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MERSEN FUSE 6,9 URD 0 PV 0050 6,9URD0PV050
High-speed aR characteristic fuse with double indicator and plain blades for semiconductor protection up to 690VAC IEC and 700VAC UL at 50A.
£44.53
Why Choose the Mersen NH0UD69V50PV Protistor® High-Speed Fuse?
The Mersen NH0UD69V50PV (Item No. Z320251) is a Protistor® NH Size 0 high-speed semiconductor protection fuse engineered to provide ultra-fast short-circuit protection for sensitive power electronic devices. Rated at 50 A and 690 V AC (IEC) / 700 V AC (UL), it is specifically designed to protect IGBTs, thyristors, GTOs, power diodes and rectifier assemblies used in industrial power conversion equipment.
Manufactured using precision die-cut pure silver fuse elements embedded in solidified sand, the NH0UD69V50PV delivers exceptionally low let-through energy and outstanding current-limiting performance. Silver-plated contact blades, non-magnetic hardware and an integrated double indicator provide dependable long-term operation while simplifying maintenance.
Designed to DIN NH standards for worldwide compatibility with NH modular fuse systems, this Protistor® fuse offers reliable protection for variable speed drives, UPS systems, industrial converters, renewable energy inverters and other demanding semiconductor applications.
Key Advantages
- High-speed aR semiconductor protection fuse.
- 50 A rated current for industrial power electronics.
- 690 V AC IEC / 700 V AC UL rated voltage.
- Protects IGBTs, thyristors, GTOs and power diodes.
- 170 kA AC breaking capacity.
- Integrated double visual indicator for simplified maintenance.
Key Features
- Mersen Protistor® NH Size 0 semiconductor fuse.
- 50 A rated current.
- 690 V AC IEC / 700 V AC UL operation.
- aR ultra-fast operating characteristic.
- NH Size 0 square body construction.
- Double visual blown fuse indicator.
- Silver-plated blade contacts.
- Designed for industrial semiconductor protection.
Reliable Protection for Industrial Power Electronics
The Mersen NH0UD69V50PV is designed to interrupt damaging fault currents within milliseconds, limiting the electrical and thermal energy transferred to sensitive semiconductor devices. This helps minimise equipment damage, extend component life and improve overall system reliability.
Protistor® semiconductor fuses are widely specified by OEM manufacturers and electrical engineers for protecting industrial drives, converters, UPS systems, renewable energy equipment and other critical power electronic installations where rapid fault clearance is essential.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation equipment.
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 | Z320251 | |
| Catalogue No | NH0UD69V50PV | |
| Description | Square Body High-Speed Fuse Protistor® NH Size 0 aR 690VAC IEC 700VAC UL 50A With Double indicator Plain Blades | |
| EAN/UPC Code | 3605340358377 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 50 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH0 | |
| Mounting | Clip | |
| Clearing I2t At Rated Voltage | 470 A²s | |
| Melting I2t | 87 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 | 20.8 W | |
| HS Code | 85361050 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen NH0UD69V50PV used for?
It provides ultra-fast short-circuit protection for semiconductor devices including IGBTs, thyristors, GTOs and power diodes used in industrial power electronic equipment.
What is the current rating of this fuse?
The Mersen NH0UD69V50PV has a rated current of 50 A.
What voltage is the NH0UD69V50PV designed for?
It is rated for 690 V AC (IEC) and 700 V AC (UL) applications.
What does the aR operating characteristic mean?
The aR characteristic provides ultra-fast short-circuit protection for semiconductor devices and should always be used alongside suitable overload protection.
Does the NH0UD69V50PV include a blown fuse indicator?
Yes. It features a double visual indicator that allows quick identification of a blown fuse and supports simplified maintenance.
Trusted by Power Electronics Professionals
Mersen Protistor® semiconductor fuses are trusted worldwide by OEM manufacturers, panel builders and electrical engineers to provide dependable protection for critical industrial power electronic systems.
