10×38mm DC Fuse Holder – DIN Rail Mount Fuse Base for PV Protection
Product Overview
Our 1000V DC fuse series is specifically designed for overcurrent protection on the DC side of solar PV systems, with a rated voltage of 1000V DC and a current range covering 1A to 32A in full series. The product consists of a 10×38mm ceramic fuse link and a 35mm DIN rail‑mountable fuse holder, widely used in PV string protection, combiner boxes, and inverter DC inputs.
The fuse link features gPV protection characteristics, complying with IEC 60269‑6 (photovoltaic fuse standard), offering high breaking capacity and reliable DC arc‑quenching performance. The holder adopts a modular snap‑on design, compact, robust, and flame‑retardant, supporting multi‑pole parallel expansion.
Product Features
Fuse Link
| Parameter | Specification |
| Rated Voltage | 1000V DC |
| Rated Current | 1A, 2A, 3A, 4A, 5A, 6A, 8A, 10A, 12A, 15A, 16A, 20A, 25A, 30A, 32A |
| Dimensions | 10 × 38mm (cylindrical) |
| Protection Category | gPV (full‑range protection for photovoltaic systems) |
| Standards | IEC 60269‑1 / IEC 60269‑6 (gPV), UL 2579 |
| Fuse Body Material | Ceramic tube, silver‑plated terminals |
| Breaking Capacity | 20kA |
| Operating Temperature | -40°C to +90°C |
Fuse Holder
| Parameter | Specification |
| Rated Voltage | 1000VDC |
| Rated Current | 32A |
| Compatible Fuse Size | 35mm DIN rail (TH35‑7.5) |
| Protection Degree | IP20 |
| Temperature Range | -40°C to +120°C |
| Terminal Torque | 2.5 – 3.0 N·m |
| Optional | With fuse‑blown LED indicator / without indicator |
| Wire Range | 2.5 – 16mm² (14–6 AWG) |
| Housing Material | Nylon, UL94‑V0 flame retardant |
Key Advantages
1. Engineered for PV DC Systems
DC arcs have no natural zero‑crossing; if not interrupted promptly, fault current will persist and cause severe overheating of conductors. Our fuse is optimised for DC photovoltaic circuits, reliably clearing faults within milliseconds to protect PV modules, cables, and downstream equipment.
2. gPV Full‑Range Protection
Compliant with IEC 60269‑6 gPV characteristics, it provides both overload and short‑circuit protection – especially critical for low fault‑current scenarios typical in PV arrays.
3. Compact & Modular Design
The standard 10×38mm fuse link combined with a DIN‑rail clip‑on holder saves valuable space, allowing dense multi‑pole parallel installation inside combiner boxes.
4. Harsh Environment Resilience
Operating temperature spans -40°C to +90°C (fuse) and -40°C to +120°C (holder), ensuring reliable performance in extreme outdoor PV plant environments.
5. Multiple International Approvals
Certified to TUV, UL, CE and RoHS, meeting the entry requirements of major global markets.
Applications
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PV String Protection – Protects string circuits against reverse overcurrent and short‑circuit faults.
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PV Combiner Boxes – Provides independent overcurrent protection for each string before bus‑bar confluence.
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Inverter DC Input Protection – Safeguards the DC side of inverters from short‑circuit and overload.
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DC Distribution Panels – Line protection for PV DC distribution systems.
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Energy Storage DC Protection – Isolates battery banks against overcurrent and short circuits.
Note: For detailed technical drawings, samples, or volume quotation, please contact our sales team for customised solutions. More Solar Products
