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MERSEN FUSE 6,9 URB 000 D08L 250 6,9URB000D08L250
High-speed Protistor® fuse for semiconductor protection rated at 250A, 690VAC IEC with striker indication and DIN 80 blade terminals.
£44.13
Why Choose the Mersen Z330187 Protistor® High-Speed Fuse?
The Mersen Z330187 (DN000UB69V250L) is a high-performance square body semiconductor protection fuse from the trusted Protistor® series, engineered to provide ultra-fast protection for sensitive power electronic components. Designed for demanding industrial applications, this aR characteristic fuse delivers exceptional protection for diodes, thyristors, IGBTs and other semiconductor devices used in power conversion systems.
Manufactured by Mersen, a global leader in electrical protection solutions, the Z330187 combines high breaking capacity, low let-through energy (I²t) and reliable fault interruption to help minimise equipment damage and reduce costly downtime. Its robust square body construction, silver-plated contacts and integrated striker ensure dependable performance in industrial environments.
With a 250 A current rating and a 690 V AC IEC rated voltage, the Mersen Z330187 is ideally suited for variable speed drives, UPS systems, soft starters, industrial converters and renewable energy equipment requiring fast semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for power electronics.
- 250 A current rating for demanding industrial applications.
- 690 V AC IEC rated voltage for high-power systems.
- High interrupting capacity provides excellent fault protection.
- Integrated striker indicator for fuse operation monitoring.
- Silver-plated contacts for reliable electrical performance.
Key Features
- Mersen Protistor® semiconductor fuse series.
- Model: Z330187 / DN000UB69V250L.
- 250 A rated current.
- 690 V AC IEC operating voltage.
- aR operating characteristic for semiconductor protection.
- Square body NH000 design with DIN 80 blade contacts.
- Integrated mechanical striker indicator.
- Suitable for protecting IGBTs, SCRs, diodes and thyristors.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are specifically designed to protect sensitive power electronic devices against short-circuit faults before damaging energy reaches the equipment. Their extremely fast operating characteristics provide significantly lower let-through energy than conventional industrial fuses.
The Mersen Protistor® range is widely specified for industrial drives, renewable energy systems, UPS installations and power conversion equipment where reliable semiconductor protection is essential for maintaining system availability.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Industrial automation and power distribution equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Size | NH000 | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | Z330187 | |
| Catalogue No | DN000UB69V250L | |
| Description | Square Body High-Speed Fuse Protistor® Size NH 000 aR 690VAC IEC 250A With Striker DIN 80 Blades | |
| EAN/UPC Code | 8430399015514 | |
| Rated voltage AC UL | 690 V | |
| Rated voltage DC UL | 500 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 250 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Speed/Characteristic | aR | |
| Fuse Size | NH000 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 52000 A²s | |
| Melting I2t | 9860 A²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | DIN 80 Blades | |
| Product Width | 20 mm | |
| Product Length | 100 mm | |
| Product Height | 55.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.3849 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 | 0.1283 kg | |
| Power Dissipation at Rated Current Value | 45 W | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen Z330187 used for?
It is a high-speed semiconductor protection fuse designed to protect power electronic devices such as IGBTs, thyristors and diodes from short-circuit faults.
What is the current rating of this fuse?
The Mersen Z330187 has a 250 A current rating.
What voltage is this fuse rated for?
The fuse is rated for 690 V AC (IEC) and 500 V DC (UL).
What does the aR fuse characteristic mean?
An aR fuse provides ultra-fast short-circuit protection specifically for semiconductor devices and is intended to be used alongside overload protection.
Which applications commonly use this fuse?
The Z330187 is commonly installed in variable speed drives, power converters, UPS systems, renewable energy equipment and other industrial power electronic applications.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide for protecting critical power electronic equipment, helping maximise system reliability while reducing maintenance costs and downtime.
