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MERSEN FUSE 6,9 URD 2PV 0400 6,9URD2PV400
The NH2UD69V400PV fuse offers rapid, reliable protection for critical power semiconductor applications, with a robust square body design and high breaking capacity up to 690VAC (IEC) and 700VAC (UL), rated at 400A. Features double indicators for clear fuse status and plain blades for easy installation.
£82.54
Why Choose the Mersen NH2UD69V400PV Protistor® High-Speed Fuse?
The Mersen NH2UD69V400PV is a Protistor® NH Size 2 high-speed semiconductor fuse designed to protect sensitive power electronic equipment against damaging short-circuit currents. Its rapid operating characteristics help safeguard IGBTs, thyristors, diodes, rectifiers and other semiconductor devices by limiting the peak current and fault energy passed through the circuit.
Rated at 400 A and 690 V AC, the NH2UD69V400PV is suited to demanding industrial installations that require dependable current limitation and a high level of semiconductor protection. Its robust NH square-body format is designed for use with compatible NH fuse bases and switch-disconnectors.
The fuse is particularly suitable for industrial drives, converters, inverters and power-control systems where conventional general-purpose fuses may not operate quickly enough to protect sensitive electronic components. The complete Mersen reference should always be checked against the original fuse and equipment documentation before replacement.
Key Advantages
- High-speed protection for sensitive semiconductor devices.
- 400 A current rating for high-power industrial equipment.
- 690 V AC voltage rating.
- Low let-through energy helps minimise semiconductor damage.
- Current-limiting operation reduces thermal and mechanical stress.
- Standard NH Size 2 square-body format.
Key Features
- Mersen Protistor® semiconductor fuse technology.
- NH Size 2 fuse-link construction.
- 400 A rated current.
- 690 V AC rated voltage.
- High-speed semiconductor protection characteristics.
- Industrial ceramic square-body construction.
- Blade contacts for compatible NH fuse equipment.
- Designed for professional industrial installations.
Engineered for High-Power Semiconductor Protection
Semiconductor devices can be damaged within milliseconds when subjected to excessive current. The Mersen NH2UD69V400PV is designed to interrupt serious electrical faults rapidly, helping reduce the amount of thermal energy transferred to connected electronic components.
Correct fuse selection should take account of the circuit voltage, continuous operating current, prospective fault current and energy-withstand characteristics of the protected semiconductor. The replacement fuse should match the complete manufacturer reference rather than being selected solely by its physical size or current rating.
Typical Applications
- Variable frequency drives and motor-control systems.
- Industrial inverters and power converters.
- Rectifier and thyristor assemblies.
- Uninterruptible power supply systems.
- High-power semiconductor protection circuits.
- Industrial automation and electrical control panels.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | NH2 | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | B320483 | |
| Catalogue No | NH2UD69V400PV | |
| Description | Square Body High-Speed Fuse Protistor® NH Size 2 aR 690VAC IEC 700VAC UL 400A With Double indicator Plain Blades | |
| EAN/UPC Code | 8430399015811 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 400 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH2 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 72.3 kA²s | |
| Melting I2t | 13.5 kA²s | |
| 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 | 52 mm | |
| Product Length | 150 mm | |
| Product Height | 74 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.86 kg | |
| Sell Pack Width | 155 mm | |
| Sell Pack Length | 162 mm | |
| Sell Pack Height | 80 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.62 kg | |
| Power Dissipation at Rated Current Value | 125 W | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen NH2UD69V400PV used for?
The NH2UD69V400PV is a high-speed fuse designed to protect compatible semiconductor devices and industrial power electronic equipment against damaging short-circuit currents.
What is the current rating of this fuse?
The Mersen NH2UD69V400PV has a rated current of 400 A.
What voltage is the NH2UD69V400PV rated for?
The fuse is rated for operation at up to 690 V AC.
What physical fuse size is the NH2UD69V400PV?
It uses an NH Size 2 square-body format and should be installed only in compatible NH2 fuse equipment.
Can a standard NH2 fuse replace this semiconductor fuse?
No direct substitution should be made without approval from the equipment manufacturer. A general-purpose NH fuse may have significantly slower operating characteristics and may not adequately protect sensitive semiconductor devices.
Trusted Semiconductor Protection Technology
Mersen Protistor® high-speed fuses are used by equipment manufacturers, panel builders and electrical engineers to protect critical semiconductor components within industrial drives, converters and power-control systems.
