e1visle na oboch stran\u00e1ch Atlantiku za\u010diatkom dvadsiateho storo\u010dia. V Spojen\u00fdch \u0161t\u00e1toch N\u00e1rodn\u00e1 asoci\u00e1cia v\u00fdrobcov elektrotechniky (NEMA) publikovala v 50. rokoch 20. storo\u010dia prv\u00e9 vydanie svojej normy pre r\u00e1my motorov, v ktorej zaviedla rozmery v palcoch viazan\u00e9 na severoamerick\u00fa energetick\u00fa s\u00fastavu s frekvenciou 60 Hz a nap\u00e4t\u00edm 460 V. V Eur\u00f3pe a zvy\u0161ku sveta vyvinula Medzin\u00e1rodn\u00e1 elektrotechnick\u00e1 komisia (IEC) nez\u00e1visl\u00fd metrick\u00fd syst\u00e9m viazan\u00fd na medzin\u00e1rodn\u00fa energetick\u00fa infra\u0161trukt\u00faru s frekvenciou 50 Hz a nap\u00e4t\u00edm 380 \u2013 400 V.<\/p>\n

Hoci obe normy definuj\u00fa rovnak\u00fa z\u00e1kladn\u00fa sadu rozmerov \u2013 v\u00fd\u0161ku hriade\u013ea, priemer hriade\u013ea, d\u013a\u017eku pred\u013a\u017eenia hriade\u013ea, rozstup otvorov pre p\u00e4tku a priemer pr\u00edruby \u2013 robia tak v r\u00f4znych jednotk\u00e1ch s r\u00f4znymi \u010d\u00edseln\u00fdmi hodnotami a prid\u00e1vaj\u00fa r\u00f4zne doplnkov\u00e9 po\u017eiadavky na elektrick\u00fd v\u00fdkon, \u00fadaje na typovom \u0161t\u00edtku, sk\u00fa\u0161ky izol\u00e1cie a klasifik\u00e1ciu \u00fa\u010dinnosti. V\u00fdsledkom je, \u017ee motor IEC a motor NEMA s nomin\u00e1lne podobn\u00fdm v\u00fdstupn\u00fdm v\u00fdkonom nie s\u00fa mechanicky zamenite\u013en\u00e9 bez adapt\u00e9rov\u00fdch dosiek alebo obr\u00e1bania hriade\u013ea, a to ani v pr\u00edpade, \u017ee ich ozna\u010denia r\u00e1mu sa m\u00f4\u017eu zda\u0165 na podobn\u00fdch poz\u00edci\u00e1ch v ich pr\u00edslu\u0161n\u00fdch s\u00e9ri\u00e1ch.<\/p>\n

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Geografick\u00e9 pokrytie dnes<\/div>\n
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IEC 72-1 (metrick\u00e9):<\/strong>
\nEur\u00f3pska \u00fania, Spojen\u00e9 kr\u00e1\u013eovstvo, Austr\u00e1lia, Nov\u00fd Z\u00e9land, India, \u010c\u00edna, Japonsko, Ju\u017en\u00e1 K\u00f3rea, juhov\u00fdchodn\u00e1 \u00c1zia, Bl\u00edzky v\u00fdchod, Afrika, Ju\u017en\u00e1 Amerika. Pokr\u00fdva pribli\u017ene 85 percent celosvetov\u00fdch in\u0161tal\u00e1ci\u00ed nov\u00fdch motorov.<\/span><\/div>\n
NEMA MG1 (imperi\u00e1lne):<\/strong>
\nSpojen\u00e9 \u0161t\u00e1ty, Kanada, Mexiko a niektor\u00e9 krajiny Latinskej Ameriky, kde je nain\u0161talovan\u00e1 severoamerick\u00e1 elektrick\u00e1 infra\u0161trukt\u00fara. Pokr\u00fdva pribli\u017ene 15 percent celosvetov\u00fdch in\u0161tal\u00e1ci\u00ed nov\u00fdch motorov.<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n

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2. Vysvetlenie r\u00e1mov\u00e9ho syst\u00e9mu IEC<\/h2>\n

