GA&DA menyediakan pemutus arus (circuit breaker) jenis AC MCB, AC MCCB, DC MCB, DC MCCB, RCCB, dan RCBO untuk panel distribusi tegangan rendah, kabinet kontrol industri, sistem tenaga surya fotovoltaik (PV), sistem baterai, serta peralatan listrik OEM. Kami menyediakan layanan pemilihan model, pemesanan dalam jumlah besar, penyesuaian merek OEM/ODM, dan solusi perlindungan listrik yang lengkap.
Pemutus arus adalah perangkat perlindungan listrik yang secara otomatis memutus sirkuit ketika terjadi kelebihan beban, korsleting, kebocoran arus, atau kondisi arus yang tidak normal. Fungsi utamanya adalah melindungi kabel, peralatan listrik, panel distribusi, dan beban yang terhubung dari kerusakan yang disebabkan oleh arus berlebih.
Berbeda dengan sekring, yang harus diganti setelah digunakan, pemutus arus biasanya dapat di-reset setelah gangguan diatasi. Hal ini menjadikannya perangkat perlindungan yang praktis untuk sistem kelistrikan perumahan, komersial, industri, tenaga surya fotovoltaik, dan arus searah.
Pemutus arus dipilih berdasarkan jenis sistem, tegangan pengenal, arus pengenal, kapasitas pemutusan, jumlah kutub, fungsi perlindungan, dan lingkungan pemasangan. Sebagai contoh, sistem arus bolak-balik (AC) biasanya menggunakan MCB AC atau MCCB AC, sedangkan sistem tenaga surya fotovoltaik (PV) dan sistem baterai memerlukan pemutus arus bertegangan searah (DC) dengan kemampuan memadamkan busur listrik yang memadai.
Pemutus arus memantau arus yang mengalir melalui suatu rangkaian. Apabila arus melebihi nilai pengenal atau ketika terjadi gangguan, mekanisme pemutusan internal akan membuka kontak dan memutus rangkaian.
Pada rangkaian arus bolak-balik (AC), arus secara alami melintasi titik nol pada setiap siklus, yang membantu memadamkan busur listrik. Pada rangkaian DC, tidak ada titik persilangan nol alami, sehingga pemutus arus DC memerlukan struktur pemadam busur listrik khusus. Inilah sebabnya mengapa MCB DC dan MCCB DC harus digunakan untuk sistem PV surya, sistem baterai, dan distribusi daya DC.
Pemutus arus AC dan DC dirancang untuk sistem kelistrikan yang berbeda. Keduanya tidak boleh digunakan secara bergantian, kecuali jika produk tersebut secara jelas dinyatakan sesuai untuk aplikasi AC dan DC.
| Item Perbandingan | Pemutus Arus AC | Pemutus Arus DC | Catatan Pemilihan |
|---|---|---|---|
| Jenis Arus | Dirancang untuk sistem arus bolak-balik di mana arah arus berubah secara berkala. | Dirancang untuk sistem arus searah di mana arus mengalir ke satu arah. | Pastikan terlebih dahulu apakah sistem Anda menggunakan arus bolak-balik (AC) atau arus searah (DC) sebelum memilih pemutus arus. |
| Pemadaman Busur Listrik | Pemutusan busur listrik menjadi lebih mudah karena arus bolak-balik (AC) secara alami melewati titik nol pada setiap siklusnya. | Membutuhkan desain pemadaman busur yang lebih andal karena arus DC tidak memiliki titik nol alami. | Sistem DC memerlukan produk MCB DC atau MCCB DC khusus. |
| Jenis Produk yang Umum | MCB AC, MCCB AC, RCCB, RCBO. | MCB DC, MCCB DC. | Pilih jenis produk sesuai dengan fungsi perlindungan dan tingkat arus. |
| Rentang Tegangan Umum | Umumnya digunakan pada sistem distribusi arus bolak-balik (AC) tegangan rendah, seperti 230 V, 400 V, dan lainnya. | Umumnya digunakan pada sistem tenaga listrik DC 250 V, 500 V, 1.000 V, dan sistem tenaga listrik DC lainnya. | Tegangan pengenal harus sama dengan atau lebih besar dari tegangan sistem. |
| Aplikasi Utama | Papan distribusi untuk perumahan, panel listrik komersial, kabinet kontrol industri, mesin, dan sistem kelistrikan gedung. | Sistem PV surya, kotak penghubung PV, sistem penyimpanan energi baterai, sistem pengisian daya kendaraan listrik, pasokan listrik untuk telekomunikasi, dan panel distribusi arus searah. | Sistem tenaga surya dan baterai sebaiknya menggunakan pemutus arus yang dirancang untuk arus searah (DC). |
| Polarity Requirement | Usually less sensitive to polarity in standard AC circuits. | Some DC circuit breakers may have polarity requirements depending on design and wiring. | Check the wiring diagram and product markings before installation. |
| Breaking Capacity | Selected according to the expected short-circuit current in AC distribution systems. | Selected according to the DC fault current and system voltage. | Breaking capacity is critical for safe fault interruption. |
| Installation Method | Commonly installed on DIN rails or inside distribution panels. | Commonly installed in PV combiner boxes, battery cabinets, DC panels, or control enclosures. | Confirm space, wiring direction, and enclosure type. |
| Recommended Use | Suitable for AC power distribution and equipment protection. | Suitable for DC circuit protection where DC arc interruption is required. | AC breakers should not replace DC breakers unless clearly rated for DC use. |
Not sure whether you need an AC circuit breaker or a DC circuit breaker? Send us your system voltage, rated current, number of poles, application, and installation environment. GA&DA will help you select a suitable circuit breaker model for your project.
