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MERSEN FUSE 5 URB 000 D08 V 350 5URB000D08V350
High-speed fuse with 350A rating, 500VAC IEC compliance, visual indicator, and DIN 80 blade terminals for semiconductor protection.
£43.45
Why Choose the Mersen W330115 Protistor® High Speed Fuse?
The Mersen W330115 (Catalogue No. DN000UB50V350V) is a Protistor® high speed square body semiconductor fuse engineered to provide ultra-fast protection for sensitive power electronic devices. Designed specifically for safeguarding IGBTs, thyristors, diodes and rectifier assemblies, it delivers rapid fault interruption with low energy let-through to minimise semiconductor damage.
Manufactured in the compact NH Size 000 format with DIN 80 blade terminals, the W330115 features a visual blown fuse indicator for quick maintenance checks. Silver-plated contacts, pure silver fuse elements and solidified silica sand construction provide excellent current limitation and dependable performance in demanding industrial applications.
With a 350 A current rating, 500 V AC IEC / UL rating and aR operating characteristic, the W330115 is ideal for variable frequency drives, UPS systems, industrial inverters, power converters and other semiconductor-based equipment requiring reliable short-circuit protection.
Key Advantages
- Ultra-fast protection for sensitive semiconductor devices.
- 350 A rated current for demanding industrial applications.
- 500 V AC IEC / UL voltage rating.
- aR operating class for semiconductor short-circuit protection.
- Visual blown fuse indicator for simplified maintenance.
- Compact NH Size 000 design for modern power conversion equipment.
Key Features
- Mersen Protistor® high speed semiconductor fuse.
- Manufacturer part number: W330115.
- Catalogue number: DN000UB50V350V.
- NH Size 000 square body construction.
- 350 A current rating.
- 500 V AC IEC / UL rating.
- aR operating characteristic.
- DIN 80 blade terminals.
- Visual operation indicator.
- Silver-plated contacts and pure silver fuse elements.
Designed for High-Speed Semiconductor Protection
The Mersen W330115 is specifically engineered for protecting power semiconductors against destructive short-circuit currents. Its low I²t characteristics reduce the thermal and mechanical stress imposed on expensive electronic components, helping improve equipment reliability and minimise costly downtime.
The fuse's aR characteristic provides partial-range semiconductor protection and should be used alongside suitable overload protection where required by the equipment design.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- Power converters.
- Rectifier equipment.
- UPS systems.
- Motor drive systems.
- Renewable energy power conversion equipment.
- Semiconductor protection circuits.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Fuse Type | D / D0 (Neozed/Diazed), Semiconductor | |
| Fuse Size | NH000 | |
| Fuse Class | aR | |
| Voltage | 500 V | |
| Item number | W330115 | |
| Catalogue No | DN000UB50V350V | |
| Description | Square Body High-Speed Fuse Protistor® Size NH 000 aR 500VAC IEC 350A Visual Indicator DIN 80 Blades | |
| EAN/UPC Code | 3605340361995 | |
| Rated voltage AC UL | 500 V | |
| Rated voltage DC UL | 320 V | |
| Rated voltage AC IEC | 500 V | |
| Ampere Rating | 350 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH000 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 110000 A²s | |
| Melting I2t | 22400 A²s | |
| AC Max I.R./Breaking Capacity | I1: 120 kA | |
| Indication System | Yes | |
| Indication System Type | Visual Indicator | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | DIN 80 Blades | |
| Product Width | 20 mm | |
| Product Length | 100 mm | |
| Product Height | 38.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.3759 kg | |
| Sell Pack Width | 110 mm | |
| Sell Pack Length | 130 mm | |
| Sell Pack Height | 80 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.1253 kg | |
| Power Dissipation at Rated Current Value | 58 W | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen W330115 used for?
The W330115 is designed to provide ultra-fast short-circuit protection for semiconductor devices including IGBTs, thyristors, diodes and rectifier assemblies.
What is the current rating of the W330115?
The fuse has a rated current of 350 A.
What voltage is the W330115 rated for?
It is rated at 500 V AC under both IEC and UL standards, with a UL DC rating of 320 V DC.
Does the W330115 include a blown fuse indicator?
Yes. The fuse is fitted with a visual operation indicator to simplify inspection and maintenance.
What does the aR operating class mean?
The aR operating class provides partial-range protection for semiconductor devices against short-circuit faults and is intended to be used with separate overload protection where required.
Trusted Protection for Power Electronics
Mersen Protistor® high speed fuses are trusted worldwide by equipment manufacturers, panel builders and maintenance engineers to protect valuable semiconductor devices in demanding industrial power conversion applications.