Norma IEC 72-1 prira\u010fuje ozna\u010denia r\u00e1mov pomocou v\u00fd\u0161ky hriade\u013ea (vzdialenos\u0165 v milimetroch od spodnej strany p\u00e4tky motora k osi hriade\u013ea) ako prim\u00e1rneho identifik\u00e1tora. V\u010faka tomu je v\u00fd\u0161ka hriade\u013ea okam\u017eite \u010ditate\u013en\u00e1 z ozna\u010denia r\u00e1mu: motor s r\u00e1mom IEC 132 m\u00e1 v\u00fd\u0161ku hriade\u013ea 132 mm; r\u00e1m 160 m\u00e1 v\u00fd\u0161ku hriade\u013ea 160 mm; r\u00e1m 200 m\u00e1 v\u00fd\u0161ku hriade\u013ea 200 mm. V r\u00e1mci ka\u017edej v\u00fd\u0161ky hriade\u013ea p\u00edsmenov\u00e1 pr\u00edpona ozna\u010duje d\u013a\u017eku statorov\u00e9ho jadra: S (kr\u00e1tke), M (stredn\u00e9) alebo L (dlh\u00e9). Dlh\u0161ie d\u013a\u017eky jadra umo\u017e\u0148uj\u00fa v\u00e4\u010d\u0161\u00ed objem vinutia, a teda vy\u0161\u0161\u00ed v\u00fdkon pri rovnakej v\u00fd\u0161ke hriade\u013ea.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
R\u00e1m IEC<\/th>\nV\u00fd\u0161ka hriade\u013ea H (mm)<\/th>\nPriemer hriade\u013ea D (mm)<\/th>\nOtvor pre nohy A (mm)<\/th>\nOtvor pre nohy B (mm)<\/th>\nTypick\u00fd v\u00fdkon (4P)<\/th>\n<\/tr>\n<\/thead>\n
IEC 71<\/td>\n71<\/td>\n14<\/td>\n112<\/td>\n71<\/td>\n0,18\u20130,37 kW<\/td>\n<\/tr>\n
IEC 80<\/td>\n80<\/td>\n19<\/td>\n125<\/td>\n100<\/td>\n0,37\u20130,75 kW<\/td>\n<\/tr>\n
IEC 90<\/td>\n90<\/td>\n24<\/td>\n140<\/td>\n100<\/td>\n0,75 \u2013 2,2 kW<\/td>\n<\/tr>\n
IEC 100<\/td>\n100<\/td>\n28<\/td>\n160<\/td>\n112<\/td>\n2,2\u20133,0 kW<\/td>\n<\/tr>\n
IEC 112<\/td>\n112<\/td>\n28<\/td>\n190<\/td>\n114<\/td>\n3,0\u20135,5 kW<\/td>\n<\/tr>\n
IEC 132<\/td>\n132<\/td>\n38<\/td>\n216<\/td>\n140<\/td>\n5,5 \u2013 11 kW<\/td>\n<\/tr>\n
IEC 160<\/td>\n160<\/td>\n42<\/td>\n254<\/td>\n178<\/td>\n11\u201318,5 kW<\/td>\n<\/tr>\n
IEC 180<\/td>\n180<\/td>\n48<\/td>\n279<\/td>\n203<\/td>\n18,5 \u2013 30 kW<\/td>\n<\/tr>\n
IEC 200<\/td>\n200<\/td>\n55<\/td>\n318<\/td>\n228<\/td>\n30\u201345 kW<\/td>\n<\/tr>\n
IEC 225\u2013315<\/td>\n225 \u2013 315<\/td>\n60 \u2013 85<\/td>\n356 \u2013 508<\/td>\n254 \u2013 406<\/td>\n45 \u2013 200+ kW<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Mont\u00e1\u017eny predpis IEC (ozna\u010denie IM) \u0161pecifikuje mont\u00e1\u017ene usporiadanie: IM B3 (noha horizont\u00e1lna), IM B5 (pr\u00edruba horizont\u00e1lna), IM B35 (noha a pr\u00edruba), IM V1 (noha vertik\u00e1lna hriade\u013e nadol) at\u010f. Rovnak\u00fd syst\u00e9m mont\u00e1\u017enych predpisov plat\u00ed pre v\u0161etky ve\u013ekosti r\u00e1mov IEC a v\u0161etk\u00fdch v\u00fdrobcov.<\/p>\n<\/div>\n

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3. Vysvetlenie r\u00e1mov\u00e9ho syst\u00e9mu NEMA<\/h2>\n

