High-speed NH 00 fuse with aR characteristic for rapid fault interruption, 40A rating, 1000VAC IEC compliant, featuring integrated striker indication and DIN 80 blade terminals.
£144.86
The Mersen G076412 is a Protistor® NH Size 00 high-speed semiconductor fuse designed to provide ultra-fast protection for sensitive power electronic equipment. Catalogued as DN00UD10C40L, this aR class fuse is rated at 40 A and 1000 V AC (IEC), making it ideal for protecting IGBTs, thyristors, diodes and rectifiers from damaging short-circuit currents.
Engineered for demanding industrial applications, the G076412 features an NH Size 00 square-body construction with DIN 80 silver-plated blade terminals and an integrated striker indicator for visual and remote fuse status indication. Pure silver fuse elements embedded in solidified sand provide exceptional current-limiting performance and low I²t values, helping minimise damage to valuable semiconductor devices.
With a 120 kA breaking capacity, this Protistor® fuse is widely used in industrial motor drives, power converters, UPS systems, renewable energy equipment and other semiconductor-based applications where rapid fault clearance is essential.
Modern semiconductor devices require extremely rapid fault interruption to avoid catastrophic damage. The Mersen G076412 is engineered to interrupt high fault currents within milliseconds, limiting thermal and electrical stress on expensive power electronic components while reducing equipment downtime.
Its integrated striker can operate compatible microswitches for remote monitoring, making it particularly suitable for industrial automation systems where fast fault diagnosis improves maintenance efficiency.
| Item number | G076412 |
|---|---|
| Catalogue No | DN00UD10C40L |
| Description | Square Body High-Speed Fuse Protistor® Size NH 00 aR 1000VAC IEC 40A With Striker DIN 80 Blades |
| EAN/UPC Code | 3605340017250 |
| Rated voltage AC IEC | 1000 V |
| Ampere Rating | 40 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | NH00 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 320 A²s |
| Melting I2t | 45 A²s |
| AC Max I.R./Breaking Capacity | I1: 120 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | DIN 80 Blades |
| Product Width | 30 mm |
| Product Length | 100 mm |
| Product Height | 38.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 0.66 kg |
| Sell Pack Width | 100 mm |
| Sell Pack Length | 110 mm |
| Sell Pack Height | 80 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.22 kg |
| Power Dissipation at Rated Current Value | 18.5 W |
| HS Code | 85361050 |
| Country of Manufacture | Tunisia |
The G076412 is a high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other power semiconductor devices against short-circuit faults.
The fuse has a rated current of 40 A.
It is rated for 1000 V AC (IEC).
The integrated striker provides visual indication when the fuse operates and can actuate a compatible microswitch for remote monitoring.
It is commonly used in industrial drives, converters, UPS systems, renewable energy equipment and other semiconductor protection applications.
Mersen Protistor® semiconductor fuses are trusted worldwide by OEM manufacturers, panel builders and electrical engineers for dependable protection of critical power electronic systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...