Buku Lotsogolera Kusankha DIN Rail Terminal Block: Ma Ratings Apano, Zipangizo, ndi Miyezo Yoyikira

TL;DR

Kusankha block yoyenera ya DIN rail terminal ya gulu lowongolera mafakitale kumafuna kufananiza magawo atatu: mulingo wapano uyenera kupitirira katundu wokulirapo wa dera ndi osachepera 20%, zinthu zomangira ziyenera kupirira malo ogwirira ntchito, ndipo mbiri yoyikira iyenera kutsatira miyezo ya EN 60715. Bukuli likufotokoza zonse zomwe zafotokozedwa ndi deta yoyezera komanso zolemba zenizeni za ntchito.

Kwa zaka zoposa khumi zopangira ma terminal block a OEM ku North America, Europe, ndi Southeast Asia, tawona zolakwika zomwezo zosankhidwa zikubwerezedwanso - ma overblock akuluakulu a ma signals otsika mphamvu, ma rails ocheperako a ma block olemera a ma multilevel, ndi kusalingana kwa zinthu zomwe zimapangitsa kuti minda ilephereke. Bukuli lilipo kuti lichotse zolakwikazo.

Kodi Ma Ratings A DIN Rail Terminal Blocks Ali Kuti Panopa?

Ma rating a DIN rail terminal block amayambira pa 24A pa ma 2.5mm2 feed-through blocks wamba mpaka 232A pa ma power blocks olemera a 95mm2, monga momwe zafotokozedwera ndi IEC 60947-7-1 ndi UL 1059 standards.

Chigawo chilichonse cha terminal chili ndi ma rating awiri a current: rated operational current (Ie) pa IEC 60947-7-1 ndi UL-rated current. Nthawi zambiri zimakhala zofanana — koma nthawi zina —. Mphamvu yeniyeni yomwe chipolopolocho chinganyamule imadalira gawo la conductor, kutentha kwa ambient, komanso ngati chipolopolocho chayikidwa mu single-layer kapena stacked configuration.

Ma Ratings Anthawi Zonse Potengera Gawo la Waya

Zinthu Zochititsa Chidwi Zimene Simungathe Kuzinyalanyaza

Chipika chilichonse cha terminal chiyenera kuchotsedwa ntchito chikayikidwa pamalo okhazikika kwambiri kapena kutentha kozungulira kuposa 40C. Kutengera ndi malamulo a IEC 60947-1, chulukitsani mphamvu yovotera ndi:

• Kutentha kozungulira pa 60C: kuchepetsa kufika pa 80% ya mphamvu yovotera
• Kutentha kozungulira pa 80C: kuchepetsa kufika pa 65% ya mphamvu yovotera
• Ma blocks okhala ndi ma level angapo (ma level atatu kapena kupitirira): kuchepetsa kufika pa 85% pa mlingo uliwonse
• Chipinda chotsekedwa chokhala ndi mpweya wochepa: kuchepetsa kufika pa 80%

Ndi Zinthu Ziti Zoyenera Kusankha?

PA66 (Nylon 66) yokhala ndi V-0 yoyaka moto ndiyo njira yodziwika bwino yogwiritsira ntchito DIN rail terminal block housings, yomwe imagwira ntchito kuyambira -40C mpaka +120C, pomwe polycarbonate (PC) ndiyo yabwino kwambiri pakugwiritsa ntchito zinthu zowonekera bwino zomwe zimafuna kukana kwambiri kutsatira.

Kodi Miyezo Yokwera Sitima ya DIN ndi Chiyani?

Ma block a DIN rail terminal amaikidwa pa ma profiles a TS35 (m'lifupi mwa 35mm, kuya kwa 7.5mm kapena 15mm) kapena TS32 (m'lifupi mwa 32mm) monga momwe zafotokozedwera ndi EN 60715 ndi DIN EN 50022, ndipo TS35 ndiye muyezo wamakampani opitilira 90% ya ma panel owongolera mafakitale.

