{"id":834,"date":"2026-06-09T23:12:34","date_gmt":"2026-06-09T15:12:34","guid":{"rendered":"https:\/\/jutrion.com\/?page_id=834"},"modified":"2026-08-07T10:38:12","modified_gmt":"2026-08-07T02:38:12","slug":"dc-mcb","status":"publish","type":"page","link":"https:\/\/jutrion.com\/tl\/dc-mcb\/","title":{"rendered":"DC MCB"},"content":{"rendered":"
\n
\n

Mga DC Circuit Breaker para sa Solar PV at Energy Storage Applications<\/h1>\n\n\n\n

Ang JUTRION solar at energy storage DC circuit breaker series ay kumakatawan sa tugatog ng kaligtasang elektrikal para sa modernong imprastrakturang renewable. Partikular na ininhinyero upang mapaglabanan ang matinding thermal cycling at patuloy na direct current arcs na likas sa mga solar array at high capacity battery banks, ang aming mga breaker ay nagbibigay ng tumpak na thermal magnetic tripping. Mula sa compact din rail MCBs para sa residential solar strings hanggang sa industrial grade MCCBs para sa commercial storage loops, tinitiyak ng JUTRION ang tuluy-tuloy na system uptime at ganap na proteksyon ng asset.<\/p>\n\n\n\n

\n
MAKIPAG-UGNAYAN SA AMIN<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
\n
\"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n
\n
\n

Flexible na 1P hanggang 4P Configurations<\/strong><\/p>\n\n\n\n

Available sa 1P, 2P, 3P, at 4P pole structures upang seamless na tumugma sa iba't ibang wiring architectures, mula sa localized low-voltage DC lines hanggang sa high-voltage multi-phase isolated solar grounding networks.<\/p>\n<\/div>\n\n\n\n

\n

Versatile na 6A hanggang 125A Range<\/strong><\/p>\n\n\n\n

Nag-aalok ng tumpak na rated current selection mula 6A hanggang 125A, na nagbibigay ng tailored at highly accurate overcurrent protection para sa maliliit na solar string monitoring lines at malalaking commercial battery strings.<\/p>\n<\/div>\n\n\n\n

\n

Advanced na DC Arc Suppression<\/strong><\/p>\n\n\n\n

Nilagyan ng specialized internal magnetic blowing structures at reinforced arc chutes upang pilit na iunat at ligtas na patayin ang matitindi at tuluy-tuloy na direct current electrical arcs bago pa man magdulot ng pinsala.<\/p>\n<\/div>\n\n\n\n

\n

Kaligtasan sa Solar at Storage<\/strong><\/p>\n\n\n\n

Partikular na ininhinyero upang mapaglabanan ang matinding high-energy thermal cycling at bidirectional current flows sa panahon ng mabilis na charging at discharging phases sa mga solar array at battery enclosures.<\/p>\n<\/div>\n<\/div>\n\n\n\n

\n

Katalogo ng JUTRION Direct Current Miniature Circuit Breaker<\/h2>\n<\/blockquote>\n\n\n\n
\n
\n

JUTRION JUH3 Series Miniature Circuit Breaker<\/h3>\n\n\n\n

Mga Technical Parameter<\/strong><\/p>\n\n\n\n

Serye ng Modelo\uff1aJUH3
Rated na Kuryente\uff1a6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Bilang ng mga Pole\uff1a1P, 2P, 3P, 4P
Uri ng Pagkakabit\uff1a35mm Standard Din Rail Mounting<\/p>\n\n\n\n

Tumpak na Branch Circuit Calibration<\/strong>\uff1aDinisenyo na may highly sensitive internal thermal magnetic elements upang magbigay ng accurate at maaasahang overcurrent calibration para sa low voltage control loops at mas maliliit na terminal branch loads.<\/p>\n\n\n\n

Compact Modular Footprint\uff1a<\/strong>Nagtatampok ng standard modular width na seamless na sumasama sa mga standard distribution boards, na nagpapalaki ng rail space sa high density residential o commercial enclosures.<\/p>\n\n\n\n

Mahabang Mechanical Operating Life\uff1a<\/strong>Binuo gamit ang high wear resistant switching mechanisms upang matiyak ang maaasahang multi pole opening at closing operations sa loob ng maraming taon ng tuluy-tuloy na infrastructure duty.<\/p>\n<\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n
\n
\n

