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MERSEN FUSE CC6,621 CP GRB 27.60 100 CC6,621CPGRB27.60100
Mersen T099400 FD27GB66V100T Protistor high-speed cylindrical gR semiconductor fuse rated at 100 A and 660 V DC, with a 50 kA breaking capacity and integrated striker.
£101.57
Why Choose the Mersen T099400 Protistor High-Speed Fuse?
The Mersen T099400, catalogue number FD27GB66V100T, 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 engineered for railway power systems, auxiliary circuits and demanding industrial DC applications requiring rapid and dependable fault interruption.
This fuse-link provides low I²t performance to limit the electrical energy transferred to semiconductor components during fault conditions. Its reduced power losses and suitability for operation at elevated temperatures help improve system efficiency, extend equipment life and minimise damage to valuable power electronic devices.
With a rated current of 100 A, a rated voltage of 660 V DC and a maximum DC breaking capacity of 50 kA, the T099400 is suitable for protecting converters, rectifiers, inverters and railway auxiliary power equipment. Its integrated striker provides mechanical fuse operation indication for use with compatible monitoring and signalling accessories.
Key Advantages
- High-speed gR semiconductor fuse for full-range DC circuit protection.
- 100 A rated current for demanding power electronic applications.
- 660 V DC IEC voltage rating for industrial and railway systems.
- Low I²t performance helps minimise damage to semiconductor components.
- Maximum DC breaking capacity of 50 kA.
- Integrated striker indicator supports fuse status monitoring.
- Low power dissipation helps improve operating efficiency.
- Designed for reliable operation at elevated temperatures.
Key Features
- Mersen Protistor® high-speed fuse series.
- Manufacturer item number T099400.
- Catalogue number FD27GB66V100T.
- 100 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 High-Power DC Equipment
Semiconductor components such as diodes, thyristors and IGBTs can be permanently damaged within milliseconds when exposed to excessive fault current. The Mersen T099400 interrupts these currents rapidly, limiting let-through energy and helping protect converters, rectifiers and associated control equipment from thermal and mechanical damage.
Its gR characteristic provides full-range protection against overload and short-circuit currents. Combined with its compact cylindrical construction, integrated striker and low power losses, the fuse is well suited to railway auxiliary systems and industrial DC installations where dependable protection and clear fuse status indication are essential.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial DC converters.
- Semiconductor rectifier assemblies.
- Power inverters and frequency converters.
- DC motor drives and control systems.
- Battery energy storage equipment.
- Renewable energy power conversion systems.
- Industrial automation and power distribution equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Cylindrical, Semiconductor | |
| Fuse Size | 27x60 mm | |
| Fuse Class | gR | |
| Current | 100 A | |
| Voltage | 660 V | |
| Manufacturer | Mersen | |
| Series | Protistor® 27 × 60 gR (gRB), 660 V DC | |
| Model | T099400 | |
| Catalogue number | FD27GB66V100T | |
| Product type | High-speed cylindrical semiconductor fuse | |
| Rated current | 100 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 | 27 mm | |
| Product length | 60.3 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 | 12.9 W | |
| Product weight | Approximately 0.08 kg | |
| Sell pack quantity | 10 | |
| EAN / UPC | 3605340161410 | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen T099400 used for?
The Mersen T099400 is used to provide high-speed protection for semiconductor devices and DC power electronic equipment against overloads and short-circuit currents.
What is the current rating of the T099400 fuse?
The Mersen T099400 has a rated current of 100 A.
What voltage is the Mersen T099400 rated for?
The fuse has an IEC rated voltage of 660 V DC.
What is the breaking capacity of this fuse?
The Mersen T099400 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 monitoring, signalling or microswitch accessories.
How is the Mersen T099400 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.
