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MERSEN FUSE CC 7,5 GRC 120 EF 0050 CC7,5GRC120EF0050
High-speed DC fuse with 50A rating, 750VDC voltage, gR characteristic, integrated striker indication, and open slot blades for bolted mounting.
£356.92
Why Choose the Mersen Y084776 High-Speed Semiconductor Fuse?
The Mersen Y084776 is a premium Protistor® square body high-speed semiconductor fuse designed to provide fast and reliable protection for power semiconductor devices operating in demanding DC applications. As part of the trusted Mersen Protistor® Size 120 gR 750 VDC series, it delivers rapid fault interruption to minimise damage to sensitive electronic components while maximising system uptime and reliability.
Designed for railway power systems, industrial drives and DC power conversion equipment, the Y084776 features a low I²t design, high breaking capacity and low power dissipation. Its compact square body construction with open slot blade terminals and integrated striker allows simple installation while ensuring dependable operation in demanding industrial environments.
With a rated current of 50 A and a 750 V DC IEC voltage rating, the Mersen Y084776 is ideally suited to protecting IGBTs, thyristors, diodes and other semiconductor devices used in railway, UPS and industrial DC power systems.
Key Advantages
- High-speed semiconductor protection fuse for DC applications.
- 50 A current rating for sensitive power electronics.
- 750 V DC IEC voltage rating.
- Ultra-fast gR characteristic for comprehensive semiconductor protection.
- Integrated striker mechanism for fuse status indication.
- 100 kA DC breaking capacity for dependable fault interruption.
Key Features
- Mersen Protistor® Size 120 gR series.
- 50 A rated current.
- 750 V DC IEC rated voltage.
- 100 kA DC breaking capacity.
- Square body construction with open slot blade terminals.
- Integrated striker for blown fuse indication.
- Very low I²t for enhanced semiconductor protection.
- Suitable for railway, UPS and industrial power conversion equipment.
Reliable Protection for DC Power Electronics
High-speed semiconductor fuses are engineered to protect sensitive power electronic devices from damaging short circuits. Their extremely rapid response limits fault energy, helping reduce equipment damage, minimise downtime and extend the operational life of valuable semiconductor components.
The Mersen Protistor® range is widely used in railway traction equipment, UPS systems, industrial drives and power conversion systems where dependable semiconductor protection is essential.
Typical Applications
- Railway traction and auxiliary systems.
- Industrial DC drives.
- UPS and backup power equipment.
- Power converters and rectifiers.
- Battery energy storage systems.
- Protection of IGBTs, thyristors and semiconductor modules.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | gR | |
| Voltage | 750 V | |
| Item number | Y084776 | |
| Catalogue No | D120GC75V50EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 120 gR 750VDC IEC 50A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340065282 | |
| Rated voltage DC IEC | 750 V | |
| Ampere Rating | 50 A | |
| RoHS Compliant | Yes | |
| AC or DC | DC | |
| Speed/Characteristic | gR | |
| Fuse Size | 120 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 8.5 kA²s | |
| Melting I2t | 0.665 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 | 8.1 W | |
| HS Code | 85361050 |
Frequently Asked Questions
What is the Mersen Y084776 used for?
The Y084776 is a high-speed semiconductor fuse designed to protect power electronic devices including IGBTs, thyristors and diodes in demanding DC applications.
What is the current rating of this fuse?
The fuse has a 50 A rated current.
What voltage is the Mersen Y084776 designed for?
It is rated for 750 V DC (IEC) applications.
Does this fuse include a striker?
Yes, the Y084776 features an integrated striker that provides visual indication when the fuse has operated.
Where is this fuse commonly installed?
It is commonly used in railway systems, UPS equipment, industrial drives and DC power conversion systems requiring fast semiconductor protection.
Trusted for Critical Semiconductor Protection
Mersen Protistor® semiconductor fuses are trusted worldwide by engineers to provide rapid fault protection, dependable reliability and long service life in demanding industrial and railway applications.
