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MERSEN FUSE 6,9 URD 2PV 0550 6,9URD2PV550
High-speed fuse designed for semiconductor protection with 550A rating, NH size 2, double indicator blades, certified to IEC and UL standards for voltages up to 700VAC.
£90.64
Why Choose the Mersen NH2UD69V550PV High-Speed Fuse?
The Mersen NH2UD69V550PV is a high-performance NH size 2 high-speed fuse link designed to protect power semiconductor devices and industrial electrical equipment against damaging short-circuit currents. Manufactured by Mersen, a specialist in electrical protection products, this fuse provides rapid fault interruption for demanding power conversion, automation and drive applications.
Its ultra-fast operating characteristics help limit peak current and let-through energy during a fault, reducing the risk of damage to sensitive semiconductor components. The NH blade-contact format enables secure installation in compatible fuse bases, switch disconnectors and industrial distribution assemblies.
With a rated current of 550 A and a rated voltage of up to 690 V AC, the NH2UD69V550PV is suitable for high-current circuits used in variable speed drives, rectifiers, inverters, uninterruptible power supplies and other power electronic systems. Its NH2 body size provides a robust and standardised solution for industrial control panels and electrical cabinets.
Key Advantages
- High-speed semiconductor protection fuse for demanding industrial circuits.
- 550 A rated current for high-power electrical equipment.
- 690 V AC voltage rating suitable for industrial power systems.
- Fast fault interruption helps protect sensitive semiconductor components.
- Low let-through energy reduces thermal and mechanical stress during faults.
- Standard NH size 2 blade-contact design for secure installation.
Key Features
- Mersen high-speed fuse link.
- 550 A rated current.
- 690 V AC rated voltage.
- NH size 2 body format.
- Ultra-fast operating characteristics for semiconductor protection.
- High current-limiting performance during short-circuit faults.
- NH blade contacts for compatible fuse bases and switchgear.
- Designed for industrial power conversion and motor-control equipment.
Reliable Protection for Power Semiconductor Circuits
High-speed fuses such as the Mersen NH2UD69V550PV are engineered to respond significantly faster than conventional industrial fuse links. During a short-circuit event, the fuse rapidly interrupts the current and limits the amount of electrical energy passed to downstream components.
This operating behaviour is particularly important in circuits containing diodes, thyristors, insulated-gate bipolar transistors and other sensitive power semiconductor devices. By limiting fault energy, the fuse helps reduce equipment damage, production downtime and the cost of replacing critical electronic components.
Typical Applications
- Variable frequency drives and industrial motor controllers.
- Power inverters and rectifier systems.
- Uninterruptible power supplies and battery systems.
- Industrial power converters.
- Semiconductor-controlled heating equipment.
- Automation panels and electrical distribution assemblies.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | NH2 | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | G320488 | |
| Catalogue No | NH2UD69V550PV | |
| Description | Square Body High-Speed Fuse Protistor® NH Size 2 aR 690VAC IEC 700VAC UL 550A With Double indicator Plain Blades | |
| EAN/UPC Code | 8430399015842 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 550 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH2 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 206 kA²s | |
| Melting I2t | 38.4 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 | 155 W | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen NH2UD69V550PV used for?
This fuse is used to provide high-speed short-circuit protection for power semiconductors and industrial power electronic equipment, including drives, inverters and rectifiers.
What is the rated current of this fuse?
The Mersen NH2UD69V550PV has a rated current of 550 A.
What voltage is the NH2UD69V550PV rated for?
The fuse is rated for operation at up to 690 V AC.
What fuse size is the NH2UD69V550PV?
This model uses the standard NH size 2 format with blade contacts for installation in a compatible NH fuse base or switch disconnector.
Can this fuse protect variable frequency drives?
Yes. Its high-speed current-limiting characteristics make it suitable for protecting the sensitive power semiconductor components used in variable frequency drives and other power conversion equipment.
Trusted Industrial Circuit Protection
Mersen high-speed fuse links are used by electrical engineers, panel builders and industrial equipment manufacturers to provide dependable protection for sensitive semiconductor devices and high-power electrical systems.
