DC Fuse & Holders are protective devices designed to safeguard direct current (DC) circuits from overcurrent and short circuits. The fuse provides rapid fault protection, while the holder ensures safe installation and quick replacement. Widely used in solar PV systems, battery storage, electric vehicles, telecom, and industrial DC applications, they ensure reliable performance, durability, and compliance with safety standards.
Description
DC Fuse & Holders are specialized protection devices designed to interrupt excessive current in direct current (DC) circuits, safeguarding equipment from damage due to overloads or short circuits. The fuse provides rapid fault protection, while the holder ensures safe installation, insulation, and quick replacement. They are widely used in solar PV systems, battery storage, telecom, EVs, and UPS units where DC protection is critical.
Specifications
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Fuse Types: Cylindrical fuse, Cartridge fuse, Blade fuse, PV DC fuse
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Holder Types: Inline fuse holder, DIN-rail mount, Panel mount, Screw-type
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Current Rating: 1A – 1000A
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Voltage Rating: 24V DC to 1500V DC
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Breaking Capacity: High breaking capacity (HBC) for solar PV & EV safety
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Material: Flame-retardant plastic/ceramic with copper or silver fuse element
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Standards: IEC 60269-6, UL, CE
Applications
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Solar PV arrays and combiner boxes
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Battery storage and inverter protection
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Electric vehicles and EV charging stations
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Industrial DC circuits and UPS systems
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Telecom & data center power units
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DC distribution boards
Advantages
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Fast and reliable overcurrent & short-circuit protection
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Fuse holders make replacement safe, simple, and quick
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Compact and robust design for harsh environments
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Wide current and voltage range options
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Essential for renewable energy and EV compliance
Disadvantages
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Fuses must be replaced after blowing (non-resettable)
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Wrong fuse rating may cause nuisance tripping or weak protection
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Spare fuses needed for uninterrupted operation
