Kontaktör peremennogo toka 25A
Kontaktör peremennogo toka 25A predstavlyaet soboy pereklyuchatel s elektricheskim upravleniem, ispolzuemyy uchun pereklyucheniya elektricheskoy tsepi, analogik rele, uchun isklyuchenie bolee vysokix znacheniy nominalnogo toka va nekotoryh drugix otlichiy.
Kontaktör peremennogo toka 25A upravlyaetsya tsepyu, kotoraya imeet gorazdo bolee nizoskiy uroven moshnosti, chem kommuntiruemaya tsepyu. .
Kontaktory byvayut turli xil shakllar s razlichnoy moschnostyu va xarakteristikami. V otlichie ot avtomaticheskogo vyklyuchatelya, kontaktor ne prednaznachen uchun preryvaniya toka korotkogo zamykaniya. Kontaktory variruyutsya ot tex, kotorye imeyut tok otklyucheniya ot neskolkyx amper do tysyach amper va ot 24 V postoyannogo toka do mnogix kilovolt.
Fizicheskiy razmer kontaktorov ustroystva, dostatochno malenkogo, chtoby ego bylo podnyat odnoy rukoy, do bolshix ustroystv shu storonoy okolometra bor.
Boshqaruv elektrodvigatelyami, osveshcheniem, otopleniem, batareyami kondensatorov, teplovimi isparitelyami va dori-darmon elektr energiyasi nagruzkami uchun kontaktory foydalaniladi. .
Kontaktory otsenivayutsya po raschetnomu toku nagruzki na kontakt (polyus), maksimalnomu vyderjivaemou toku pri otkaze, rabochemu tsiklu, ojidaemo raschetnomu sroku slujby, napryajeniyu va napryajeniyu katushki.
Kontaktör boshqaruv dvigateli obshchego naznacheniya mumkin podoyti uchun tyajelogo puska bo'lish dvigateli; tak nazyvaemye kontaktory «opredelengo naznacheniya» tschatelno adapterovaniy uchun takix primeneniy, kak zapusk dvigateli kompressor konditsioner.
Kategorii ispolzovaniya MEK
Tekushchiy nominal kontaktora zavisit ot kategorii ispolzovaniya. 60947 standartidagi IEC toifasi namunalari:
- AC-1- Neinduktivnye yoki slaboindutivnye nagruzki, pechi soprotivleniya
- AC-2- Zapusk dvigateli s kontaktnymi koltsami: pusk, otklyuchenie
- AC-3- Zapusk dvigateli s korotkozamknutym rotorom va otklyuchenie tolko posle togo, kak dvigatel naberet skorost. (Vklyuchite tok s zablokrovannym rotorom (LRA), otklyuchite tok to'liq nagruzki (FLA))
- AC-4- Pusk dvigateley s korotkozamknutym rotorom v tolchkovom rejime va v rejime gusheniya. Bystryy start/stop. (Sdelay va slomay LRA)
Rele va vspomogatelnye kontaktnye bloki raschitany v sootvetstvie bo'yicha IEC 60947-5-1.
- AC-15- Upravlenie elektromagnitnymi nagruzkami (>72 VA)
- DC-13- Elektromagnitami boshqarish
Shrift | TOC2XN-D09 | TOC2XN-D12 | TOC2XN-D18 | TOC2XN-D25 | TOC2XN-D32 | TOC2XN-D40 | TOC2XN-D50 | TOC2XN-D65 | TOC2XN-D80 | TOC2XN-D95 | ||
Nominal ish joriy (A) |
AC3 | 9 | 12 | 18 | 25 | 32 | 40 | 50 | 65 | 80 | 95 | |
AC4 | 3.5 | 5 | 7.7 | 8.5 | 12 | 18.5 | 24 | 28 | 37 | 44 | ||
Standart quvvat ning reytinglari 3 fazali motorlar 50/ 60Hz in |
220 / 230V | 2.2 | 3 | 4 | 5.5 | 7.5 | 11 | 15 | 18.5 | 22 | 25 | |
380 / 400V | 4 | 5.5 | 7.5 | 11 | 15 | 18.5 | 22 | 30 | 37 | 45 | ||
415V | 4 | 5.5 | 9 | 11 | 15 | 22 | 25 | 37 | 45 | 45 | ||
500V | 5.5 | 7.5 | 10 | 15 | 18.5 | 22 | 30 | 37 | 55 | 55 | ||
660V / 690V | 5.5 | 7.5 | 10 | 15 | 18.5 | 30 | 33 | 37 | 45 | 55 | ||
Nominal issiqlik oqimi (A) | 20 | 20 | 32 | 40 | 50 | 60 | 80 | 80 | 125 | 125 | ||
Elektr quvvati | AC3 (x10⁴) | 100 | 100 | 100 | 100 | 80 | 80 | 60 | 60 | 60 | 60 | |
AC4 (x10⁴) | 20 | 20 | 20 | 20 | 20 | 15 | 15 | 15 | 10 | 10 | ||
Mexanik ishlash muddati (x104) | 1000 | 1000 | 1000 | 1000 | 1000 | 800 | 800 | 800 | 800 | 600 | 600 | |
Kontaktlar soni | 3P + YO'Q | 3P + NC + NO | ||||||||||
3P + bosimining ko'tarilishi |