Mersen H076482 Limitor aSJB/D high-voltage motor protection fuse rated at 12 kV AC and 100 A with a 20 N striker.
£740.50
The Mersen H076482, catalogue number 45ASB120V100P-3, is a high-voltage DIN back-up fuse-link specifically engineered for the protection of medium-voltage motors against damaging short-circuit currents. As part of the Mersen Limitor® aSJB/D series, it is designed to withstand the repeated peak currents associated with motor starting while providing dependable fault protection.
Rated at 12 kV AC and 100 A, this current-limiting fuse rapidly interrupts high fault currents, helping to reduce thermal and mechanical stress on motors, cables, switchgear and associated equipment. Its proven construction ensures reliable performance in demanding industrial and utility environments.
Manufactured with a durable melamine fibreglass body, silver-plated fuse elements and silver-plated brass end caps, the H076482 incorporates a 20 N striker for operating compatible switchgear or providing fuse indication. The fuse measures approximately 50.8 mm in diameter and 442 mm in length.
The Mersen H076482 has been developed specifically for high-voltage motor circuits where frequent starting currents occur. Unlike standard transformer fuses, the Limitor® aSJB/D range is designed to withstand repeated motor inrush currents while still providing rapid interruption of damaging short-circuit faults.
Its current-limiting characteristics help reduce damage to motors and switchgear while the integrated striker allows compatible switching devices to disconnect the circuit safely after fuse operation.
| Voltage | 120 V |
|---|---|
| Manufacturer | Mersen |
| Series | Limitor® aSJB/D |
| Item number | H076482 |
| Catalogue number | 45ASB120V100P-3 |
| Product type | High-voltage motor protection back-up fuse-link |
| Primary application | Medium-voltage motor protection |
| Rated voltage | 12 kV AC |
| Rated current | 100 A |
| Current type | AC |
| Fuse diameter | 50.8 mm |
| Fuse length | 442 mm |
| Minimum breaking current | 560 A |
| Operating I²t at rated voltage | 85 kA²s |
| Power dissipation | 45 W at 0.7 × In |
| Striker force | 20 N |
| Fuse element material | Silver-plated copper |
| End-cap material | Silver-plated brass |
| Body material | Melamine fibreglass |
| Applicable standard | IEC 60644 |
| Weight | Approximately 2.2 kg |
| EAN / UPC | 3605340017977 |
| RoHS compliant | Yes |
The Mersen H076482 is a high-voltage back-up fuse designed specifically to protect medium-voltage motors against short-circuit faults.
This fuse is rated at 12 kV AC and 100 A.
The corresponding Mersen catalogue number is 45ASB120V100P-3.
Yes. The H076482 incorporates a 20 N striker for operation of compatible switchgear or fuse indication.
The fuse measures approximately 50.8 mm in diameter and 442 mm in length.
Mersen Limitor® aSJB/D motor protection fuse-links are trusted worldwide for protecting medium-voltage motors, delivering dependable fault interruption while withstanding repeated motor starting currents.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...