JUTRION JUH6 Series Miniature Circuit Breaker<\/h3>\n\n\n\n

Mga Technical Parameter<\/strong><\/p>\n\n\n\n

Serye ng Modelo\uff1aJUH6
Rated na Kuryente\uff1a80A,100A,125A
Bilang ng mga Pole\uff1a1P, 2P, 3P, 4P
Uri ng Pagkakabit\uff1a35mm Standard Din Rail Mounting<\/p>\n\n\n\n

High Current Heavy Duty Handling\uff1a<\/strong>Partikular na ininhinyero na may reinforced internal copper busbars at contact structures upang ligtas na madala at mailipat ang mabibigat na electrical loads hanggang 125A nang walang labis na thermal buildup.<\/p>\n\n\n\n

Pinahusay na Short Circuit Interruption\uff1a<\/strong>Nilagyan ng pinalaking arc extinguishing chambers at heavy duty grid plates upang pilit na sugpuin at alisin ang high energy fault currents sa mga main incoming lines.<\/p>\n\n\n\n

Matibay na Frame para sa Industrial Environments\uff1a<\/strong>Ginawa gamit ang premium na makapal na flame retardant housing materials na nagpapanatili ng structural integrity at precision calibration sa ilalim ng malupit at tuluy-tuloy na industrial operation.<\/p>\n<\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div>\n<\/div>\n\n\n\n
\n

JUTRION JUH3 Series kumpara sa JUH6 Series<\/strong><\/p>\n<\/blockquote>\n\n\n\n

Mga Technical Parameter<\/strong><\/th>JUTRION JUH3 Series<\/strong><\/th>JUTRION JUH6 Series<\/strong><\/th><\/tr><\/thead>
Saklaw ng Rated na Kuryente<\/strong><\/td>6A hanggang 63A<\/td>80A hanggang 125A<\/td><\/tr>
Bilang ng mga Pole na Available<\/strong><\/td>1P, 2P, 3P, 4P<\/td>1P, 2P, 3P, 4P<\/td><\/tr>
Pangunahing Pokus ng Application<\/strong><\/td>Branch circuits, control circuits, maliliit na solar strings, at residential systems<\/td>Main incoming circuits, heavy machinery distribution, at commercial energy storage systems<\/td><\/tr>
Disenyo ng Panloob na Istruktura<\/strong><\/td>Compact na modular na disenyo na may precision thermal-magnetic tripping components<\/td>Heavy-duty na frame na may reinforced copper conductors at pinalaking arc-extinguishing chambers<\/td><\/tr>
Paraan ng Pagkakabit<\/strong><\/td>35 mm standard na DIN-rail mounting<\/td>35 mm standard na DIN-rail mounting<\/td><\/tr>
Pangunahing Benepisyo sa Engineering<\/strong><\/td>Pina-maximize ang DIN-rail space sa high-density distribution enclosures<\/td>Safely switches higher currents while reducing abnormal internal heat buildup<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"\"<\/span>
\n

JUTRION \u2013 A HIGH-QUALITY DC MCB SUPPLIER<\/h3>\n\n\n\n
\n
GET YOUR DC MCB SOLUTION<\/strong><\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n
\n

JUTRION DC MCB Selection Guide and Ordering Criteria<\/h2>\n<\/blockquote>\n\n\n\n

To ensure optimal safety, system uptime, and complete code compliance for your direct current infrastructure, please follow these four critical technical criteria when selecting your JUTRION miniature circuit breaker series:<\/p>\n\n\n\n

\n
\n

Determine System Operating Voltage<\/strong><\/p>\n\n\n\n

Criteria:<\/strong> The rated operational voltage of the breaker must be equal to or greater than the maximum open circuit voltage of your DC system.
Selection:<\/strong> For low voltage control loops, use standard configurations. For solar PV strings or high voltage battery networks approaching 1000V DC, select multi pole series designed specifically for high voltage arc suppression.<\/p>\n<\/div>\n\n\n\n

\n

Match the Continuous Rated Current<\/strong><\/p>\n\n\n\n

Criteria:<\/strong> Select a rated current that handles continuous full load operation without nuisance tripping, while providing rapid thermal protection during genuine overcurrent events.
Selection:<\/strong> For light branch circuits, instruments, and monitoring lines, select the JUH3 Series (6A to 63A). For heavy incoming lines, main battery feeds, and large power distribution panel tracking, deploy the JUH6 Series (80A to 125A).<\/p>\n<\/div>\n<\/div>\n\n\n\n