Ask for Circuit Breaker Selection SupportGA&DA combines real manufacturing capability, standardized assembly, organized inventory, and responsive service support to provide reliable circuit breakers and low-voltage electrical protection products for global buyers. From automated production and precision component processing to warehouse management and delivery, our factory system helps distributors, project contractors, and OEM/ODM partners source with confidence.
Advanced production equipment helps improve efficiency, consistency, and stable output.
Standardized assembly processes support reliable product performance.
Organized inventory management supports faster order handling and delivery.
Component processing capability helps improve product accuracy and reliability.
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Send us your product requirements, target market, quantity, and technical parameters. GA&DA will help you match suitable circuit breaker products and provide a professional quotation.
Solar PV systems require reliable circuit protection on both the DC side and the AC side. GA&DA provides DC MCB, DC MCCB, DC Fuse, DC SPD, AC MCB, AC MCCB, and AC SPD products for PV combiner boxes, inverters, distribution panels, and complete solar protection systems.
PV string power generation
String collection and protection
DC MCB / DC MCCB
DC Fuse / DC SPD
DC to AC conversion
AC MCB / AC MCCB
AC SPD
Power distribution and load protection
The DC side of a solar PV system usually includes PV strings, PV combiner boxes, battery systems, and inverter input circuits. Because DC current has no natural zero-crossing point, DC-rated circuit breakers and protection devices are required for safe fault interruption.
After the inverter converts DC power into AC power, the AC output side also needs reliable protection. AC circuit breakers and surge protection devices help protect distribution panels, downstream equipment, and connected loads.
Send us your PV system voltage, string quantity, current rating, inverter capacity, and installation environment. GA&DA will help you select suitable DC and AC protection products.
GA&DA supports OEM and ODM circuit breaker supply for distributors, panel builders, solar system integrators, electrical wholesalers, and equipment manufacturers. We can provide AC MCB, DC MCB, MCCB, RCCB, RCBO, and related electrical protection products based on your market, application, quantity, branding, and packaging requirements.
Whether you need private label circuit breakers, customized packaging, product catalog support, or mixed orders with SPD, fuses, and combiner boxes, our team can help you match suitable models and provide a professional quotation.
Confirm product type, parameters, logo, packaging, and target market.
Recommend suitable MCB, MCCB, RCCB, RCBO, or DC protection products.
Arrange production, labeling, packaging, and quality inspection.
Support bulk orders, mixed orders, export packaging, and shipment coordination.
Explore our technical articles to better understand circuit breaker selection, types and applications.
Penangkal lonjakan tegangan membatasi tegangan berlebih sementara; pemutus arus mengatasi kelebihan beban dan korsleting. Bandingkan fungsi, penerapan, dan koordinasinya.
Learn how to choose the right solar circuit breaker for PV systems, including DC MCB, DC MCCB, voltage rating, current rating, poles, breaking capacity, and installation points.
Electric Circuit Breakers: Product Overview Electric circuit breakers are essential safety devices designed to protect electrical systems from damage caused by overcurrent, short circuits, and
MCB is generally used for lower-current circuits and compact distribution boards. MCCB is used for higher-current applications and systems that require higher breaking capacity.
RCCB provides residual current protection, while RCBO combines residual current protection with overload and short-circuit protection.
AC circuit breakers should not be used in DC systems unless the product is clearly rated for DC applications. DC circuits require breakers designed for DC arc extinguishing.
Solar PV systems commonly use DC MCBs or DC MCCBs on the DC side and AC circuit breakers on the AC side after the inverter.
You need to confirm AC or DC system, rated voltage, rated current, breaking capacity, number of poles, installation method and application.