NEMA MG1 prira\u010fuje \u010d\u00edsla r\u00e1mov (napr\u00edklad 143T, 182T, 213T, 256T), kde prv\u00e9 dve alebo tri \u010d\u00edslice k\u00f3duj\u00fa v\u00fd\u0161ku hriade\u013ea a pr\u00edpona p\u00edsmena ozna\u010duje s\u00e9riu r\u00e1mu T (s\u00fa\u010dasn\u00fd \u0161tandard od 60. rokov 20. storo\u010dia) a typ mont\u00e1\u017ee. V\u00fd\u0161ka hriade\u013ea v palcoch sa vypo\u010d\u00edta vydelen\u00edm prv\u00fdch dvoch \u010d\u00edslic \u010d\u00edsla r\u00e1mu \u010d\u00edslom 4: r\u00e1m 143T m\u00e1 v\u00fd\u0161ku hriade\u013ea 14 \u00f7 4 = 3,5 palca (88,9 mm); r\u00e1m 256T m\u00e1 v\u00fd\u0161ku hriade\u013ea 25 \u00f7 4 = 6,25 palca (158,8 mm). Tretia \u010d\u00edslica (3 v 143T, 6 v 256T) sa vz\u0165ahuje na axi\u00e1lnu vzdialenos\u0165 medzi koncom hriade\u013ea a rozmiestnen\u00edm otvorov pre skrutky, nie priamo na d\u013a\u017eku jadra.<\/p>\n

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Pozn\u00e1mka k hist\u00f3rii r\u00e1mov NEMA: pred rokom 1964 pou\u017e\u00edvala NEMA ozna\u010denia r\u00e1mov U (napr\u00edklad 143U), ktor\u00e9 s\u00fa fyzicky v\u00e4\u010d\u0161ie ako s\u00fa\u010dasn\u00fd r\u00e1m T pri rovnakom v\u00fdkone. Ak vymie\u0148ate motor s r\u00e1mom U, overte si, \u010di in\u0161talovan\u00e1 z\u00e1klad\u0148a pou\u017e\u00edva rozmery r\u00e1mu T alebo r\u00e1mu U. Spolo\u010dnos\u0165 Korea Ever-Power nevyr\u00e1ba motory s r\u00e1mom U; v\u0161etky motory s\u00e9rie Y2 s\u00fa vyroben\u00e9 pod\u013ea s\u00fa\u010dasn\u00fdch rozmerov normy IEC 72-1, ktor\u00e9 sa viac zhoduj\u00fa s motormi NEMA s r\u00e1mom T ako s motormi s r\u00e1mom U.<\/p>\n<\/div>\n

\n\n\n\n\n\n\n\n\n\n\n\n
R\u00e1m NEMA<\/th>\nV\u00fd\u0161ka hriade\u013ea (v palcoch)<\/th>\nV\u00fd\u0161ka hriade\u013ea (mm)<\/th>\nPriemer hriade\u013ea (v palcoch)<\/th>\nTypick\u00fd v\u00fdkon (4P, 60 Hz)<\/th>\n<\/tr>\n<\/thead>\n
NEMA 56<\/td>\n3,50 palca<\/td>\n88.9<\/td>\n5\/8 palca<\/td>\n\u2153\u2013\u00be hp<\/td>\n<\/tr>\n
NEMA 143T<\/td>\n3,50 palca<\/td>\n88.9<\/td>\n7\/8 palca<\/td>\n1\u20131,5 hp<\/td>\n<\/tr>\n
NEMA 182T<\/td>\n4,50 palca<\/td>\n114.3<\/td>\n1\u215b palca<\/td>\n2\u20133 konsk\u00e9 sily<\/td>\n<\/tr>\n
NEMA 213T<\/td>\n5,25 palca<\/td>\n133.4<\/td>\n1\u215e palca<\/td>\n5\u20137,5 kon\u00ed<\/td>\n<\/tr>\n
NEMA 256T<\/td>\n6,25 palca<\/td>\n158.8<\/td>\n1\u215d palca<\/td>\n10\u201315 kon\u00ed<\/td>\n<\/tr>\n
NEMA 324T<\/td>\n8,00 palcov<\/td>\n203.2<\/td>\n2\u215b palca<\/td>\n20 \u2013 30 kon\u00ed<\/td>\n<\/tr>\n
NEMA 365T<\/td>\n9,00 palcov<\/td>\n228.6<\/td>\n2\u215e palca<\/td>\n40 \u2013 60 kon\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

<\/p>\n

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4. Porovnanie rozmerov IEC a NEMA<\/h2>\n

