DNR30-J1M high-current semiconductor fuse link (AC 690V / DC 500V, 80–250A) for industrial power protection. Provides fast short-circuit interruption. Meets IEC 60269-4, CE, CCC, TUV. Ideal for large inverters, converters and EV battery systems.
| Specification and model | Size | In (A) | I2t(A2S) Pre-Arcing | I2t(A2S) Fusing | 0.5In Power dissipation (W) | 0.8In Power dissipation (W) | 1.0In Power dissipation (W) |
| DNR30-J1M-80A | 30 | 80A | 9500 | 41000 | 5.2 | 9.7 | 18 |
| DNR30-J1M-100A | 30 | 100A | 11700 | 50000 | 6.7 | 11.8 | 21.7 |
| DNR30-J1M-125A | 30 | 125A | 13900 | 57000 | 7.4 | 13.3 | 24.5 |
| DNR30-J1M-160A | 30 | 160A | 17000 | 67600 | 8.7 | 15.7 | 29 |
| DNR30-J1M-200A | 30 | 200A | 17800 | 80000 | 10 | 18.6 | 34.3 |
| DNR30-J1M-225A | 30 | 225A | 23000 | 97760 | 12.5 | 22.5 | 41.7 |
| DNR30-J1M-250A | 30 | 250A | 26300 | 112300 | 14.4 | 25.9 | 47.9 |
Heavy-Duty Body: Large cylindrical ceramic fuse with metal end caps and mounting pins for high-current applications.
Fast-Acting Link: Fuse element designed for quick melting on overcurrent, protecting against large fault currents.
Sand-Filled Core: Inert quartz sand extinguishes arcs efficiently to maintain safe interruption at high voltages.
Robust Construction: Durable ceramic cartridge withstands mechanical and thermal stress in power environments.
Dual AC/DC Compatibility: Rated for both AC and DC, suitable for mixed-grid or battery contexts.
Safety Rated: UL94 V-0 flame protection, preventing flame propagation even during heavy faults.
GRL Group
High Current Protection: Engineered for 80–250A circuits, ideal for large converters, heavy motors and EV traction.
Ultra-High Breaking Capacity: Handles severe fault currents (100 kA AC), enhancing safety in large electrical systems.
Wide Use Cases: Fits industrial inverters, HVDC systems, renewable energy storage and mass transit power modules.
Compliance: Meets international standards with CE/CCC/TUV certifications, facilitating global deployment.
Flame-Retardant Safety: V-0 rated body and arc-quenching protect assets and personnel during faults.
Bolt-in Replacement: Standard M10 installation for fast maintenance and compatibility with existing equipment.
Long-Term Reliability: Precise fuse link design minimizes nuisance failures and prolongs service life under heavy loads.
Large motor drives and industrial converters
Grid-tie inverters in solar and wind power plants
UPS systems for data centers and infrastructure
Electric vehicle (EV) powertrain and charging systems
Battery energy storage systems and substation equipment
HVDC systems and traction power supplies
Heavy machinery protection and switchgear units
A fuse link like the DNR30-J1M protects high-power circuits by melting under excessive current, instantly breaking the circuit. This provides critical short-circuit and backup protection in power converters, EV systems and battery packs.
Select a fuse by matching its voltage rating (AC/DC) and current rating to your system. The fuse rating should be above the normal operating current but below the fault level. Verify that its interrupting rating exceeds potential short-circuit current. Consider environmental and mechanical factors (size, temperature), and confirm compliance with relevant standards.
Yes. AC fuses take advantage of AC zero-crossings to help extinguish arcs, whereas DC fuses must clear a continuous current. The DNR30-J1M (AC690V/DC500V) is rated for both, but each system should use a fuse specifically rated for its type of current.
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