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MERSEN FUSE CC6,621 CP GRB 27.60 4 FD27GB66V4T
Mersen R098593 FD27GB66V4T Protistor high-speed cylindrical gR semiconductor fuse rated at 4 A and 660 V DC, with a 50 kA breaking capacity and integrated striker.
£54.95
Why Choose the Mersen R098593 Protistor High-Speed Fuse?
The Mersen R098593, catalogue number FD27GB66V4T, 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® 27 × 60 mm gR (gRB) series, it is developed for railway power systems, auxiliary circuits and industrial DC applications requiring rapid and dependable fault interruption.
This fuse-link provides low let-through energy to help minimise thermal and mechanical damage to semiconductor components during electrical faults. Its low power dissipation and suitability for operation at elevated temperatures support improved reliability, longer service life and efficient performance in demanding electrical installations.
With a rated current of 4 A, a rated voltage of 660 V DC and a maximum DC breaking capacity of 50 kA, the R098593 is suitable for protecting converters, rectifiers, inverters and railway auxiliary equipment. Its integrated striker provides mechanical fuse operation indication for compatible signalling and monitoring systems.
Key Advantages
- High-speed gR semiconductor fuse for full-range DC protection.
- 4 A rated current for sensitive power electronic circuits.
- 660 V DC IEC voltage rating for industrial and railway systems.
- Low I²t performance helps minimise semiconductor damage during faults.
- Maximum DC breaking capacity of 50 kA.
- Integrated striker indicator supports fuse status monitoring.
- Low power dissipation helps improve system efficiency.
- Compact cylindrical construction simplifies installation.
Key Features
- Mersen Protistor® high-speed fuse series.
- Manufacturer item number R098593.
- Catalogue number FD27GB66V4T.
- 4 A rated current.
- 660 V DC IEC rated voltage.
- gR speed and utilisation characteristic.
- gRB design for semiconductor protection.
- Integrated striker for fuse operation indication.
- 27 × 60 mm cylindrical fuse format.
- Silver-plated copper ferrule terminals.
- Clip-mounting configuration.
- RoHS-compliant construction.
Reliable Protection for DC Semiconductor Circuits
Power semiconductor components can be permanently damaged within milliseconds when exposed to excessive fault current. The Mersen R098593 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 control equipment.
Its gR characteristic provides full-range protection against overload and short-circuit currents. Combined with its compact ceramic body, low power loss and integrated striker, the fuse is well suited to railway auxiliary circuits and industrial DC systems where reliable protection and clear fuse status indication are required.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial DC converters.
- Semiconductor rectifier assemblies.
- Power inverters and frequency converters.
- DC control and signalling equipment.
- Industrial automation panels.
- Battery-powered industrial systems.
- Equipment using diodes, thyristors or power transistors.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Cylindrical, Semiconductor | |
| Fuse Size | 27x60 mm | |
| Fuse Class | gR | |
| Current | 4 A | |
| Voltage | 660 V | |
| Manufacturer | Mersen | |
| Series | Protistor® 27 × 60 gR (gRB), 660 V DC | |
| Model | R098593 | |
| Catalogue number | FD27GB66V4T | |
| Product type | High-speed cylindrical semiconductor fuse | |
| Rated current | 4 A | |
| Rated voltage | 660 V DC IEC | |
| Current type | DC | |
| Speed / characteristic | gR | |
| Design | gRB | |
| Maximum DC breaking capacity | 50 kA | |
| Fuse size | 27 × 60 mm | |
| Product diameter | Approximately 27 mm | |
| Product length | Approximately 60 mm | |
| Mounting method | Clip mounting | |
| Indication system | Yes | |
| Indication type | Striker | |
| Body material | Ceramic | |
| Terminal material | Silver-plated copper | |
| Terminal type | Ferrule | |
| Power dissipation at rated current | 1 W | |
| Product weight | Approximately 0.08 kg | |
| EAN / UPC | 3605340155242 | |
| RoHS compliant | Yes | |
| HS Code | 85361010 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen R098593 used for?
The Mersen R098593 is used to provide high-speed protection for semiconductor devices and sensitive DC power electronic equipment against overloads and short-circuit currents.
What is the current rating of the R098593 fuse?
The Mersen R098593 has a rated current of 4 A.
What voltage is the Mersen R098593 rated for?
The fuse has an IEC rated voltage of 660 V DC.
What is the breaking capacity of this fuse?
The Mersen R098593 has a maximum rated DC breaking capacity of 50 kA.
What does the integrated striker do?
The striker provides mechanical indication when the fuse has operated and can activate compatible signalling, monitoring or microswitch accessories.
How is the Mersen R098593 installed?
The 27 × 60 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.