Nasleduj\u00faca tabu\u013eka uv\u00e1dza ved\u013ea seba porovnate\u013en\u00e9 r\u00e1my IEC a NEMA a ukazuje, pre\u010do tieto dva syst\u00e9my nie s\u00fa rozmerovo zamenite\u013en\u00e9 ani pri nomin\u00e1lne podobn\u00fdch v\u00fd\u0161kach hriade\u013eov. Priemery hriade\u013eov, rozostupy otvorov pre p\u00e4tky a d\u013a\u017eky pred\u013a\u017eenia hriade\u013ea sa l\u00ed\u0161ia, \u010do znamen\u00e1, \u017ee motor IEC nemo\u017eno priamo priskrutkova\u0165 k dr\u017eiaku motora NEMA bez \u00fapravy.<\/p>\n

\"Porovnanie<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
R\u00e1m IEC<\/th>\nV\u00fd\u0161ka hriade\u013ea pod\u013ea IEC (mm)<\/th>\nNajbli\u017e\u0161\u00ed r\u00e1m NEMA<\/th>\nV\u00fd\u0161ka hriade\u013ea NEMA (mm)<\/th>\nRozdiel v\u00fd\u0161ky hriade\u013ea<\/th>\nPriame priskrutkovanie?<\/th>\n<\/tr>\n<\/thead>\n
IEC 90<\/td>\n90 mm<\/td>\nNEMA 143T<\/td>\n88,9 mm<\/td>\n\u22121,1 mm<\/td>\nNie<\/td>\n<\/tr>\n
IEC 112<\/td>\n112 mm<\/td>\nNEMA 182T<\/td>\n114,3 mm<\/td>\n+2,3 mm<\/td>\nNie<\/td>\n<\/tr>\n
IEC 132<\/td>\n132 mm<\/td>\nNEMA 213T<\/td>\n133,4 mm<\/td>\n+1,4 mm<\/td>\nNie<\/td>\n<\/tr>\n
IEC 160<\/td>\n160 mm<\/td>\nNEMA 256T<\/td>\n158,8 mm<\/td>\n\u22121,2 mm<\/td>\nNie<\/td>\n<\/tr>\n
IEC 180<\/td>\n180 mm<\/td>\nNEMA 286T<\/td>\n177,8 mm<\/td>\n\u22122,2 mm<\/td>\nNie<\/td>\n<\/tr>\n
IEC 200<\/td>\n200 mm<\/td>\nNEMA 324T<\/td>\n203,2 mm<\/td>\n+3,2 mm<\/td>\nNie<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Aj ke\u010f sa v\u00fd\u0161ky hriade\u013eov od seba l\u00ed\u0161ia v rozmedz\u00ed 2 a\u017e 3 mm, rozstupy otvorov pre p\u00e4tky (rozmery A a B) sa medzi normami IEC a NEMA podstatne l\u00ed\u0161ia a priemery hriade\u013eov s\u00fa \u0161pecifikovan\u00e9 v r\u00f4znych toleran\u010dn\u00fdch syst\u00e9moch (metrick\u00e9 h6 v IEC oproti palcov\u00fdm toleranci\u00e1m v NEMA). Priama v\u00fdmena motora IEC za motor NEMA alebo naopak pomocou skrutkov\u00fdch spojov nie je mo\u017en\u00e1 bez obr\u00e1bania alebo adapt\u00e9rovej dosky.<\/p>\n<\/div>\n

<\/p>\n

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5. Elektrick\u00e9 rozdiely: nap\u00e4tie, frekvencia a \u00fa\u010dinnos\u0165<\/h2>\n
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Nap\u00e1jacie nap\u00e4tie a frekvencia<\/div>\n

