Condensator Pornire cu Fire 7,5uF-450V
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Condensator pornire motor 7,5uF 450V pentru electrocasnice si sisteme industriale
Acest condensator de pornire asigura startul eficient al motoarelor electrice din echipamente casnice si industriale, de la aparate de aer conditionat si frigidere pana la pompe de apa si compresoare. Fabricat cu dielectric autovindecabil si carcasa rezistenta din plastic ignifug, ofera fiabilitate pe termen lung in conditii de functionare intense. Conectarea se face rapid prin cele doua fire integrate, fara necesitatea de componente suplimentare.
Ce obtii cu acest produs
- Start eficient pentru motoare electrice de la 0,25 kW la 1,5 kW — condensatorul elimina problemele de pornire lenta sau blocaje la startul frigiderelor, ventilatoarelor si pompelor
- Instalare rapida prin fire integrate — conectezi direct la bornele motorului, fara accesorii suplimentare sau sudura
- Rezistenta termica extinsa de la -40°C la +85°C — functioneaza constant in camere frigorifice, zone exterioare sau spatii industriale fara climatizare
- Protectie autovindecabila la supratensiuni — dielectricul SH reface automat izolarea dupa descarcari bruste, prelungind durata de viata
- Compatibil cu sisteme monofazate 230V si trifazate 400V — se adapteaza la majoritatea instalatiilor casnice si industriale din Romania
- Material ignifug certificat UL 94 V-2 — reduce riscul de incendiu in cazuri extreme de supraincalzire sau scurtcircuit
Cum functioneaza si cum se instaleaza
Condensatorul stocheaza si elibereaza energie la pornirea motorului, oferind curentul suplimentar necesar pentru a invinge inertia mecanica initiala. Se conecteaza in paralel cu infasurarea auxiliara a motorului, prin cele doua fire: maronie (faza) si albastra (nul). Montajul dureaza sub 10 minute: opresti alimentarea, deconectezi condensatorul defect (daca exista), conectezi firele noului condensator conform schemei de pe eticheta motorului, apoi fixezi condensatorul cu coliere sau suport metalic.
Functionarea este instantanee: la fiecare pornire, condensatorul creeaza un defazaj electric care genereaza cuplul de start, apoi continua sa sustina functionarea uniforma a motorului. Durata de viata: 10.000 ore la 400V, 3.000 ore la 450V, conform claselor de fiabilitate B si C.
Intrebari frecvente
Cum stiu daca condensatorul motorului meu este defect?
Semnele clasice: motorul nu porneste deloc, balne zgomote straine la pornire, se incalzeste excesiv sau declanseaza siguranta. Testezi cu un multimetru setat pe capacitanta — daca citirea difera cu peste 10% de valoarea nominala (7,5uF), condensatorul trebuie inlocuit.
Pot folosi un condensator de 8uF in loc de 7,5uF?
Da, o diferenta de pana la 10% este acceptabila si nu afecteaza functionarea motorului. Important este ca tensiunea noului condensator sa fie egala sau mai mare decat cea a condensatorului original — nu instala niciodata un condensator cu tensiune mai mica.
Cum descarc in siguranta un condensator inainte de inlocuire?
Intotdeauna opreste curentul electric din tablou. Apoi scurtcircuiteaza cei doi poli ai condensatorului cu o surubelnita izolata sau rezistenta 10kΩ timp de 5 secunde — astfel elimini orice sarcina reziduala periculoasa.
Specificatii tehnice
| Capacitate nominala | 7,5 µF |
| Toleranta capacitate | ±5% |
| Tensiune nominala | 450V AC (400V/500V compatibil) |
| Frecventa | 50-60 Hz |
| Durata de viata | 10.000h la 400V / 3.000h la 450V |
| Temperatura functionare | -40°C ~ +85°C |
| Tip contact | 2 fire (maro + albastru) |
| Dielectric | Polipropilena cu autovindecabil SH |
| Factori de dis |
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