DC Arc Extinction
Magnetic blowout chamber safely interrupts sustained DC arcs that conventional AC breakers cannot quench
DC Miniature Circuit Breaker Supplier
Purpose-built DIN rail DC MCBs for solar PV strings, battery storage, EV charging, and DC distribution — up to 1500VDC.
1P / 2P / 3P / 4P6A – 125A250V – 1500V DCB / C / D / K Curve
Available Options
DC MCB Pole Configurations
Engineered for DC Systems
Polarity-Independent
Bidirectional protection for PV strings and battery banks where current can flow either direction
DIN Rail Installation
35mm DIN rail mounting, tool-free snap-on design — identical footprint to AC MCBs
Solar / Storage / EV
Engineered for PV strings, battery storage cabinets, EV charging stations, and DC traction systems
Technical Specifications
DC MCB Specification Summary
POLES1P–4P
RATED CURRENT6A–125A
RATED VOLTAGEUp to 1500VDC
TRIP CURVEB/C/D/K
| Product Name | DC Miniature Circuit Breaker |
|---|---|
| Poles | 1P, 2P, 3P, 4P |
| Rated Current | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A |
| Rated Voltage | DC 250V / 500V / 750V / 1000V / 1500V |
| Trip Curve | B Curve, C Curve, D Curve, K Curve |
| Breaking Capacity | 6kA / 10kA DC (model dependent) |
| Arc Interruption | Magnetic blowout, polarity-independent |
| Mounting | 35mm DIN Rail |
| Application | Solar PV, battery storage, EV charging, DC power systems |
| Standards | IEC 60947-2 / EN 60947-2 |
| Customization | Logo, label, and packaging options available |
About TPKELE
Your Dedicated DC MCB Supply Partner
Based in Wenzhou — China's electrical manufacturing capital — TPKELE specializes in low-voltage DC and AC circuit protection components for solar, storage, and industrial projects worldwide.
Our facility covers the full production cycle from mold tooling and injection to assembly, testing, and packaging. Every DC MCB batch undergoes 100% high-voltage DC verification before shipment.
- In-house production with full QC traceability
- OEM/ODM capability — custom logo, label, and packaging
- IEC 60947-2 and CE certified DC product lines
- Export experience to 50+ countries — strong solar EPC client base
Beyond Manufacturing
More Than Just a Circuit Breaker Manufacturer
At TPKELE, we go beyond manufacturing by offering a suite of value-added services tailored to meet your project needs. Every customer receives personalized attention, expert guidance, and seamless support throughout their journey with us.
Service Consultation
Whether your requirements are straightforward or complex, our team provides expert advice and technical consultation. For more intricate projects, we offer in-depth engineering support to ensure optimal product selection, guaranteeing safety and efficiency in your electrical systems.
Product Recommendations
Unsure which circuit breaker suits your system? Our specialists provide free, customized recommendations based on your specific operational and environmental requirements, ensuring you get the perfect fit for your electrical protection needs.
Logistics Support
If you lack a reliable freight forwarder, we can arrange transportation from our factory to your project site at no extra cost. Our logistics team ensures timely and secure delivery to keep your project on schedule, minimizing downtime and delays.
Installation Support
Need help with installation? Our technical team is available to answer your questions or provide hands-on support. For larger projects, we can even dispatch an engineer to your site for on-the-ground assistance, ensuring seamless integration within your electrical network.
DC MCB Supply · 72-Hour Quotation