Momwe DIN Rail Terminal Imatsekera Phiri

Ma block ambiri amakono a DIN rail terminal amagwiritsa ntchito njira yotsekera popanda zida: block imakhudza mlomo wapamwamba wa rail poyamba, kenako imazungulira pansi mpaka phazi lodzaza ndi masika litagwera pa mlomo wapansi.

1. Lumikizani Chotchinga cha terminal pa ngodya ya madigiri 15-20, ndikulumikiza chogwirira chapamwamba pamphepete mwa njanji ya TS35.
2. Sinthirani chipikacho chikatsike pansi mpaka phazi la pansi la kasupe litakhudza m'mphepete mwa njanji yapansi.
3. Kanikizani mwamphamvu — muyenera kumva phokoso lomveka bwino pamene kasupe wa mphamvu akulowa m'malo mwake kumbuyo kwa njanji.
4. Tsimikizani kuchitapo kanthu poyesa kukweza chipikacho mmwamba popanda kukanikiza tabu yotulutsira.

Satifiketi ya UL vs CE: Zomwe Mainjiniya Ayenera Kutsimikizira

Pa mapulojekiti aku North America, satifiketi ya UL 1059 ndi yofunikira, yomwe imaphimba ma terminal blocks mpaka 600V; pa mapulojekiti a EU, chizindikiro cha CE malinga ndi IEC 60947-7-1 ndiye chofunikira mwalamulo, ndipo mapulojekiti ambiri amafunikanso satifiketi ya TUV kapena VDE.

Momwe Mungatsimikizire Zitsimikizo Musanayitanitse

1. Satifiketi ya UL: Tsimikizani nambala ya fayilo ya UL pa UL Product Database.
2. Chilengezo cha CE cha Kutsatira Malamulo: Muyenera kugwiritsa ntchito IEC 60947-7-1. Tsimikizirani pa Tsamba lovomerezeka la IEC.
3. Satifiketi ya TUV kapena VDE: Tsimikizani pa TÜV Rheinland kapena VDE malo osungiramo zinthu zakale.
4. Zilengezo za RoHS ndi REACH: Chofunika kuti munthu alowe mu EU.

Momwe Mungasankhire Mtundu Woyenera wa Terminal Block

Mitundu isanu ndi iwiri ikuluikulu ya ma DIN rail terminal blocks — feed-through, ground, fuse, disconnect, multi-level, sensa, ndi power distribution — iliyonse imagwira ntchito yosiyana ya mawaya.

Mtundu wa Screw vs Spring-Clamp: Kuyerekeza kwa Ukadaulo Wolumikizira

Ma block a terminal a mtundu wa screw amapereka mphamvu yowonjezereka yolumikizira (3-5 Nm) pakugwiritsa ntchito mphamvu yamagetsi yoposa 100A, pomwe ma block a spring-clamp amapereka mawaya othamanga (pafupifupi 40% nthawi yocheperako yokhazikitsa) ndipo amalamulira mawaya a makabati kuyambira 24A mpaka 65A.

Mtundu Wokulungika vs Spring-Clamp vs IDC: Kuyerekeza kwa Miyeso Isanu

Poyerekeza ndi miyeso isanu yoyezera, spring-clamp imapereka bwino kwambiri pa 90% ya ntchito zowongolera mafakitale, pomwe screw-type imayang'anira mphamvu yamagetsi yamphamvu ndipo IDC imayang'anira makina opangira mawaya apamwamba.

Ndi iti yomwe muyenera kusankha?

Sankhani Mtundu wa Screw pamene: Mphamvu yamagetsi ya dera imapitirira 65A, waya wodutsa gawo umapitirira 16mm2, malo ogwedera kwambiri, kapena ogwira ntchito ophunzitsidwa ndi zida za torque.

Sankhani Chitseko cha Spring pamene: Kugwiritsa ntchito ndi 65A kapena kuchepera (kumakhudza >85% ya mabwalo amafakitale), liwiro la mawaya ndilofunika kwambiri, kapena kusintha kwa waya pafupipafupi komwe kumayembekezeredwa.