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MERSEN FUSE D02-RECTI.EINSATZ 50A 440V GR D02GR44V50
Mersen R201771 D02GR44V50 high-speed NEOZED gR fuse link rated at 50 A and 440 V AC/DC for full-range semiconductor protection.
Why Choose the Mersen R201771 D02GR44V50 High-Speed Fuse Link?
The Mersen R201771 is a premium D02 NEOZED gR semiconductor fuse link designed to provide ultra-fast protection for sensitive power electronic equipment. As part of Mersen's trusted RECTICUR D0 range, it delivers exceptional current-limiting performance to protect semiconductors against damaging overloads and short-circuit currents.
With a 50 A rated current and 440 V AC / 440 V DC rated voltage, the R201771 is ideal for protecting variable speed drives, frequency converters, rectifiers, UPS systems and industrial power converters. Its gR utilisation category provides full-range semiconductor protection, ensuring rapid fault interruption before excessive fault energy reaches sensitive electronic components.
The compact D02 NEOZED screw-in design enables straightforward installation into compatible fuse bases whilst offering a 100 kA breaking capacity. This helps minimise equipment damage, reduce downtime and improve the reliability of industrial automation systems.
Key Advantages
- Ultra-fast semiconductor protection for sensitive electronic equipment.
- 50 A rated current for industrial power electronic applications.
- 440 V AC / 440 V DC rated operation.
- gR full-range utilisation category.
- 100 kA breaking capacity for dependable fault interruption.
- Compact D02 NEOZED screw-in fuse-link construction.
Key Features
- Manufacturer: Mersen.
- Model: R201771.
- Catalogue number: D02GR44V50.
- D02 NEOZED high-speed semiconductor fuse.
- 50 A rated current.
- 440 V AC / 440 V DC rated voltage.
- Ultra-fast current-limiting operation.
- Suitable for semiconductor and power electronic protection.
- Compatible with D02 NEOZED fuse holders.
Reliable Protection for Power Electronic Equipment
The Mersen R201771 is engineered to interrupt fault currents extremely quickly, reducing thermal and electrical stress on semiconductor devices. Its high current-limiting performance helps protect expensive electronic components whilst improving the reliability of industrial automation systems.
The compact D02 NEOZED format makes the fuse suitable for modern control panels, power conversion equipment and industrial machinery where dependable semiconductor protection is essential for continuous operation.
Typical Applications
- Variable speed drives.
- Frequency converters.
- Rectifiers.
- UPS systems.
- Power converters.
- Industrial automation and control panels.
Technical Specifications
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| Current | 50 A | |
|---|---|---|
| Voltage | 440 V | |
| Device Type | Fuse link | |
| Fuse Type | D / D0 (Neozed/Diazed), Semiconductor | |
| Fuse Size | D02 | |
| Fuse Class | gR | |
| Manufacturer | Mersen | |
| Series | RECTICUR D0 High-Speed Fuse Links | |
| Model | R201771 | |
| Catalogue number | D02GR44V50 | |
| Product type | High-speed semiconductor fuse link | |
| Fuse size | D02 (E18) | |
| Utilisation category | gR | |
| Rated current | 50 A | |
| Rated voltage AC | 440 V | |
| Rated voltage DC | 440 V | |
| Breaking capacity | 100 kA | |
| Pre-arcing I²t | 830 A²s | |
| Operating I²t | 1650 A²s | |
| Power dissipation | 10 W | |
| Approximate weight | 13 g | |
| Packaging quantity | 25 |
Frequently Asked Questions
What is the Mersen R201771 used for?
It is a D02 NEOZED gR high-speed fuse designed to protect semiconductor devices and power electronic equipment from overloads and short-circuit currents.
What is the current rating of this fuse?
The R201771 has a rated current of 50 A.
What voltage is this fuse rated for?
The fuse is rated for 440 V AC and 440 V DC operation.
What does the gR utilisation category mean?
gR fuse links provide full-range protection for semiconductor devices against both overload and short-circuit faults.
Where is this fuse commonly installed?
The R201771 is commonly installed in drives, rectifiers, converters, UPS systems and industrial power electronic equipment.
Trusted by Power Electronics Professionals Worldwide
Mersen RECTICUR semiconductor fuse links are trusted worldwide by machine builders, panel manufacturers and maintenance engineers to provide ultra-fast protection for critical power electronic equipment.
