{"id":836,"date":"2026-06-09T23:12:45","date_gmt":"2026-06-09T15:12:45","guid":{"rendered":"https:\/\/jutrion.com\/?page_id=836"},"modified":"2026-08-20T15:39:32","modified_gmt":"2026-08-20T07:39:32","slug":"%e0%bb%80%e0%ba%84%e0%ba%b7%e0%bb%88%e0%ba%ad%e0%ba%87%e0%ba%95%e0%ba%b1%e0%ba%94%e0%ba%a7%e0%ba%bb%e0%ba%87%e0%ba%88%e0%ba%ad%e0%ba%99%e0%bb%84%e0%ba%9f%e0%ba%9f%e0%bb%89%e0%ba%b2%e0%ba%81%e0%ba%b0","status":"publish","type":"page","link":"https:\/\/jutrion.com\/lo\/dc-mccb\/","title":{"rendered":"DC MCCB"},"content":{"rendered":"
\n
\n

Industrial DC Molded Case Circuit Breakers (DC MCCB)<\/h1>\n\n\n\n

JUTRION heavy duty DC Molded Case Circuit Breakers are engineered for high voltage direct current systems up to 1500V DC and rated currents up to 1600A. Built to withstand harsh industrial and solar environments, our DC MCCBs deliver reliable overload, short circuit, and isolation protection for solar combiner boxes, central inverters, and battery energy storage systems.<\/p>\n<\/div>\n\n\n\n

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

Key Features of JUTRION DC Molded Case Circuit Breakers<\/h2>\n\n\n\n
\n
\n

High Voltage and High Current Capacity<\/strong><\/p>\n\n\n\n

Specially engineered to handle high voltage direct current systems up to 1500V DC and rated current loads up to 1600A, meeting heavy duty industrial demands.<\/p>\n<\/div>\n\n\n\n

\n

Specialized DC Arc Extinguishing<\/strong><\/p>\n\n\n\n

Features advanced internal magnetic blowing structures and elongated arc chutes to rapidly stretch and extinguish persistent DC electrical arcs safely.<\/p>\n<\/div>\n\n\n\n

\n

Optimized for Solar and Battery Energy Storage<\/strong><\/p>\n\n\n\n

Provides reliable overload and short circuit protection perfect for centralized solar inverters, PV combiner boxes, and battery energy storage systems.<\/p>\n<\/div>\n\n\n\n

\n

Reliable Bi-Directional Protection<\/strong><\/p>\n\n\n\n

Designed without polarity restrictions to deliver consistent and safe circuit isolation even when current flows in reverse during battery charging or discharging cycles.<\/p>\n<\/div>\n<\/div>\n<\/blockquote>\n\n\n\n

\n

JUTRION DC Molded Case Circuit Breaker (DC MCCB) Series<\/h2>\n\n\n\n

The JUTRION DC Molded Case Circuit Breaker series represents the pinnacle of heavy duty circuit protection, specifically engineered to meet the rigid demands of modern high voltage direct current infrastructure. Built to operate seamlessly under extreme thermal and mechanical stress, our DC MCCBs deliver ultra reliable fault isolation with zero polarity limitations. Whether integrated into utility scale solar arrays, central inverter stations, or heavy commercial battery storage facilities, the JUTRION series ensures continuous grid stability, maximum safety, and an extended operational lifespan for your critical downstream assets.<\/p>\n<\/blockquote>\n\n\n\n

\n
\n

JUTRION-JRM1 Series 1P DC Molded Case Circuit Breaker<\/h3>\n\n\n\n

Space Saving Compact Design<\/strong> Features a streamlined physical footprint that maximizes available rail space, making it perfect for high density control panels and compact distribution enclosures.<\/p>\n\n\n\n

Optimized for Low Voltage Single Pole Systems<\/strong> Engineered specifically to provide cost effective and precise overcurrent protection for single pole isolated or single pole grounded DC lines.<\/p>\n\n\n\n

Rapid Thermal Magnetic Tripping<\/strong> Equipped with responsive internal thermal magnetic elements to clear dangerous short circuits instantly and protect sensitive downstream electronics.<\/p>\n<\/div>\n\n\n\n

