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MERSEN FUSE CC2000 CP GRB 36 250 40 FD36GB200V40
Mersen W081439 FD36GB200V40 Protistor high-speed cylindrical gR semiconductor fuse rated at 40 A and 2000 V DC, with a 30 kA DC breaking capacity.
£254.24
Why Choose the Mersen W081439 Protistor High-Speed Fuse?
The Mersen W081439, catalogue number FD36GB200V40, is a high-speed cylindrical semiconductor fuse designed to protect sensitive DC power electronic equipment against damaging overloads and short-circuit currents. Part of the Mersen Protistor® 36 × 250 mm gR (gRB) series, it provides dependable protection for railway power systems, auxiliary circuits and demanding high-voltage DC installations.
This fuse-link is developed for modern DC equipment operating under challenging electrical and thermal conditions. Its low I²t performance helps reduce the energy transferred to protected semiconductor components during short circuits, while its reduced power losses and robust construction support reliable operation and a long service life.
With a rated current of 40 A, a rated voltage of 2000 V DC and a maximum DC breaking capacity of 30 kA, the W081439 is suitable for protecting converters, rectifiers, inverters and railway auxiliary power equipment. Its cylindrical ferrule design enables installation in compatible fuse clips rated for the applicable voltage and current.
Key Advantages
- High-speed gR semiconductor fuse for full-range DC protection.
- 40 A rated current for power electronic applications.
- 2000 V DC IEC voltage rating for high-voltage systems.
- Low I²t performance helps minimise damage to semiconductor components.
- Maximum DC breaking capacity of 30 kA.
- Low power losses support efficient equipment operation.
- Designed for dependable performance at elevated temperatures.
- Robust ceramic construction provides excellent thermal resistance.
Key Features
- Mersen Protistor® high-speed fuse series.
- Manufacturer item number W081439.
- Catalogue number FD36GB200V40.
- 40 A rated current.
- 2000 V DC IEC rated voltage.
- gR speed and utilisation characteristic.
- gRB design for semiconductor protection.
- 36 × 250 mm cylindrical fuse format.
- Silver-plated copper ferrule terminals.
- Clip-mounting configuration.
- Ceramic insulating body.
- RoHS-compliant construction.
Reliable Protection for High-Voltage DC Equipment
Power semiconductor components can be permanently damaged within milliseconds when exposed to excessive fault current. The Mersen W081439 is engineered to interrupt these currents rapidly, limiting the electrical energy transferred to protected devices and reducing the risk of damage to converters, rectifiers and associated power electronic equipment.
Its gR characteristic provides full-range protection against overload and short-circuit currents. Combined with its high 2000 V DC rating, ceramic body and silver-plated copper ferrules, the fuse is well suited to railway and industrial DC systems where dependable high-speed protection is required.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial high-voltage DC converters.
- Semiconductor rectifier assemblies.
- Power inverters and frequency converters.
- DC traction equipment.
- Battery energy storage systems.
- Renewable energy power conversion equipment.
- High-voltage DC distribution systems.
Technical Specifications
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| Voltage | 200 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | Cylindrical, Semiconductor | |
| Fuse Class | gR | |
| Current | 40 A | |
| Manufacturer | Mersen | |
| Series | Protistor® 36 × 250 gR (gRB), 2000 V DC | |
| Model | W081439 | |
| Catalogue number | FD36GB200V40 | |
| Product type | High-speed cylindrical semiconductor fuse | |
| Rated current | 40 A | |
| Rated voltage | 2000 V DC IEC | |
| Current type | DC | |
| Speed / characteristic | gR | |
| Design | gRB | |
| Maximum DC breaking capacity | 30 kA | |
| Fuse size | 36 × 250 mm | |
| Product diameter | 36 mm | |
| Product length | 250 mm | |
| Mounting method | Clip mounting | |
| Body material | Ceramic | |
| Terminal material | Silver-plated copper | |
| Terminal type | Ferrule | |
| Power dissipation at rated current | 33.6 W | |
| Product weight | Approximately 0.61 kg | |
| Sell pack quantity | 1 | |
| EAN / UPC | 3605340045734 | |
| RoHS compliant | Yes | |
| HS Code | 85351000 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen W081439 used for?
The Mersen W081439 is used to provide high-speed protection for semiconductor devices and power electronic equipment operating in high-voltage DC circuits.
What is the current rating of the W081439 fuse?
The Mersen W081439 has a rated current of 40 A.
What voltage is the Mersen W081439 rated for?
The fuse has an IEC rated voltage of 2000 V DC.
What is the breaking capacity of this fuse?
The Mersen W081439 has a maximum rated DC breaking capacity of 30 kA.
What does the gR characteristic mean?
The gR classification identifies a full-range, high-speed fuse designed to protect semiconductor devices against overload and short-circuit currents.
How is the Mersen W081439 installed?
The 36 × 250 mm cylindrical fuse is designed for clip mounting within a compatible fuse holder rated for the circuit voltage and current.
Trusted by Railway and Power Electronics Engineers
Mersen Protistor® semiconductor fuses are widely specified by railway engineers, equipment manufacturers and power electronics specialists for dependable high-speed protection in demanding DC applications.