Motory IEC s\u00fa dimenzovan\u00e9 na trojf\u00e1zov\u00e9 nap\u00e1janie 380 \u2013 400 V, 50 Hz (\u0161tandard v celom svete pod\u013ea IEC). Motory NEMA s\u00fa dimenzovan\u00e9 na trojf\u00e1zov\u00e9 nap\u00e1janie 460 V (alebo dvojit\u00e9 nap\u00e4tie 230\/460 V), 60 Hz (severoamerick\u00fd \u0161tandard). Prev\u00e1dzka motora IEC na nap\u00e1jan\u00ed 60 Hz zvy\u0161uje synchr\u00f3nnu r\u00fdchlos\u0165 o 20 percent (4-p\u00f3lov\u00fd motor be\u017e\u00ed pri 1 800 ot.\/min namiesto 1 500 ot.\/min) a zvy\u0161uje straty v \u017eeleze, \u010do si vy\u017eaduje zn\u00ed\u017eenie v\u00fdkonu. Prev\u00e1dzka motora NEMA na nap\u00e1jan\u00ed 50 Hz zni\u017euje synchr\u00f3nnu r\u00fdchlos\u0165 o 17 percent a m\u00f4\u017ee si vy\u017eadova\u0165 prehodnotenie. Dvojnap\u00e4\u0165ov\u00e9 motory NEMA (230\/460 V, 60 Hz) nemo\u017eno jednoducho pripoji\u0165 k nap\u00e1janiu IEC 380 V, 50 Hz bez probl\u00e9mu s frekven\u010dn\u00fdm rozdielom, aj ke\u010f je nap\u00e4tie prijate\u013en\u00e9.<\/p>\n

V\u00fdstupn\u00fd v\u00fdkon pri 50 Hz na 60 Hz motore NEMA: zn\u00ed\u017eenie na pribli\u017ene 83% pod\u013ea menovit\u00e9ho v\u00fdkonu uveden\u00e9ho na \u0161t\u00edtku<\/div>\n<\/div>\n
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V\u00fdkonov\u00e9 jednotky: kW vs. konsk\u00e1 sila<\/div>\n

Motory IEC s\u00fa menovit\u00e9 v kilowattoch (kW). Motory NEMA s\u00fa menovit\u00e9 v konsk\u00fdch sil\u00e1ch (hp). Prepo\u010det: 1 hp = 0,746 kW. Be\u017en\u00e9 kr\u00ed\u017eov\u00e9 odkazy: 1 hp \u2248 0,75 kW; 2 hp \u2248 1,5 kW; 5 hp \u2248 3,7 kW; 10 hp \u2248 7,5 kW; 20 hp \u2248 15 kW; 50 hp \u2248 37 kW. V\u00fdkonov\u00e9 rady preferovan\u00e9 IEC (0,18, 0,25, 0,37, 0,55, 0,75, 1,1, 1,5, 2,2, 3,0, 4,0, 5,5, 7,5, 11 kW\u2026) sa presne nezhoduj\u00fa s radom NEMA hp (0,5, 0,75, 1,0, 1,5, 2,0, 3,0, 5,0, 7,5, 10\u2026 hp), tak\u017ee pri rovnakej ve\u013ekosti r\u00e1mu zriedka doch\u00e1dza k presnej z\u00e1mene v\u00fdkonu.<\/p>\n

Stru\u010dn\u00fd preh\u013ead: vyberte motor IEC s najbli\u017e\u0161\u00edm \u0161tandardn\u00fdm v\u00fdkonom v kW nad ekvivalentom hp \u00d7 0,746 kW<\/div>\n<\/div>\n
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Klasifik\u00e1cia \u00fa\u010dinnosti<\/div>\n

Motory IEC pou\u017e\u00edvaj\u00fa medzin\u00e1rodn\u00fd syst\u00e9m klasifik\u00e1cie \u00fa\u010dinnosti (IE1 Standard, IE2 High, IE3 Premium, IE4 Super Premium) definovan\u00fd v norme IEC 60034-30-1. Motory NEMA pou\u017e\u00edvaj\u00fa in\u00fa klasifika\u010dn\u00fa sch\u00e9mu: NEMA Nominal Efficiency a NEMA Premium Efficiency (definovan\u00e9 v NEMA MG1 Tabu\u013eka 12-12). NEMA Premium Efficiency je pribli\u017ene ekvivalentn\u00e1 IEC IE3 pri v\u00e4\u010d\u0161ine v\u00fdkonov, hoci testovacie met\u00f3dy a \u0161pecifick\u00e9 hodnoty \u00fa\u010dinnosti sa v niektor\u00fdch bodoch rozsahu l\u00ed\u0161ia. Triedy \u00fa\u010dinnosti IEC a NEMA nie s\u00fa \u010d\u00edselne zamenite\u013en\u00e9 a nemali by sa priamo porovn\u00e1va\u0165 bez konzult\u00e1cie oboch noriem.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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6. Sprievodca kr\u00ed\u017eov\u00fdmi odkazmi a substit\u00faciami<\/h2>\n

