GFEVT500‑A‑74E फास्ट-एक्टिंग डीसी फ्यूज 500‑1800A 500VDC | EssFuse

GFEVT500‑A‑74E Series Square‑Body Fast‑Acting Fuse is Size‑3# square‑body fast‑acting हाई स्पीड डीसी फ्यूज specially designed for heavy‑duty new‑energy DC circuits. aR performance class, rated 500‑1800A 500VDC, max 50kA interrupting capacity, minimum breaking current ≥5In, time constant ≤5 ms. Adopts flush‑end contact structure. Features low watt‑loss, superior cycling capability, outstanding anti‑vibration & shock‑resistance ≥20g. RoHS compliant, REACH documentation available upon request. Widely used for large‑capacity battery pack, BESS energy‑storage cabinets and DC relay backup short‑circuit protection.

GFEVT500-A-74E-Series.-500-1800A-500Vdc-fast-acting-fuse

उत्पाद का संक्षिप्त विवरण

Electrical Data @50kA 500VDC

*Note: Models marked asterisk require prior communication with factory for availability.

मुख्य विशेषताएं और लाभ

• aR‑class Size‑3# square‑body fast‑acting DC fuse, low I²t characteristic, up to ten‑times faster opening under high fault‑current for semiconductor backup short‑circuit protection
• 50kA high interrupting capacity @500VDC, time constant ≤5 ms, minimum breaking current ≥5In
• Flush‑end contact construction; higher ampacity within compact dimensional outline, saving cabinet space and reducing overall system cost
• Low watt‑loss design, superior cycling performance, excellent thermal‑shock & wide‑range temperature tolerance
• High mechanical reliability, ≥20g anti‑vibration and shock‑resistance for harsh industrial & energy‑storage cabinet environments
• Supports full‑parameter derating correction for high‑temperature, high‑altitude and forced‑air‑cooling operating‑conditions
• Complies with UL 248.1‑13 & IEC 60269‑1‑4; RoHS compliant, REACH documents available for export‑oriented projects

आवेदन का अवलोकन

GFEVT500‑A‑74E series square‑body high‑speed fuses are purpose‑built for large‑capacity new‑energy DC‑equipment. Mainly deployed for high‑power battery pack protection, BESS energy‑storage cabinets and DC relay backup short‑circuit protection.

महत्वपूर्ण सुझाव: Long‑term continuous operating‑current shall ≤75% of fuse rated‑current. Apply temperature‑altitude‑forced‑air derating‑factors for enclosed‑cabinet installation. Always disconnect DC power before fuse replacement.

स्थापना एवं संचालन संबंधी नोट्स

1. Select proper copper conductor cross‑section following datasheet specification to guarantee stable contact performance.
2. दीर्घकालिक सतत कार्यशील धारा नाममात्र फ्यूज एम्पीयर रेटिंग के 75% से अधिक नहीं हो सकती।.
3. Carry‑out current‑derating when ambient‑temperature＞40℃ or installation‑altitude＞2000 m under closed‑cabinet environment.
4. Derating is also required for forced‑air cooling application, refer to official derating curves for correction‑coefficient.
5. Permitted for vertical, horizontal or inclined mounting; avoid gravity‑vibration impact affecting contact reliability.
6. Discard and replace fuse immediately if mechanical‑damage occurs; avoid live‑load fuse‑replacement unless equipment‑design explicitly permits.

विशिष्ट अनुप्रयोग

• Large‑capacity new‑energy battery‑pack over‑current & short‑circuit backup‑protection
• BESS utility‑scale energy‑storage‑system high‑power DC‑feeder protection
• DC relay and power‑semiconductor‑device backup short‑circuit‑protection
• Heavy‑duty 500VDC new‑energy converter‑inverter internal DC‑side protection
• High‑current industrial energy‑storage power‑distribution assemblies

Pair GFEVT500‑A‑74E series fuse with our हेवी-ड्यूटी सेमीकंडक्टर फ्यूज होल्डर्स के साथ मिलान for complete heavy‑current DC‑protection assembly.

सुरक्षा संबंधी अनुस्मारक

• फ्यूज़ की मरम्मत या बदलने से पहले सभी डीसी-पावर कनेक्शन काट दें।. लाइव लाइन पर 500VDC उच्च वोल्टेज संचालन सख्त रूप से प्रतिबंधित है।.
• Observe 75% rated‑current continuous‑working derating‑rule; extra‑derating required for high‑temperature / high‑altitude enclosed‑cabinet installation.
• अपने सिस्टम के संभावित शॉर्ट-सर्किट करंट से अधिक ब्रेकिंग-कैपेसिटी वाला फ्यूज चुनें।.
• Refer to official datasheet for I‑t curve, temperature‑altitude‑derating‑curves and dimension drawings before bulk‑procurement.
• Mechanically‑damaged fuse‑unit must be discarded and replaced immediately.
• Asterisk‑marked high‑current variants require factory pre‑confirmation before ordering.

अक्सर पूछे जाने वाले प्रश्न

Q: What is GFEVT500‑A‑74E series high‑speed fuse?
A: GFEVT500‑A‑74E is Size‑3# square‑body aR‑class fast‑acting DC fuse, rating 500‑1800A @500VDC, 50kA interrupting‑capacity with flush‑end contact. Designed for large‑capacity battery‑pack and BESS energy‑storage backup‑protection, RoHS compliant, REACH available upon request.

Q: What is the rule for continuous‑current operation?
A: Long‑term operating‑current must be ≤75% of fuse rated‑current. Additional derating shall be applied for high‑temperature, high‑altitude enclosed‑cabinet and forced‑air‑cooling scenarios.

Q: What special notes for asterisk‑marked part‑numbers?
A: Models with asterisk (*) such as 1500A,1600A,1800A need prior technical communication with factory for lead‑time and availability confirmation.

प्रश्न: यह श्रृंखला किन मानकों का अनुपालन करती है?
ए: संदर्भ मानक UL 248.1, UL248.13, IEC 60269‑1, IEC 60269‑4; RoHS अनुरूप, विदेशी निर्यात परियोजनाओं के लिए REACH घोषणा प्रदान की जा सकती है।.

Q: Where is GFEVT500‑A‑74E commonly used?
A: Applied for large‑capacity battery‑pack protection, utility‑scale BESS cabinets, DC‑relay backup‑protection and heavy‑duty 500VDC converter‑inverter DC‑side circuits.

कोटेशन और तकनीकी सहायता के लिए अनुरोध करें

Please provide target part‑number, order‑quantity, system short‑circuit‑current, ambient‑temperature and altitude‑conditions. For asterisk‑marked high‑current models, please confirm availability in advance. Our engineering‑team can deliver full datasheet, bulk‑price quotation and component‑selection‑guidance for large‑scale battery‑energy‑storage DC‑protection‑projects.

GFEVT500‑A‑74E Series High‑Speed Fuse · EssFuse. Confirm datasheet I‑t, derating and dimension specs before mass‑production.