I-China Factory CJMM3-250L/3300 Electrical MCCB Molded Case Circuit Breaker

Incazelo emfushane:

I-CJMM3 Moulded case circuit breaker (ebizwa ngokuthi i-circuit breaker) inezici zobukhulu obuncane, amandla aphezulu okuphuka, i-arcing emfushane, kanye ne-anti-vibration. Ifanele amanethiwekhi okusabalalisa amandla ane-AC 50Hz, i-voltage yokusebenza elinganisiwe engu-400V, kanye ne-operating current elinganisiwe efika ku-250A nangaphansi. Isetshenziselwa ukusabalalisa amandla kagesi nokuvikela imigqa kanye nemishini yamandla ekugcwaleni ngokweqile, i-short circuit kanye nezinye izinkinga. Ingasetshenziswa futhi ekushintsheni okungajwayelekile kuma-circuit kanye nokuqala okungajwayelekile kwama-motor. I-circuit breaker ingafakwa ngokuqondile (okungukuthi, ukufakwa okuqondile) noma ngokuqondile (okungukuthi, ukufakwa okuqondile).

Lo mkhiqizo uhambisana ne-IEC60947-2 kanye ne-GB/T14048.2 “Imishini yokushintsha kanye nemishini yokulawula ene-voltage ephansi Ingxenye 2: Ama-circuit breakers”.

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Izimo Zokusebenza Nokufaka

Ukuphakama kwendawo yokufaka akudluli ku-2000m.
Izinga lokushisa lomoya elizungezile;
Umkhawulo ophezulu wokushisa komoya ozungezile awudluli ku-+40°C;
Izinga lokushisa lomoya elimaphakathi lamahora angama-24 alidluli ku-+35°C;
Umkhawulo ophansi wokushisa komoya ozungezile awuphansi kune--5°C;
Izimo zomkhathi:
Umswakama olinganiselwe womkhathi awudluli u-50% uma izinga lokushisa eliphezulu elizungezile lingu-+40°C. Kungaba nomswakama olinganiselwe ophezulu emazingeni okushisa aphansi. Uma izinga lokushisa eliphansi eliphakathi nenyanga lenyanga enemvula kakhulu lingadluli u-+25°C, umswakama olinganiselwe womkhathi awudluli u-+25°C. Umswakama olinganiselwe ophezulu ungama-90%, uma kucatshangelwa ukuminyana ebusweni bomkhiqizo ngenxa yokushintsha kwezinga lokushisa.
Izinga lokungcola: 3

Isigaba Somkhiqizo

Ngokusho kwamandla okuphula kwe-circuit breaker, ihlukaniswe yaba: uhlobo olujwayelekile (uhlobo lwe-S); uhlobo lwe-b oluphezulu (uhlobo lwe-H);
Ngokwendlela yokuxhuma ye-circuit breaker: a. Ukuxhuma izintambo phambi kwebhodi; b. Ukuxhuma izintambo ngemuva kwebhodi; c. Uhlobo lwe-plug-in; d. Uhlobo lokudonsa;
Ngokwendlela yokusebenza: a. Ukusebenza okuqondile ngesibambo; b. Ukusebenza ngokuphendula isibambo; c. Ukusebenza kukagesi;
Ngokwenani lezinsika: izinsika ezimbili; izinsika ezintathu; izinsika ezine;
Ngokwezesekeli: oxhumana nabo be-alamu, oxhumana nabo abasizayo, ukukhululwa kwe-shunt, ukukhululwa kwe-undervoltage;

Idatha Yobuchwepheshe

Isilinganiso se-circuit breaker

Imodeli	Isilinganiso sohlaka isilinganiso samanje Ku(mA)	Kulinganiswe okwamanje Phakathi ku)	Kulinganiswe ukusebenza i-voltage (V)	Kulinganiswe Ukuvikela i-voltage (V)	Kulinganiswe njengokugcina isifunda esifushane ukuphuka umthamo we-Icu(kA)	Ukusebenza okulinganiselwe i-short-circuit ukuphuka umthamo we-Ics(kA)	Inombolo of izinsika	I-Flashover ibanga (mm)
I-CJMM3-125S	125	16,20,25,32, 40,50,60,80, 100,125	400/415	1000	25	18	3P	≤50
I-CJMM3-125H	125	16,20,25,32, 40,50,60,80, 100,125	400/415	1000	35	25	3P	≤50
I-CJMM3-250S	250	100,125,160, 180,200,225, 250	400/690	800	35/10	25/5	2P,3P,4P	≤50
I-CJMM3-250S	250	100,125,160, 180,200,225, 250	400/690	600	50	35	2P,3P,4P	≤50

Izici zesenzo sokuphula isikhathi esiphambene sokukhululwa kwe-overcurrent kwe-distribution circuit breaker lapho zonke izigxobo zinikwa amandla ngesikhathi esisodwa

