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MERSEN FUSE 6,9 URD 3 PV 0700 6,9URD3PV700
The NH3UD69V700PV high-speed Protistor® fuse delivers robust overcurrent protection for critical power electronics operating up to 700A at 690VAC (IEC) or 700VAC (UL). Its NH Size 3 square body and aR characteristic ensure precise, rapid fault interruption for semiconductor and photovoltaic installations.
£106.93
Why Choose the Mersen NH3UD69V700PV High-Speed Semiconductor Fuse?
The Mersen NH3UD69V700PV is a premium Protistor® NH Size 3 high-speed semiconductor fuse engineered to provide rapid and dependable protection for modern power semiconductor devices. Manufactured by Mersen, this fuse is specifically designed to protect IGBTs, thyristors, GTOs and power diodes used in industrial power conversion systems.
As part of the trusted Mersen Protistor® NH Size 3 aR series, the NH3UD69V700PV combines ultra-fast fault interruption with low energy let-through to minimise damage during short-circuit events. Manufactured using pure silver fuse elements embedded in solidified sand with silver-plated contact surfaces, it delivers exceptional reliability and long service life in demanding industrial environments.
With a rated current of 700 A and a 690 V AC IEC / 700 V AC UL voltage rating, the NH3UD69V700PV is ideal for protecting variable frequency drives, UPS systems, inverters, converters and renewable energy equipment requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor fuse for protecting sensitive power electronics.
- 700 A current rating for high-power industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- 170 kA breaking capacity for outstanding fault interruption.
- Double visual indicator for easier maintenance.
- Low I²t characteristics help protect valuable semiconductor devices.
Key Features
- Mersen Protistor® NH Size 3 series.
- 700 A rated current.
- 690 V AC IEC / 700 V AC UL.
- aR ultra-fast operating characteristic.
- NH Size 3 square body construction.
- Plain blade terminals.
- Double visual indicator.
- Pure silver fuse elements with silver-plated contacts.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are specifically engineered to interrupt short-circuit currents before excessive thermal energy can damage sensitive semiconductor devices. Their low I²t characteristics reduce electrical stress, helping extend equipment life and minimise costly downtime.
The Mersen Protistor® NH range is widely specified by OEMs and industrial engineers for protecting variable speed drives, converters, UPS systems, renewable energy equipment and industrial motor control systems where reliable semiconductor protection is essential.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and inverters.
- UPS systems.
- Renewable energy power conversion equipment.
- Industrial automation and electrical distribution panels.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Fuse Type | PV (gPV), Semiconductor | |
| Fuse Size | NH3 | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | S320590 | |
| Catalogue No | NH3UD69V700PV | |
| Description | Square Body High-Speed Fuse Protistor® NH Size 3 aR 690VAC IEC 700VAC UL 700A With Double indicator Plain Blades | |
| EAN/UPC Code | 3605340358704 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 700 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH3 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 332 kA²s | |
| Melting I2t | 61.7 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 | 72 mm | |
| Product Length | 150 mm | |
| Product Height | 89 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 1.05 kg | |
| Sell Pack Width | 165 mm | |
| Sell Pack Length | 185 mm | |
| Sell Pack Height | 100 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 1.05 kg | |
| Power Dissipation at Rated Current Value | 200 W | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen NH3UD69V700PV used for?
It provides ultra-fast protection for semiconductor devices including IGBTs, thyristors, GTOs and power diodes used in industrial power electronic equipment.
What is the current rating of the NH3UD69V700PV?
The fuse has a 700 A rated current.
What voltage is this fuse rated for?
The NH3UD69V700PV is rated for 690 V AC (IEC) and 700 V AC (UL).
Does this fuse include a visual indicator?
Yes. It features a double visual indicator for quick fuse status identification and simplified maintenance.
Where is the NH3UD69V700PV typically installed?
It is commonly installed in industrial drives, converters, UPS systems, renewable energy equipment and other semiconductor-based power conversion systems.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide for delivering rapid fault protection, low energy let-through and dependable performance in demanding industrial power electronic applications.
