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Product Introduction
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Item |
Professional Specification Data |
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Full Model |
HM18B-32 1000VDC 10×38mm Solar PV DIN Rail Fuse Holder |
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Matching Fuse Dimension |
10×38mm gPV DC fuse link |
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Applicable Fuse Current Range |
2A ~ 32A (30A as mainstream model of this 30A DC Fuse base) |
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Rated DC Working Voltage |
1000V DC |
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Max Matched DC Breaking Capacity |
20kA |
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Pole Type |
Single pole exclusive for solar DC circuits |
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Shell Material |
UL94-V0 high flame retardant PA66 engineering plastic |
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Conductive Structure |
Integrated thick pure copper elastic clip, ultra-low DC contact resistance |
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Matching Protection Category |
gPV (Full-range DC overcurrent protection for PV systems) |
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Executive Standard |
EN/IEC60269-6 |
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Global Certifications |
CE, ISO9001, RoHS |
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Mounting Standard |
TH35 standard DIN rail plug-in installation |
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Applicable Wire Cross-Section |
1.5 ~ 25 mm² |
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Working Environment |
-40℃ ~ +60℃, Pollution Grade 3, Installation Category III, Altitude ≤2000m |
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Core Application |
Mini 1000V DC PV combiner boxes, rooftop distributed solar systems, small off-grid PV, portable energy storage DC cabinets |
Product Advantage
This 10x38mm Solar Fuse Holder achieves outstanding universal compatibility across residential rooftop PV, portable energy storage and small commercial DC combiner cabinets. Unlike oversized 10×65/14×65 fuse bases with limited applicable scenarios, the slim outline of this PV 1000VDC Fuse Holder adapts to all narrow standard enclosures, and it acts as the universal 30A DC Fuse base for diversified low-power solar string branches. With over 40% cabinet space saved, one single 10x38mm Solar Fuse Holder covers most miniature 1000V DC photovoltaic distribution demands, greatly simplifying model stocking for system integrators.
1. Universal DC Arc Suppression Structure Adaptable to Complex Operating Conditions
Equipped with general-purpose thick elastic copper clips, the PV 1000VDC Fuse Holder maintains uniform clamping pressure for all full-range 10×38 gPV fuse links, delivering stable heat dissipation whether used in rooftop PV or mobile energy storage equipment. The universal flame-retardant housing of this 30A DC Fuse base forms a complete arc-isolation barrier for 1000VDC short-circuit faults; its all-scenario optimized conductive design eliminates thermal accumulation issues that frequently occur on single-scenario fuse bases.
2. Cross-Generation Universal Replacement for New & Retrofit PV Projects
Designed with standardized internal cavity size, this 10x38mm Solar Fuse Holder supports full 2A–32A gPV DC fuse compatibility, realizing true universal interchangeability. The unified TH35 DIN rail mounting dimension of the PV 1000VDC Fuse Holder enables direct swap of outdated miniature fuse hardware during PV station upgrades. As a versatile 30A DC Fuse base, it requires no cabinet cutting, drilling or customized processing, unifying component standards for both newly built and renovated small-scale solar projects.
Production Process & Quality Control System
Ceramic Shell Forming The ceramic body is formed through high-temperature sintering to deliver reliable insulation and explosion-proof performance.
Copper Contact Machining Integrally stamped thickened solid copper blades are electroplated with copper-tin alloy for anti-oxidation, effectively reducing contact resistance.
Fuse Element Assembly Precision fuse strips are fitted with high-purity quartz sand (99% silicon content) to achieve rapid arc extinction.
Finished Product Testing Every single unit undergoes individual testing for breaking capacity, temperature rise and overload fusing performance.
Aging Sampling Inspection Long-term operation under rated current is simulated to eliminate potential overheating risks.
Full-process traceable quality control ensures consistent performance of every fuse link.
Packaging, Shipping & After-sales Service
FAQ
Q1: What maximum wire gauge can this 10x38mm Solar Fuse Holder connect?
A1: This PV 1000VDC Fuse Holder supports 1.5~25mm² copper wires, fully matching wiring requirements of small 1000V PV combiner boxes.
Q2: Is this 30A DC Fuse base resistant to damp outdoor cabinet environments?
A2: The shell of PV 1000VDC Fuse Holder adopts anti-condensation structural design, with pollution grade 3 performance, suitable for semi-outdoor sealed photovoltaic cabinets.
Q3: What is the standard service life of this 10x38mm Solar Fuse Holder under normal PV operation?
A3: Under -40℃~+60℃ standard photovoltaic working conditions, the service life of this 30A DC Fuse base can reach 8~10 years, only the fuse link needs replacement after short-circuit blowout.
Q4: Can multiple sets of this PV 1000VDC Fuse Holder be densely arranged in narrow PV cabinets?
A4: Compact narrow body design of the 10x38mm Solar Fuse Holder allows dense side-by-side installation, effectively saving internal cabinet space for mini PV distribution equipment.
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