Hlola igama lamanje	Mina/Ngaphakathi	Isikhathi esimisiwe	Isimo sokuqala
Ngivumile ukuthi akukho ukukhubeka komsinga	1.05	Amahora ama-2(Ngaphakathi ＞63A), ihora eli-1(Ngaphakathi ≤63A)	Isimo sokubanda
Ukuguguleka kwamanje okuvunyelwene ngakho	1.3	Amahora ama-2(Ngaphakathi ＞63A), ihora eli-1(Ngaphakathi ≤63A)	Ngokushesha ngemva kokuhlolwa kochungechunge 1, qala

Izici zesenzo sokuphula isikhathi esiphambene sokukhululwa kwe-overcurrent kwe-circuit breaker ukuze kuvikelwe imoto lapho zonke izigxobo zinikwa amandla ngesikhathi esisodwa

Ukusetha okwamanje	Isikhathi esimisiwe	Isimo sokuqala	Isaziso
1.0In	>2h	Isimo sokubanda
1.2In	≤2h	Ngokushesha ngemva kokuhlolwa kochungechunge 1, qala
1.5In	≤4min	isimo sokubanda	10 ≤ Ku-≤ 250
1.5In	≤8min	isimo sokubanda	250 ≤ Ku-≤ 630
7.2In	4s≤T≤10s	isimo sokubanda	10 ≤ Ku-≤ 250
7.2In	6s≤T≤20s	isimo sokubanda	250 ≤ Ku-≤ 800

Izici zokusebenza okusheshayo ze-circuit breaker zokusabalalisa zibekwe ku-10In±20%, kanti izici zokusebenza okusheshayo ze-circuit breaker zokuvikela imoto zibekwe ku-12In±20%.

Umehluko phakathi kochungechunge lwe-M1 kanye nochungechunge lwe-M3 lwe-MCCB

Ama-Moulded case circuit breakers (MCCB) ayizingxenye ezibalulekile ezinhlelweni zikagesi, ahlinzeka ngokuvikelwa kokulayisha ngokweqile kanye nokwe-short-circuit. Uma kukhulunywa ngama-MCCB, uchungechunge lwe-M1 kanye nochungechunge lwe-M3 kuyizinketho ezimbili ezidumile, ngayinye inezici zayo kanye namakhono ayo. Ukuqonda umehluko phakathi kwalolu chungechunge kungasiza abasebenzisi ukuthi benze izinqumo ezinolwazi lapho bekhetha i-MCCB efanelana kahle nezidingo zabo ezithile.

I-M1 Series MCCB yenzelwe izinhlelo zokusebenza lapho ukusebenza okujwayelekile kwanele. Ihlinzeka ngokuvikelwa okuthembekile kwamasekethe nemishini, ngezici ezifana nezilungiselelo zohambo lokushisa kanye nolwe-magnetic ezilungisekayo. Ifanele izinhlelo zokusebenza ezahlukahlukene zezimboni nezentengiselwano, i-M1 Series inikeza ukuvikelwa okungabizi kakhulu ngaphandle kokubeka engcupheni ikhwalithi nokuphepha.

Ngakolunye uhlangothi, ama-M3 series molded case circuit breakers aklanyelwe ukuhlangabezana nezidingo zezinhlelo zikagesi eziyinkimbinkimbi nezibalulekile. Anikeza izici zokuvikela ezithuthukisiwe okuhlanganisa ukukhululwa kokushisa okulungisekayo kanye nokukhululwa kwe-magnetic, kanye nezinketho ezengeziwe zokuvikela amaphutha omhlaba kanye namakhono okuxhumana. I-M3 Series ilungele izinhlelo zokusebenza ezidinga ukusebenza okuthuthukisiwe kanye nokuguquguquka, njengezindawo ezinkulu zezimboni kanye nokufakwa kwengqalasizinda ebalulekile.

Omunye wemehluko omkhulu phakathi kwe-MCCBs yochungechunge lwe-M1 ne-M3 ukusebenza kwazo kanye nokusebenza kwazo. I-M1 Series inikeza isivikelo esithembekile sezinhlelo zokusebenza ezijwayelekile, kuyilapho i-M3 Series inikeza izici ezithuthukisiwe kanye nezinketho zezindawo ezidinga kakhulu. Ngaphezu kwalokho, uchungechunge lwe-M3 lungaba namandla okuphuka aphezulu kunochungechunge lwe-M1 futhi lungaphula amaza amaphutha aphezulu.

Ngamafuphi, ukukhethwa kwama-M1 kanye nama-M3 series molded case circuit breakers kuncike ezidingweni ezithile zesistimu kagesi ehambisanayo. I-M1 Series inikeza isivikelo esingabizi kakhulu sezinhlelo zokusebenza ezijwayelekile, kanti i-M3 Series inikeza izici ezithuthukisiwe kanye namakhono okufakwa okuyinkimbinkimbi nokubalulekile. Ukuqonda umehluko phakathi kwalolu chungechunge kubalulekile ekukhetheni i-molded case circuit breaker efaneleke kakhulu ukuqinisekisa ukuphepha nokuthembeka kwesistimu yakho kagesi.

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