Purpose-built for photovoltaic strings, combiner stations, inverter DC inputs and battery energy storage. Up to 1500V DC, IEC-certified, and engineered to be specified by solar EPCs, distributors and OEM buyers worldwide.
Protect Every Watt — From Solar to Socket.
Solar DC miniature circuit breakers with arc-quenching contacts for PV strings, DC bus and battery storage. 1P–4P, 6–63A, up to 1500V DC, IEC 60947-2 design.
PV DC surge protective devices for combiner boxes and inverter DC inputs. 600V / 1000V / 1500V Uoc, Type 1+2 / Type 2, pluggable cartridges with visual status windows.
IP65 PV combiner boxes pre-assembled with DC fuses, DC SPDs and DC MCBs. Plastic and metal series, 2 / 4 / 6 / 8 / 12 / 16 string inputs, 1000V / 1500V DC ratings.
Solar Applications
1500V DC architecture with combiner boxes feeding inverter shelters — DC MCBs and DC SPDs sized for high-current strings.
1000V / 1500V combiner boxes, DC string protection and Type 2 DC SPDs for rooftop PV across factories, warehouses and retail.
Compact plastic combiner boxes with integrated DC fuse, DC SPD and DC MCB — clean BOS for installer-friendly residential PV.
DC MCBs for battery DC bus protection and DC SPDs at BMS / PCS DC inputs for hybrid solar-storage and standalone BESS sites.
Why TPKELE
Every DC product designed and tested specifically for photovoltaic system voltages, arc behavior and outdoor service life.
Full 1500V DC range across MCB, SPD and combiner boxes — the modern utility-scale standard for lower BOS cost.
IEC 60947-2 / IEC 61643-31 / IEC 61439, plus CE and RoHS — ready for EU, MENA, SEA and LATAM project tenders.
Custom single-line diagrams, project labelling, OEM logos and private-label catalogs — built for EPCs, distributors and brand owners.
Certified for Global Solar Tenders
Frequently Asked
DC has no zero-crossing, so arcs persist longer at break. AC MCBs cannot safely interrupt PV string DC currents. Use DC MCBs and DC SPDs sized to the system Uoc (1000V or 1500V) for safe protection of strings, combiner boxes and battery DC bus.
1500V DC is now the standard for utility-scale and most commercial PV due to lower BOS cost. 1000V DC remains common in residential and small commercial systems. We supply both ratings across DC MCB, DC SPD and combiner box ranges.
Yes — standard IP65 combiner boxes ship pre-assembled with DC fuses, DC SPDs and DC MCBs per your single-line diagram. We provide CAD drawings and BOM packs for tender submission.
Yes. Send us your project current, voltage and string layout — we will quote a matched bundle of DC MCBs, DC SPDs and combiner boxes with technical datasheets and certificates as one package.
Solar DC Bundle · 72-hour Quotation