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MERSEN FUSE 6,9 URD 2PV 0315 6,9URD2PV325
High-speed semiconductor fuse with NH Size 2 square body, rated 315A, suitable for AC circuits up to 690VAC (IEC) and 700VAC (UL), featuring double visual indicators and plain blades for reliable circuit protection.
£77.81
Why Choose the Mersen NH2UD69V315PV Protistor® High Speed Fuse?
The Mersen NH2UD69V315PV is a Protistor® high speed semiconductor fuse designed to protect sensitive power electronic components against damaging short-circuit currents. Its rapid operating characteristics and low energy let-through help safeguard IGBTs, thyristors, diodes and rectifier assemblies used in demanding industrial power-conversion equipment.
Manufactured in the standard NH Size 2 format, this square-body fuse is suitable for compatible NH fuse bases, fuse holders and switch-disconnectors. Its robust ceramic construction, silver fuse elements and arc-quenching filler provide dependable current limitation and fault interruption in industrial environments.
With a rated current of 315 A, a rated voltage of 690 V AC under IEC specifications and an aR operating characteristic, the NH2UD69V315PV is well suited to variable-frequency drives, industrial inverters, rectifiers, UPS equipment and other semiconductor-based systems requiring high-speed short-circuit protection.
Key Advantages
- Ultra-fast protection for sensitive semiconductor devices.
- 315 A rated current for demanding industrial applications.
- 690 V AC IEC rating for low-voltage power-conversion systems.
- aR operating class optimised for semiconductor short-circuit protection.
- Low I²t performance helps reduce damaging thermal energy.
- Standard NH Size 2 construction for compatible mounting equipment.
Key Features
- Mersen Protistor® high speed fuse.
- Manufacturer reference: NH2UD69V315PV.
- 315 A rated current.
- 690 V AC IEC voltage rating.
- Up to 700 V AC under applicable UL product-family ratings.
- aR partial-range semiconductor protection.
- NH Size 2 square-body construction.
- Plain NH blade terminals.
- Visual fuse-operation indication.
- High current-limiting performance.
Designed for High-Speed Semiconductor Protection
Power semiconductors can be permanently damaged by high fault currents within a fraction of a second. The Mersen NH2UD69V315PV is engineered to interrupt short-circuit currents rapidly, limiting peak current and reducing the thermal and mechanical stress imposed on protected components.
Its aR classification means that it is a partial-range fuse intended primarily for semiconductor short-circuit protection. Appropriate overload protection should be provided separately where required by the equipment design and applicable electrical standards.
Typical Applications
- Variable-frequency drives and variable-speed drives.
- Industrial inverters and power converters.
- Rectifier assemblies.
- Uninterruptible power supply systems.
- Industrial motor-control equipment.
- Renewable-energy conversion systems.
- Battery energy-storage converters.
- IGBT, thyristor and diode protection circuits.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | NH2 | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | X320479 | |
| Catalogue No | NH2UD69V315PV | |
| Description | Square Body High-Speed Fuse Protistor® NH Size 2 aR 690VAC IEC 700VAC UL 315A With Double indicator Plain Blades | |
| EAN/UPC Code | 8430399015798 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 315 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH2 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 36.9 kA²s | |
| Melting I2t | 6.87 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 | 108 W | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen NH2UD69V315PV used for?
The NH2UD69V315PV provides rapid short-circuit protection for semiconductor devices such as IGBTs, thyristors, diodes and rectifiers used in industrial power electronic equipment.
What is the current rating of this fuse?
The Mersen NH2UD69V315PV has a rated current of 315 A.
What voltage is the NH2UD69V315PV rated for?
It is rated at 690 V AC under IEC specifications. Applicable UL product-family approvals may provide a rating of up to 700 V AC.
What does the aR operating class mean?
The aR classification identifies a partial-range fuse designed for high-speed short-circuit protection of semiconductor devices. It does not normally provide full overload protection.
Can the NH2UD69V315PV be fitted in any NH Size 2 fuse holder?
It should only be installed in an NH Size 2 fuse base, holder or switch-disconnector with compatible dimensions, voltage rating, current capacity and high-speed fuse requirements.
Trusted Protection for Industrial Power Electronics
Mersen Protistor® high speed fuses are widely specified by equipment manufacturers, panel builders and industrial engineers for protecting valuable semiconductor and power-conversion equipment.