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

JUTRION-JRM1 Series 2P DC Molded Case Circuit Breaker<\/h3>\n\n\n\n

Full Positive and Negative Simultaneous Isolation<\/strong> Breaks both the positive and negative poles at the exact same time, providing absolute physical separation and maximum safety for operator maintenance.<\/p>\n\n\n\n

High Voltage Arc Suppression Capacity<\/strong> Built with reinforced dual pole arc chutes to forcefully stretch and extinguish intense, persistent DC electrical arcs generated in higher voltage lines.<\/p>\n\n\n\n

Engineered for Solar PV and BESS Applications<\/strong> Designed to handle severe cyclic load changes and high ambient temperatures inside solar combiner boxes and industrial battery energy storage systems.<\/p>\n<\/div>\n\n\n\n

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

Core Applications<\/h3>\n<\/blockquote>\n\n\n\n

It is tailored for industrial engineers and procurement managers, focusing on the real-world infrastructure where your JUTRION-JRM1 series is deployed. It contains no special symbols or non-English characters, making it completely safe to copy and paste directly into WordPress:<\/strong><\/p>\n\n\n\n

Solar PV Combiner Boxes and Inverters<\/strong> The JRM1 series provides reliable circuit isolation and overcurrent protection inside string combiner boxes and centralized solar inverters, safely clearing faults generated by solar arrays.<\/p>\n\n\n\n

Battery Energy Storage Systems (BESS)<\/strong> Optimized for commercial and industrial battery banks, providing critical short circuit protection during high-energy charging and discharging cycles in energy storage enclosures.<\/p>\n\n\n\n

DC Microgrids and EV Charging Infrastructure<\/strong> Ideal for protecting localized direct current distribution networks, industrial automation control loops, and high-power DC fast-charging station substations.<\/p>\n\n\n\n

Telecom Power Supply and Datacenters<\/strong> Delivers continuous, fail-safe circuit protection for critical backup power supplies, heavy-duty UPS systems, and telecom base station distribution panels.<\/p>\n\n\n\n

\n\n\n\n

Questions Regarding DC MCCB<\/h2>\n\n\n\n
\n

What is the technical difference between 1P and 2P DC Molded Case Circuit Breakers?<\/strong><\/h3>\n<\/blockquote>\n\n\n\n

The main difference is the number of poles and voltage capability. A 1P DC MCCB is designed for lower voltage systems and single pole grounded networks. A 2P DC MCCB breaks both the positive and negative lines simultaneously, providing complete physical isolation which is required for higher voltage systems and ungrounded floating circuits.<\/p>\n\n\n\n

\n

Can I use the JUTRION-JRM1 series in an AC electrical network?<\/strong><\/strong><\/h3>\n<\/blockquote>\n\n\n\n

No. Direct current arcs do not have a natural zero-crossing point like alternating current, making DC arcs much harder to extinguish. The JRM1 series features specialized internal magnetic blowing elements designed specifically to handle the high energy of direct current. Using it in an AC system can cause incorrect tripping or failure to clear faults.<\/p>\n\n\n\n

\n

Does the JRM1 series support bi-directional current flow for battery systems?<\/strong><\/strong><\/strong><\/h3>\n<\/blockquote>\n\n\n\n

Yes. The JUTRION-JRM1 series features a non-polar design. This means it provides identical short circuit and overload protection regardless of whether the current is flowing forward or backward, making it ideal for the charging and discharging cycles of battery energy storage systems.<\/p>\n\n\n\n

\n

What manufacturing and testing standards do JUTRION DC MCCBs follow?<\/strong><\/strong><\/strong><\/strong><\/h3>\n<\/blockquote>\n\n\n\n

All JUTRION-JRM1 series circuit breakers are manufactured in our specialized production facilities following strict ISO9001 quality management standards. Every single unit undergoes rigorous factory testing for insulation resistance, thermal tripping, and magnetic calibration before shipment to ensure complete compliance with international low-voltage electrical safety requirements.<\/p>\n\n\n\n

CHOOSE JUTRION FOR UNCOMPROMISING DIRECT CURRENT PROTECTION<\/strong><\/p>\n\n\n

\n Product Inquiry Form<\/legend> \n