High-speed Protistor® fuse designed for robust protection of sensitive power semiconductor devices with double indicator and plain blade terminals, rated 63A at 690VAC IEC and 700VAC UL.
£74.87
The Mersen NH0UD69V63PV (Item Number D320255) is a Protistor® NH Size 0 high-speed semiconductor fuse designed to provide ultra-fast protection for modern power conversion equipment. Featuring an aR operating characteristic, it offers exceptional short-circuit protection for sensitive semiconductor devices including diodes, thyristors, GTOs and IGBTs while delivering outstanding current-limiting performance.
Manufactured using precision die-cut pure silver fuse elements embedded in solidified silica sand inside a robust ceramic body, the NH0UD69V63PV provides low let-through energy (I²t), high breaking capacity and excellent thermal performance. Silver-plated blade contacts minimise resistance, while the integrated double visual indicator allows rapid identification of an operated fuse to simplify maintenance.
Rated at 63 A, with 690 V AC (IEC) and 700 V AC (UL) voltage ratings, this NH Size 0 fuse is designed for installation in DIN 43620 NH fuse holders and fuse switch disconnectors. It is ideally suited for variable speed drives, industrial converters, UPS systems, renewable energy equipment and other demanding semiconductor protection applications.
The Mersen NH0UD69V63PV has been engineered to protect valuable semiconductor devices from destructive short-circuit currents. Its ultra-fast aR characteristic rapidly interrupts fault currents while maintaining extremely low let-through energy, reducing thermal stress and helping maximise equipment reliability.
Designed for worldwide compatibility with DIN 43620 NH modular systems, this fuse installs directly into compatible NH fuse holders and switch disconnectors, making it suitable for OEM equipment, industrial automation systems and maintenance replacement applications.
| Item number | D320255 |
|---|---|
| Catalogue No | NH0UD69V63PV |
| Description | Square Body High-Speed Fuse Protistor® NH Size 0 aR 690VAC IEC 700VAC UL 63A With Double indicator Plain Blades |
| EAN/UPC Code | 8430399015590 |
| Rated voltage AC UL | 700 V |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 63 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | NH0 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 700 A²s |
| Melting I2t | 128 A²s |
| AC Max I.R./Breaking Capacity | I1: 170 kA |
| Indication System | Yes |
| Indication System Type | Double indicator |
| Connection/Terminal Material | Brass |
| Connection/Terminal Type | Plain Blades |
| Product Width | 30 mm |
| Product Length | 125 mm |
| Product Height | 61 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 0.81 kg |
| Sell Pack Width | 92 mm |
| Sell Pack Length | 128 mm |
| Sell Pack Height | 62 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.27 kg |
| Power Dissipation at Rated Current Value | 23.6 W |
| HS Code | 85361050 |
| Country of Manufacture | Tunisia |
It is a Protistor® aR high-speed semiconductor fuse designed to protect sensitive semiconductor devices against short-circuit faults.
The fuse has a rated current of 63 A.
The NH0UD69V63PV is rated at 690 V AC (IEC) and 700 V AC (UL).
The aR operating class provides ultra-fast short-circuit protection specifically for semiconductor devices and should be used alongside suitable overload protection where required.
Typical applications include variable speed drives, UPS systems, converters, industrial inverters, renewable energy systems and other semiconductor power conversion equipment.
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and electrical engineers for delivering dependable protection to critical industrial power electronic equipment.
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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...
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...