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MERSEN FUSE CC 7,5 GRC 120 EF 0063 CC7BODKC3GRC120E63M
Engineered for critical DC applications, this 63A Protistor® fuse offers rapid, reliable protection against overcurrents in high-voltage environments up to 750VDC with integrated striker indication and bolted mounting.
£358.28
Why Choose the Mersen R085207 Protistor® High-Speed Fuse?
The Mersen R085207 (D120GC75V63EF) is a premium Protistor® square body high-speed semiconductor fuse designed to deliver rapid and reliable protection for sensitive power electronic equipment. Engineered specifically for demanding DC applications, it safeguards semiconductors including IGBTs, thyristors, diodes and rectifiers against damaging short-circuit currents while helping maximise equipment uptime and reliability.
As part of the proven Mersen Protistor® Size 120 gR 750 VDC series, the R085207 features exceptionally low let-through energy (I²t), low power dissipation and extended service life. The fuse incorporates open slot blade terminals with an integrated striker, providing secure installation and convenient remote fuse indication for critical DC protection systems.
Rated at 63 A with a 750 V DC (IEC) voltage rating, the R085207 is ideally suited to railway power systems, industrial DC drives, battery energy storage systems, UPS equipment and renewable energy installations where fast semiconductor protection is essential.
Key Advantages
- High-speed gR semiconductor protection fuse.
- 63 A current rating.
- 750 V DC IEC rated voltage.
- Protects IGBTs, thyristors, diodes and rectifiers.
- Very low I²t minimises semiconductor damage.
- Integrated striker for remote fuse indication.
- Open slot blade terminals for secure installation.
Key Features
- Mersen Protistor® Size 120 gR series.
- Manufacturer part number: R085207.
- Catalogue number: D120GC75V63EF.
- 63 A rated current.
- 750 V DC IEC rated voltage.
- Square body high-speed semiconductor fuse.
- Open slot blade terminals.
- Integrated striker indication.
Reliable Protection for Critical Power Electronics
High-speed semiconductor fuses are specifically developed to protect sensitive power electronic devices against destructive short-circuit currents. Their extremely fast operating characteristics reduce thermal and electrical stress, helping maximise equipment reliability while minimising downtime and maintenance costs.
The Mersen Protistor® DC range has been developed for railway power and auxiliary circuits together with other demanding industrial DC applications requiring dependable semiconductor protection and long service life.
Typical Applications
- Railway power and auxiliary circuits.
- Industrial DC drives.
- Battery energy storage systems.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy installations.
- Protection of IGBTs, thyristors and power semiconductor devices.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | gR | |
| Voltage | 750 V | |
| Item number | R085207 | |
| Catalogue No | D120GC75V63EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 120 gR 750VDC IEC 63A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340067576 | |
| Rated voltage DC IEC | 750 V | |
| Ampere Rating | 63 A | |
| RoHS Compliant | Yes | |
| AC or DC | DC | |
| Speed/Characteristic | gR | |
| Fuse Size | 120 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 15 kA²s | |
| Melting I2t | 1.175 kA²s | |
| Max. Rated Breaking Capacity DC | 100 kA | |
| Design Details | gRC | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Open Slot Blades | |
| Product Width | 40 mm | |
| Product Length | 179.4 mm | |
| Product Height | 45 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.715 kg | |
| Sell Pack Width | 110 mm | |
| Sell Pack Length | 210 mm | |
| Sell Pack Height | 70 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.715 kg | |
| Power Dissipation at Rated Current Value | 10.4 W | |
| HS Code | 85361050 |
Frequently Asked Questions
What is the Mersen R085207 used for?
The Mersen R085207 is a high-speed semiconductor fuse designed to protect sensitive power electronic devices including IGBTs, thyristors, diodes and rectifiers from damaging fault currents.
What is the current rating of this fuse?
The fuse has a 63 A rated current.
What voltage is the R085207 rated for?
The fuse is rated for 750 V DC (IEC).
Does this fuse include a striker?
Yes. The R085207 incorporates an integrated striker for remote fuse indication or auxiliary signalling.
Where is the R085207 commonly installed?
It is commonly installed in railway power systems, industrial DC drives, UPS systems, battery storage installations and power conversion equipment requiring high-speed semiconductor protection.
Trusted for High-Speed Semiconductor Protection
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, railway engineers, panel builders and industrial automation specialists for delivering rapid fault protection and dependable long-term performance in demanding DC applications.