\n
\n

Select the Correct Pole Configuration for Grounding<\/strong><\/p>\n\n\n\n

Criteria:<\/strong> The number of poles determines the total voltage handling capacity and physical isolation method of the positive and negative lines.
Selection:<\/strong> Use 1P or 2P configurations for lower voltage systems or single pole grounded networks. Deploy 3P or 4P configurations for ungrounded floating systems and high voltage renewable loops to simultaneously break both polarities for maximum safety during maintenance.<\/p>\n<\/div>\n\n\n\n

\n

Confirm Ordering Codes and Certifications<\/strong><\/p>\n\n\n\n

Criteria:<\/strong> Standardize your procurement by specifying exact model parameters, terminal tunnel dimensions, and required international low voltage compliance certificates.
Selection:<\/strong> Provide our sales engineering desk with your specific trip curves, accessories requirements (such as shunt trips or auxiliary contacts), and mounting dimensions to receive a finalized technical drawing and formal batch quotation.<\/p>\n<\/div>\n<\/div>\n\n\n\n

\n

FREQUENTLY ASKED QUESTIONS ABOUT DC MCBS<\/strong><\/h2>\n<\/blockquote>\n\n\n\n
\n

What is a DC MCB, and what is the difference between a DC MCB and an AC MCB?<\/h3>\n\n\n\n

A DC MCB is a specialized miniature circuit breaker engineered safely to interrupt overcurrents and short circuits in direct current networks. The critical difference lies in arc suppression. Alternating current naturally passes through a zero-voltage crossing point fifty or sixty times a second, which helps extinguish the electrical arc. Direct current stays at a constant, persistent voltage, meaning the arc never crosses zero and is exceptionally difficult to put out. Because of this, a DC MCB must contain intensive internal magnets and dedicated cooling structures to forcefully pull and extinguish the continuous direct current arc, whereas a standard AC MCB lacks these strong magnetic blowing elements and will fail catastrophically if applied to high-voltage DC lines.<\/p>\n<\/blockquote>\n\n\n\n

\n

How do I choose between the JUTRION JUH3 and JUH6 series for my project?<\/h3>\n\n\n\n

Selection depends entirely on your system current load requirements. The JUH3 series is rated from 6A to 63A, making it ideal for lighter localized terminal distribution, monitoring lines, control loops, and small residential solar strings. The JUH6 series handles larger heavy duty power paths from 80A up to 125A, incorporating beefier copper busbars and deeper frames to manage main incoming feeds and industrial machinery cabinets without dangerous thermal buildup.<\/p>\n<\/blockquote>\n\n\n\n

\n

Can I mix different wire sizes or copper types in the breaker connection terminals?<\/h3>\n\n\n\n

No, doing so introduces major electrical risks in high-power direct current setups. The tunnel connection terminals on our JUH3 and JUH6 series are precision engineered to apply even mechanical pressure across a uniform conductor cross-section. Mixing wires of different diameters or combining rigid solid wires with flexible stranded copper wires inside a single tunnel will create uneven contact pressure. This leads to loose gaps, high contact resistance, localized heating, and eventually terminal burnouts under continuous direct current loads. For total safety, always use identical wire sizes and apply proper crimped ferrule terminals to stranded copper lines.<\/p>\n<\/blockquote>\n\n\n\n

\n

What causes a DC MCB to trip normally, and how can I troubleshoot it?<\/h3>\n\n\n\n

A JUTRION DC MCB will trip for two standard safety reasons: thermal overload or a magnetic short circuit. A thermal trip happens slowly when downstream equipment draws slightly more current than the breaker rating over time, often caused by adding too many battery modules or load changes. A magnetic trip happens instantly due to a massive short circuit fault. To troubleshoot, always turn off the main power loop first. Inspect the line cables for insulation wear or loose connection terminals, check if the actual equipment power matches the rated continuous current of the breaker, and let the unit cool down for a few minutes before attempting a reset.<\/p>\n<\/blockquote>\n\n\n\n

\n

NEED THE RIGHT DC MCB FOR YOUR APPLICATION?<\/strong><\/p>\n\n\n\n

Tell us your system voltage, rated current, number of poles and application requirements. JUTRION will help you select a reliable and cost-effective DC MCB solution for solar PV, energy storage, DC distribution and other direct-current systems, with flexible OEM\/ODM support for your market and project needs.<\/p>\n<\/div>\n\n\n

\n Form ng Pagtatanong sa Produkto<\/legend> \n