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ໝວດຜະລິດຕະພັນຟິວ AC ແລະ DC ຂອງ JUTRION

ຄຸນສົມບັດທີ່ເຊື່ອຖືໄດ້ຂອງຟິວ JUTRION AC & DC

ການປຽບທຽບຟິວ JUTRION AC & DC

ພາຣາມິເຕີ	ຟິວ AC	ຟິວ DC
ປະເພດກະແສ	ກະແສສະຫຼັບ	ກະແສກົງ
ແຮງດັນທີ່ກຳນົດທົ່ວໄປ	250V / 500V / 690V AC	1000V / 1500V DC
ການນຳໃຊ້ທົ່ວໄປ	ການຈ່າຍໄຟແຮງດັນຕໍ່າ, ເຄື່ອງຈັກ ແລະລະບົບຄວບຄຸມອຸດສາຫະກຳ	ໂຊລາ PV, ການເກັບພະລັງງານ ແລະລະບົບ DC ອື່ນໆ
ຄວາມຕ້ອງການດ້ານການດັບອາກໄຟ	ຕໍ່າກວ່າ DC ເນື່ອງຈາກມີຈຸດຕັດສູນກະແສຕາມທຳມະຊາດ	ສູງກວ່າເນື່ອງຈາກກະແສໄຟຟ້າກົງຕໍ່ເນື່ອງ
ໜ້າທີ່ປ້ອງກັນທົ່ວໄປ	ການປ້ອງກັນໂຫຼດເກີນ ແລະ ວົງຈອນສັ້ນ	ການປ້ອງກັນກະແສເກີນ ແລະ ວົງຈອນສັ້ນ
ມາດຕະຖານອ້າງອີງ	ຊຸດ IEC 60269	IEC 60269-6 ສຳລັບການນຳໃຊ້ໂຟໂຕໂວນຕາອິກ

ຟິວລິ້ງ ແລະ ທີ່ຍຶດຟິວ

ຟິວລິ້ງແມ່ນອົງປະກອບປ້ອງກັນທີ່ປ່ຽນແທນໄດ້ ເຊິ່ງຕັດກະແສເກີນ ແລະ ຄວາມຜິດພາດວົງຈອນສັ້ນ, ສ່ວນທີ່ຍຶດຟິວໃຫ້ການເຊື່ອມຕໍ່ໄຟຟ້າທີ່ປອດໄພ, ການສນວນ ແລະ ການຕິດຕັ້ງທີ່ສະດວກ. ຮ່ວມກັນ, ພວກມັນປະກອບເປັນລະບົບປ້ອງກັນຟິວທີ່ຄົບຊຸດ ສຳລັບບອດຈ່າຍໄຟ, ແຜງຄວບຄຸມ, ກ່ອງລວມສາຍໂຊລາ ແລະ ອຸປະກອນໄຟຟ້າອື່ນໆ.

ອົງປະກອບ	ໜ້າທີ່ຫຼັກ	How It Works	Typical Role
Fuse Link	Provides overcurrent and short-circuit protection	The internal fuse element melts when the current exceeds the specified limit, interrupting the circuit	Protects cables, equipment and electrical systems from fault current
Fuse Holder	Supports, connects and insulates the fuse link	Provides secure electrical contact, mechanical mounting and safe replacement of the fuse link	Ensures reliable installation inside distribution boards, control panels and combiner boxes

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What is the difference between an AC fuse and a DC fuse?

AC and DC current behave differently when interrupted. AC voltage naturally drops to zero 100 or 120 times per second, making the resulting electrical arc much easier to extinguish. Continuous DC current does not have a natural zero-crossing, meaning the arc is highly persistent and dangerous. Therefore, DC fuses are physically longer and feature specialized internal structures and sand-filling to forcefully cool and extinguish high-voltage DC arcs. Never use an AC fuse in a pure DC application.

How to Select the Right JUTRION Fuse

Step 1. Voltage: Ensure the fuse voltage rating is higher than your system voltage. Choose AC up to 690V for industrial grids, or DC 1000V or 1500V for solar PV systems.

Step 2. Application Category: Match your load type. Choose gG for general cables and distribution, aM for industrial motor startup protection, or gPV for solar string protection.

Step 3. Current: Calculate your continuous current and add a safety margin. For general AC circuits, use 1.25 times the load current. For solar DC circuits, use 1.56 times the short circuit current to prevent heat-induced tripping.

Step 4. Mounting Style: Choose Cylindrical 10x38mm for modular DIN-rail holders, Blade NH00-NH3 for heavy-duty switch disconnectors, or Bolted Tag BS88 for high-vibration busbar connections.

Key Differences Between AC and DC Fuses

AC Fuses: Designed for alternating current where the voltage naturally drops to zero regularly, making the arc easy to extinguish. They are used for standard factory power and motors.

DC Fuses: Designed for continuous direct current where the arc does not stop naturally and is highly dangerous. They are physically longer and packed with special sand to forcefully extinguish high-voltage solar arcs.