Dimensions (mm)

Bolted xxxBN-59E

Din xxxUN-59E

GFEVT1000‑N‑59E Series Square‑Body Fast‑Acting aR DC Fuse 1000VDC 100‑800A

GFEVT1000‑N‑59E Series Square‑Body Fast‑Acting aR DC Fuse 1000VDC 100‑800A is Size 2# square‑body bolt‑mount aR‑class high‑speed DC fuse for new‑energy DC‑system applications. Rated voltage 1000VDC, max breaking capacity 50kA@1000VDC (Time Constant ≤5ms), minimum breaking current ≥3In. Two mechanical terminal versions without blow indicator: BN‑type flat bolted horizontal connection; UN‑type DIN hook‑fork vertical connection. It delivers superior DC performance, low watt losses, outstanding anti‑arc capability and wide ambient‑temperature adaptability, excellent mechanical shock and vibration resistance. Performance references UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS compliant; REACH document is available upon request. Suitable for energy‑storage cabinets, maintenance safety disconnect switches, lithium‑ion battery‑packs and DC relay backup short‑circuit protection.

GFEVT1000-N-59E-100A-800A-1000V-fast-acting-fuse

Key Features

• Model Series: GFEVT1000‑N‑59E Square‑Body Fast‑Acting aR DC Fuse
• Rated Voltage: 1000 VDC
• Current Range: 100A‑800A; Operation Class: aR (semiconductor short‑circuit protection)
• Max Breaking Capacity: 50kA @1000VDC (Time Constant ≤5ms)
• Minimum Breaking Current: ≥3 In
• Two terminal styles without blow indicator: BN‑flat bolted horizontal; UN‑DIN hook‑fork vertical
• Outstanding cycling capability & low watt‑loss characteristic
• Up to ten‑times faster interruption under high fault‑current condition, excellent anti‑voltaic impingement
• Size 2# square‑body outline, optimized for compact cabinet layout
• High shock‑vibration resistance, fit for new‑energy & industrial cabinet environments
• Compliance: Referenced to UL‑248‑1/UL‑248‑13, IEC 60269‑1/IEC 60269‑4, RoHS; REACH on request

General Technical Specifications

Part Number List & Electrical Parameters(Test@1000VDC,50kA,Time‑Constant≤5ms)

Application Scenarios

GFEVT1000‑N‑59E Series Square‑Body Fast‑Acting aR DC Fuse 1000VDC 100‑800A is developed for 1000VDC high‑voltage DC new‑energy projects. It is widely used for energy‑storage power‑station cabinets, maintenance safety disconnect switches, lithium‑ion battery‑pack and DC relay backup short‑circuit protection. aR‑class fast‑acting characteristic provides reliable fault‑current protection for power semiconductors and DC‑side power components.

Installation & Operating Notes

• Size 2# square‑body; select BN‑flat bolted or UN‑DIN hook‑fork terminal according to cabinet layout. Apply specified bolt torque value to avoid poor contact and over‑heating risk. This series has NO built‑in blow indicator for fuse burnout status.
• Recommended continuous working current ≤75% of fuse rated‑current. Apply temperature‑derating factor Kt when ambient temperature exceeds +40℃.
• Altitude ≤2000m: no‑derating; closed‑box installation 2000‑4500m: derate 2%‑5% per 1000m elevation. Re‑check insulation clearance per GB/T16935.1 for high‑altitude deployment.
• Permits vertical, horizontal, inclined mounting. Avoid gravity‑vibration negative influence over electrical contact performance.
• Forced‑air cooling improves heat dissipation and allowable operating current, refer to Kv correction coefficient.
• Never replace fuse under live DC load unless equipped with certified load‑break switchgear.
• Replace fuse immediately if shell crack, deformation or mechanical damage occurs.
• Additional reliability validation test required for extremely high‑vibration industrial working conditions.
• Select matched copper conductor cross‑section for terminals to control temperature‑rise performance.
• Ordering reminder: specify suffix BN (flat bolted) or UN (DIN hook‑fork) on purchase order; Pending‑marked items need factory pre‑verification for RoHS & REACH status.

Packing & Storage Requirements

Standard original‑box bulk package. Store in clean, dust‑free warehouse. Storage temperature:‑40℃~+120℃; humidity limit: RH≤70%@40℃, RH≤80%@30℃, RH≤90%@20℃. Sample testing support, OEM customization, stable mass‑volume supply for energy‑storage and new‑energy equipment manufacturers. REACH declaration available upon customer request.

FAQ

Q: What are ratings for GFEVT1000‑N‑59E Series Square‑Body Fast‑Acting aR DC Fuse?
A: Rated 1000VDC, current range 100‑800A, aR fast‑acting class, max breaking capacity 50kA@1000VDC(Time Constant ≤5ms), minimum breaking current ≥3In, Size2# square‑body, without blow indicator.

Q: What is difference between BN‑type and UN‑type terminals?
A: BN‑type: flat bolted horizontal connection; UN‑type: DIN hook‑fork vertical terminal. No blow indicator for both versions, electrical parameters are fully identical, please specify BN / UN suffix on purchase order.

Q: Does GFEVT1000‑N‑59E have blow indicator?
A: No, N‑series version has no blow‑out indicator function.

Q: What body size for GFEVT1000‑N‑59E?
A: Size 2# square‑body construction, two terminal options BN / UN.

Q: What standards does GFEVT1000‑N‑59E comply with?
A: Performance referenced to UL‑248‑1/UL‑248‑13, IEC60269‑1/IEC 60269‑4, RoHS compliant; REACH document available on request; Pending‑marked models need factory confirmation.

Q: Main application scenarios for GFEVT1000‑N‑59E?
A: Energy‑storage cabinets, maintenance safety disconnect switches, lithium‑ion battery‑pack and DC relay backup short‑circuit protection.