Nahradenie motora IEC motorom NEMA (alebo naopak) si vy\u017eaduje nez\u00e1visl\u00fa kontrolu \u0161tyroch vec\u00ed: v\u00fd\u0161ky hriade\u013ea (\u010di zodpoved\u00e1 spojke alebo poh\u00e1\u0148an\u00e9mu stroju), rozmiestnenia otvorov pre p\u00e4tku (\u010di zodpoved\u00e1 z\u00e1kladnej doske), priemeru hriade\u013ea a d\u013a\u017eky pred\u013a\u017eenia (\u010di zodpoved\u00e1 spojke alebo kladke) a elektrick\u00e9ho v\u00fdkonu (\u010di motor pracuje s dostupn\u00fdm nap\u00e1jan\u00edm). V\u0161etky \u0161tyri musia by\u0165 overen\u00e9 \u2013 zhoda jedn\u00e9ho alebo dvoch rozmerov nesta\u010d\u00ed na \u00faspe\u0161n\u00fa n\u00e1hradu.<\/p>\n

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Kontroln\u00fd zoznam n\u00e1hrady: V\u00fdmena motora IEC za motor NEMA (alebo reverzibiln\u00fd)<\/div>\n
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\u2713 V\u00fd\u0161ka hriade\u013ea<\/div>\n

Zmerajte existuj\u00facu v\u00fd\u0161ku hriade\u013ea motora od spodnej strany p\u00e4tky po os hriade\u013ea. N\u00e1jdite r\u00e1m IEC, ktor\u00e9ho v\u00fd\u0161ka hriade\u013ea sa zhoduje s toleranciou \u00b12 mm, aby ste predi\u0161li v\u00fd\u0161kov\u00e9mu rozdielu na spojke.<\/p>\n<\/div>\n

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\u2713 Vzor otvoru pre chodidl\u00e1<\/div>\n

Zmerajte A (pozd\u013a\u017eny rozstup otvorov pre p\u00e4tky) a B (bo\u010dn\u00fd rozstup otvorov pre p\u00e4tky) na existuj\u00facom motore. Porovnajte s rozmermi A a B r\u00e1mu IEC. Ak sa l\u00ed\u0161ia, je potrebn\u00e1 nov\u00e1 z\u00e1kladov\u00e1 doska alebo adapt\u00e9rov\u00e1 doska.<\/p>\n<\/div>\n

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\u2713 Priemer a pred\u013a\u017eenie hriade\u013ea<\/div>\n

Existuj\u00faci otvor spojky alebo otvor remenice mus\u00ed zodpoveda\u0165 priemeru nov\u00e9ho hriade\u013ea motora. Ak nie, vyv\u0155tajte spojku alebo namontujte adapt\u00e9rov\u00e9 \u200b\u200bpuzdro hriade\u013ea. D\u013a\u017eka pred\u013a\u017eenia hriade\u013ea mus\u00ed umo\u017e\u0148ova\u0165 \u00fapln\u00e9 zapojenie spojky.<\/p>\n<\/div>\n

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\u2713 Kompatibilita elektrick\u00e9ho nap\u00e1jania<\/div>\n

Skontrolujte, \u010di menovit\u00e9 nap\u00e4tie a frekvencia n\u00e1hradn\u00e9ho motora IEC zodpovedaj\u00fa dostupn\u00e9mu nap\u00e1janiu. Pre in\u0161tal\u00e1cie s nap\u00e4t\u00edm 460 V 60 Hz v Severnej Amerike \u0161pecifikujte motor IEC s vinut\u00edm 460 V 60 Hz alebo pou\u017eite zni\u017euj\u00faci transform\u00e1tor, ak pou\u017e\u00edvate \u0161tandardn\u00fd motor IEC 380 V 50 Hz.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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7. Rad motorov Ever-Power IEC od K\u00f3rey<\/h2>\n

Spolo\u010dnos\u0165 Korea Ever-Power vyr\u00e1ba v\u0161etky elektromotory pod\u013ea metrick\u00fdch noriem r\u00e1mu IEC 72-1. V\u0161etky motory s\u00e9rie Y2 s\u00fa rozmerovo zamenite\u013en\u00e9 s ak\u00fdmko\u013evek motorom kompatibiln\u00fdm s normou IEC od ak\u00e9hoko\u013evek v\u00fdrobcu s rovnak\u00fdm ozna\u010den\u00edm r\u00e1mu. rad trojf\u00e1zov\u00fdch motorov<\/a> \u0160tandardne pokr\u00fdva r\u00e1my IEC 71 a\u017e 315 v 2-p\u00f3lov\u00fdch, 4-p\u00f3lov\u00fdch, 6-p\u00f3lov\u00fdch a 8-p\u00f3lov\u00fdch konfigur\u00e1ci\u00e1ch pri nap\u00e4t\u00ed 380 V 50 Hz.<\/p>\n

