Engineered Solar String & DC Overcurrent Protection
Zhejiang TMB Electric Co., Ltd. provides certified high-voltage DC fuses, modular DIN rail fuse bases, and IP67 inline string connectors specifically designed for photovoltaic power plants, combiner boxes, and inverter DC input stages. Compliant with IEC/EN 60269-6 standards, our gPV cylindrical fuses ensure ultra-fast breaking capacity under DC short-circuit conditions where natural zero-crossing is absent.
With an on-site verified production facility by TÜV Rheinland in Liushi, Wenzhou, we provide global solar EPCs, wholesalers, and panel builders with precision-calibrated protection devices, prompt technical support, OEM custom branding, and flexible trial minimum order quantities.
2P Solar DC Fuse Holder 1100V 10×38mm TOPV-32 DIN Rail
1P Solar PV 1100V DC Fuse Base for 10×38mm Cylindrical Links
1P/2P/3P/4P 1100V DC Photovoltaic Fuse Holder TOPV-32X Series
Heavy-Duty 1100V DC Modular Fuse Base with Matching gPV Link
4P 1100V DC Solar Fuse Base with LED Blown Fuse Indicator
1P 1500V Solar DC Fuse Base with LED for 10×85 / 14×85mm Fuses
Distribution Board Thermal & Flame Retardant Aerosol Suppressor
1500V DC Cylindrical gPV Fuse Link 2A to 50A High Breaking Capacity
1P 1500V DC Fuse Base and 10×85mm Link Assembly Set
IP67 Waterproof Solar PV Inline Connector Fuse 1000V/1100V DC 3A-32A
1000V DC 10×38mm Solar PV Fuse Link 3A to 32A gPV Standard
Technical Selection Guide for Solar PV DC Protection
Photovoltaic strings operate on direct current where sustained arcs do not naturally extinguish. Selecting the appropriate fuse requires factoring in string open-circuit voltage at low ambient temperatures and module short-circuit ratings.
| Protection Type | Operating Voltage | Standard Rating | Recommended Application |
|---|---|---|---|
| Residential & C&I Combiner | 1000V / 1100V DC | 10×38 mm (3A - 32A) | String-level combiner boxes and inverter branch input protection |
| Utility-Scale Solar Farms | 1500V DC | 10×85 / 14×85 mm (2A - 50A) | High-voltage centralized array boxes and central inverter DC cabinets |
| Cable-Integrated Protection | 1000V / 1100V DC | Inline IP67 (3A - 32A) | Direct installation in PV module cables without separate combiner enclosures |
| Distribution Enclosure Safety | Cabinet Level | Aerosol Automatic Suppression | Internal fire and thermal runaway prevention in enclosed switchboards |
Need Custom Ratings or Combiner Box Solutions?
Zhejiang TMB Electric Co., Ltd. provides rapid delivery, private labelling, and custom component combinations.