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MERSEN FUSE 6,9 URD 0 PV 0250 6,9URD0PV250
High-speed fuse designed for semiconductor protection with 250A rating, dual indicators, and compliance to IEC and UL standards.
£54.77
Why Choose the Mersen NH0UD69V250PV High-Speed Fuse?
The Mersen NH0UD69V250PV is a premium NH Size 0 high-speed semiconductor fuse link engineered to provide exceptional protection for power semiconductor devices in demanding industrial applications. As part of the trusted Mersen Protistor® series, this fuse delivers ultra-fast fault interruption to safeguard IGBTs, thyristors, diodes, GTOs and other sensitive power electronic components used in modern power conversion systems.
Designed for maximum reliability, the NH0UD69V250PV features a robust square-body construction with silver-plated blade contacts and low let-through energy characteristics. Its advanced design helps minimise thermal and mechanical stress during fault conditions, reducing the risk of costly equipment damage and improving overall system reliability.
With a 250 A rated current, 690 V AC IEC rating and 700 V AC UL rating, this fuse is ideal for protecting industrial drives, UPS systems, inverters, converters and other power electronic equipment. The integrated double visual indicator simplifies maintenance by providing quick identification of an operated fuse.
Key Advantages
- Ultra-fast semiconductor protection fuse for sensitive power electronics.
- 250 A rated current for high-power industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Very low let-through energy (I²t) reduces semiconductor damage.
- Integrated double visual fuse indicator for easier maintenance.
- Standard NH Size 0 blade-contact construction for worldwide compatibility.
Key Features
- Mersen Protistor® high-speed fuse.
- NH Size 0 square-body fuse.
- 250 A current rating.
- 690 V AC IEC / 700 V AC UL.
- aR operating class for semiconductor protection.
- Double visual operation indicator.
- Silver-plated blade contacts.
- Current-limiting, ultra-fast fault interruption.
Reliable Protection for Power Electronic Equipment
Modern power electronics require protection devices capable of interrupting fault currents before semiconductor junctions are damaged. The Mersen NH0UD69V250PV is specifically designed for this purpose, delivering extremely rapid operation with excellent current-limiting performance to help maximise equipment availability and minimise downtime.
Its NH Size 0 format enables straightforward installation into compatible NH fuse holders and switch disconnectors commonly found in industrial power distribution and automation systems. The integrated visual indication also reduces maintenance time by allowing engineers to identify operated fuses quickly.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters and converters.
- Uninterruptible power supplies (UPS).
- Motor drives and soft starters.
- Power semiconductor protection.
- Industrial automation and electrical control panels.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Fuse Type | PV (gPV), Semiconductor | |
| Fuse Size | NH0 | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | A320275 | |
| Catalogue No | NH0UD69V250PV | |
| Description | Square Body High-Speed Fuse Protistor® NH Size 0 aR 690VAC IEC 700VAC UL 250A With Double indicator Plain Blades | |
| EAN/UPC Code | 3605340358421 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 250 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH0 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 29900 A²s | |
| Melting I2t | 5580 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 | 66.7 W | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen NH0UD69V250PV used for?
It is a high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other sensitive power electronic devices from damaging overcurrents and short circuits.
What is the current rating of this fuse?
The NH0UD69V250PV has a 250 A rated current.
What voltage is this fuse designed for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
What does the aR fuse class mean?
The aR classification identifies a high-speed fuse specifically designed to provide short-circuit protection for semiconductor devices with extremely fast fault-clearing characteristics.
What does the double indicator provide?
The integrated double visual indicator helps maintenance personnel quickly identify when the fuse has operated, simplifying inspection and replacement.
Trusted by Power Electronics Manufacturers Worldwide
Mersen Protistor® high-speed semiconductor fuses are widely specified by OEMs, panel builders and industrial engineers to protect critical power conversion equipment, helping maximise reliability while reducing costly downtime.