\n
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\"Presn\u00e9<\/p>\n

CNC obr\u00e1banie r\u00e1mov<\/div>\n<\/div>\n
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\"K\u00f3rejsk\u00e9<\/p>\n

Certifik\u00e1cia CE a ISO<\/div>\n<\/div>\n
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\"Glob\u00e1lni<\/p>\n

Glob\u00e1lne trhy IEC<\/div>\n<\/div>\n
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\"K\u00f3rea<\/p>\n

Doru\u010denie do cel\u00e9ho sveta<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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8. \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
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\n
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Je motor NEMA 145T rovnak\u00fd ako motor IEC 90?<\/div>\n<\/div>\n
\n

Nie. NEMA 145T (v\u00fd\u0161ka hriade\u013ea 3,625 palca = 92,1 mm) a IEC 90 (v\u00fd\u0161ka hriade\u013ea 90 mm) maj\u00fa podobn\u00e9, ale nie identick\u00e9 v\u00fd\u0161ky hriade\u013eov \u2013 rozdiel 2,1 mm znamen\u00e1, \u017ee v\u00fd\u0161ky stredov\u00fdch \u010diar hriade\u013ea sa l\u00ed\u0161ia, \u010do sp\u00f4sob\u00ed nespr\u00e1vne zarovnanie spojky, ak sa jeden nahrad\u00ed druh\u00fdm na tej istej z\u00e1kladnej doske bez podlo\u017eiek. E\u0161te d\u00f4le\u017eitej\u0161ie je, \u017ee rozstupy otvorov pre p\u00e4tky (rozmery A a B) sa medzi NEMA 145T a IEC 90 l\u00ed\u0161ia, \u010do znamen\u00e1, \u017ee motor nemo\u017eno priskrutkova\u0165 k tej istej z\u00e1kladnej doske bez \u00fapravy. Priemer hriade\u013ea sa tie\u017e l\u00ed\u0161i: NEMA 145T pou\u017e\u00edva hriade\u013e s priemerom 7\/8 palca (22,2 mm), zatia\u013e \u010do IEC 90 pou\u017e\u00edva hriade\u013e s priemerom 24 mm. Ide o tri samostatn\u00e9 nekompatibility, ktor\u00e9 si vy\u017eaduj\u00fa \u00fapravu predt\u00fdm, ako je mo\u017en\u00e1 n\u00e1hrada z NEMA na IEC.<\/p>\n<\/div>\n<\/div>\n

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M\u00f4\u017ee spolo\u010dnos\u0165 Korea Ever-Power doda\u0165 motory nav\u00edjan\u00e9 na 460 V 60 Hz pre in\u0161tal\u00e1cie v Severnej Amerike?<\/div>\n<\/div>\n
\n

\u00c1no. Spolo\u010dnos\u0165 Korea Ever-Power m\u00f4\u017ee doda\u0165 motory s\u00e9rie Y2 s nap\u00e4t\u00edm 460 V 60 Hz (alebo s dvojit\u00fdm nap\u00e4t\u00edm 230\/460 V 60 Hz) pre in\u0161tal\u00e1cie na severoamerickom trhu s metrick\u00fdmi r\u00e1mami IEC. Motor si zachov\u00e1 svoje metrick\u00e9 rozmery r\u00e1mu IEC 72-1 \u2013 tak\u017ee v\u0161etky mont\u00e1\u017ene rozmery zostan\u00fa metrick\u00e9 \u2013 ale elektrick\u00e1 \u0161pecifik\u00e1cia zodpoved\u00e1 severoamerickej norme nap\u00e1jania. Toto je najpraktickej\u0161\u00ed pr\u00edstup pre severoamerick\u00e9 zariadenia, ktor\u00e9 chc\u00fa \u0161tandardizova\u0165 motory s metrick\u00fdm r\u00e1mom IEC pre rozmerov\u00fa zamenite\u013enos\u0165 pri pou\u017eit\u00ed miestneho nap\u00e1jania s frekvenciou 60 Hz. Informujte sa pros\u00edm prostredn\u00edctvom Technick\u00fd t\u00edm spolo\u010dnosti Ever-Power v K\u00f3rei<\/a> s po\u017eadovan\u00fdm v\u00fdkonom, ve\u013ekos\u0165ou r\u00e1mu, po\u010dtom p\u00f3lov a \u0161pecifik\u00e1ciou nap\u00e1jania.<\/p>\n<\/div>\n<\/div>\n

