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NUOMAK produces high-performance DC Moulded Case Circuit Breakers (DC MCCBs) designed specifically to handle high-voltage direct current protection in renewable energy and industrial DC distribution networks. Ranging from 16A to 1600A in 1-pole, 2-pole, 3-pole, and 4-pole configurations (operating voltages up to 1000V/1500V DC), our DC MCCBs deliver reliable protection against current overloads, short circuits, and reverse currents in solar PV arrays, battery storage systems (BESS), and EV charging infrastructure. Built to IEC/EN 60947-2 standards, NUOMAK provides distributors and renewable system integrators with factory-direct pricing, non-polarized options, and custom OEM manufacturing.
| ltem | Us oanbod |
| MOQ | 1000 st |
| Foarbyld | Fergese sample kin wurde levere foar bulkbestelling |
| Leading Times | Sample 1-3 dagen; Bulk Order: 30-60 wurkdagen. ôfhinklik fan de qtys |
| Haadprodukt | Feilige en betroubere foarme kofferstroombreker mei yntelligint ûntwerp en ynboude opsjes foar meardere funksjes |
| Logo oanpasse | Oannimme |
| Garânsje | 1 jier |
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Dielen Warehouse MCCB-1
Dielen Warehouse MCCB-2
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Dielen Warehouse MCCB-5
Produksje workshop MCCB-1
Produksje workshop MCCB-2
Produksje workshop MCCB-3
Produksje workshop MCCB-4
Produksje workshop MCCB-5
Mould-workshop
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Stamping dielen yn in hoeke fan de workshop
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Oars as wikselstroomnetwurken (AC) dêr't nul-oergongspunten elektryske bôgen op in natuerlike wize útdove, generearje gelijkstroomsystemen (DC) trochgeande, lestich te útdoven bôgen tidens storingsomstannichheden. Ynkeapmanagers dy't DC-gegoten stroombrekkers (DC MCCB's) ynkeapje, moatte strikte technyske kompatibiliteit garandearje mei sinne-fotovoltaïsche (PV) omvormers, batterijopslacharrays en yndustriële DC-ynfrastruktuer.
Nominale wurkspanning (Ue) & bôgeblustechnology: Soargje derfoar dat de breaker oerienkomt mei de DC-spanning fan it systeem (bygelyks 250V, 500V, 750V, 1000V, of 1500V DC). NUOMAK DC MCCB's hawwe spesjalisearre magnetyske útblaasbôge-skutten en útwreide kontaktgatten dy't trochgeande DC-bôgen fluch útrekke en blussen.
Polariteitseasken (net-polarisearre vs. polarisearre): Foar batterijopslachsystemen (BESS) wêr't stroom sawol yn oplaad- as ûntlaadrjochtingen streamt, binne net-polarisearre DC-MCCB's essensjeel om skea oan breakers te foarkommen ûnder omkearde stroomstream.
Framegrutte en poalkonfiguraasjes: Beskikber yn 1P-, 2P-, 3P- en 4P-searjekonfiguraasjes foar stroomwearden fan 16A oant 1600A, wêrtroch fleksibele searjebedrading de spanningsbestindichheid kin ferheegje.
Breekkapasiteit (Icu/Ics): Evaluearje de úteinlike koartslutingbrekkekapasiteit (Icu) oant 50kA by hege DC-spanningen om folsleine systeembeskerming te garandearjen tidens katastrofale koartslutingen.
Alle NUOMAK DC-getten stroombrekkers wurde produsearre ûnder ISO9001-sertifisearre prosessen en foldogge strikt oan de IEC/EN 60947-2-noarmen foar DC-leechspanningsskakelapparatuer. Elke DC-brekker ûndergiet routine fabryksynspeksje fan 100% - ynklusyf hege spanning diëlektryske wjerstân, DC-termyske kalibraasje, en meganyske skeakelduortests - wat soepele ymportneilibjen garandearret foar distribúsje yn Jeropeeske, Aziatyske, Midden-Easterske en Amerikaanske merken.
Sinnefotovoltaïske (PV) systemen: Haad DC-isolaasje en koartslutingsbeskerming tusken PV-kombineardoazen, sinnestringarrays en sintrale/string-omvormers.
Battery Energy Storage Systems (BESS): Bi-directional overload and fault protection for commercial and utility-scale lithium battery racks and uninterruptible power supplies (UPS).
EV Charging Infrastructure & DC Microgrids: High-voltage DC feeder protection for fast-charging stations and industrial DC distribution networks.
AC current naturally passes through a zero-voltage point 100 or 120 times per second, making arc extinguishing relatively easy. DC current maintains constant voltage without zero-crossing points, producing persistent, intense electrical arcs during trip clearance. DC MCCBs feature specialized internal magnetic arc chutes and wider contact gaps specifically engineered to stretch and break DC arcs safely. Standard AC MCCBs cannot be used in high-voltage DC applications without derating or risk of fire.
Yes. NUOMAK provides non-polarized DC MCCB models specifically engineered for energy storage systems (BESS) and bi-directional DC microgrids. Non-polarized DC MCCBs maintain full breaking capacity and arc-extinguishing performance regardless of whether current flows from charger-to-battery or battery-to-load.
For standard catalog models, our MOQ starts as low as 10 to 30 units per frame size to support trial orders. For custom OEM orders (including private label branding, custom casing colors, and special DC voltage ratings), the MOQ is typically 100 units. Standard factory production lead times range from 15 to 25 business days, backed by full ISO9001 quality certificates and CE test reports.
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