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\u010co je lep\u0161ie: IEC alebo NEMA pre nov\u00fd n\u00e1vrh stroja?<\/div>\n<\/div>\n
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Pre ak\u00fdko\u013evek nov\u00fd stroj ur\u010den\u00fd na predaj alebo in\u0161tal\u00e1ciu mimo Severnej Ameriky je IEC tou spr\u00e1vnou vo\u013ebou. Motory IEC s\u00fa dostupn\u00e9 od \u0161ir\u0161ej \u0161k\u00e1ly v\u00fdrobcov na celom svete, pokr\u00fdvaj\u00fa \u0161ir\u0161\u00ed v\u00fdkonov\u00fd rozsah v men\u0161\u00edch krokoch a sp\u013a\u0148aj\u00fa predpisy o energetickej \u00fa\u010dinnosti Eur\u00f3pskej \u00fanie, \u010c\u00edny, Austr\u00e1lie a v\u00e4\u010d\u0161iny ostatn\u00fdch trhov, ktor\u00e9 vy\u017eaduj\u00fa minim\u00e1lnu \u00fa\u010dinnos\u0165 IE3. Pre stroje ur\u010den\u00e9 v\u00fdhradne pre severoamerick\u00fdch z\u00e1kazn\u00edkov vyu\u017e\u00edvaj\u00facich severoamerick\u00fa elektrick\u00fa infra\u0161trukt\u00faru (460 V 60 Hz) s\u00fa motory NEMA MG1 jednoduch\u0161ou \u0161pecifik\u00e1ciou, preto\u017ee zodpovedaj\u00fa miestnym \u0161tandardom elektrick\u00e9ho nap\u00e1jania bez ak\u00e9hoko\u013evek zn\u00ed\u017eenia v\u00fdkonu alebo frekven\u010dnej konverzie. Pre stroj, ktor\u00fd sa bude vyv\u00e1\u017ea\u0165 do cel\u00e9ho sveta, navrhnite pod\u013ea IEC a \u0161pecifikujte du\u00e1lne vinutie nap\u00e4tia (230\/460 V pre varianty pre americk\u00fd trh) \u2013 rozmery r\u00e1mu IEC s\u00fa potom konzistentn\u00e9 na celom svete, zatia\u013e \u010do vinutie je upraven\u00e9 pre miestne nap\u00e1janie.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n
<\/div>\n

 <\/p>\n

\n
Korea Ever-Power \u00b7 Motory s r\u00e1mom IEC \u00b7 Celosvetov\u00e1 dod\u00e1vka<\/div>\n

Potrebujete motory s r\u00e1mom IEC pre va\u0161u aplik\u00e1ciu alebo exportn\u00fd trh?<\/h2>\n

S\u00e9ria Ever-Power Y2 od K\u00f3rey: pln\u00e1 zhoda s normou IEC 72-1, r\u00e1my 71 a\u017e 315, norma IE3, dostupn\u00e9 s vinut\u00edm 380 V 50 Hz a 460 V 60 Hz na po\u017eiadanie. Glob\u00e1lny export s certifik\u00e1ciou CE a ISO.<\/p>\n

Zobrazi\u0165 sortiment motorov IEC<\/a><\/p>\n<\/div>\n<\/div>\n

Upravil Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Power \u00b7 Standards Guide \u00b7 IEC 72-1 \/ NEMA MG1 IEC vs NEMA Motor Frame Standards: Key Differences Explained IEC and NEMA are the two dominant electric motor frame standards in global industrial use, covering the mechanical dimensions, mounting interfaces, and nameplate data conventions that determine whether a replacement motor will physically fit an […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-175","post","type-post","status-publish","format-standard","hentry","category-industrial-electric-motor"],"_links":{"self":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/175","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/comments?post=175"}],"version-history":[{"count":1,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/175\/revisions"}],"predecessor-version":[{"id":178,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/175\/revisions\/178"}],"wp:attachment":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/media?parent=175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/categories?post=175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/tags?post=175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}