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MERSEN FUSE CC 7,5 GRC 121 EF 0200 A086710
High-speed fuse designed for 750V DC and 200A applications with striker indication and open slot blade terminals. Suitable for semiconductor protection in industrial and renewable energy systems.
£397.51
Why Choose the Mersen A086710 D121GC75V200EF Fuse?
The Mersen A086710 D121GC75V200EF is a high-performance Protistor® Size 121 gR square body high-speed fuse designed to protect semiconductor devices and DC power systems operating at up to 750 V DC. Manufactured by Mersen, this fuse is engineered for demanding railway, traction, renewable energy and industrial power conversion applications where extremely fast fault interruption is essential.
Designed with open slot blade terminals and an integrated striker indicator, the D121GC75V200EF offers straightforward installation and rapid indication when the fuse has operated. Its low I²t characteristics help minimise damage to sensitive semiconductor devices, improving equipment protection and reducing downtime.
With a 200 A current rating, 750 V DC IEC voltage rating and an impressive 100 kA DC breaking capacity, the A086710 provides dependable protection for inverters, converters, UPS systems and railway auxiliary power circuits.
Key Advantages
- Protistor® Size 121 gR high-speed semiconductor fuse.
- 200 A current rating for demanding DC applications.
- 750 V DC IEC rated voltage.
- 100 kA DC breaking capacity.
- Very low I²t to minimise semiconductor damage.
- Open slot blade terminals with integrated striker indicator.
- Excellent cycling capability and low power loss.
Key Features
- Mersen Protistor® D121GC75V200EF.
- Item number: A086710.
- Square body high-speed fuse.
- gR utilisation category for semiconductor protection.
- 750 V DC IEC rating.
- 200 A rated current.
- 100 kA DC interrupting capacity.
- Open slot blade terminals.
- Integrated striker for fuse operation indication.
- RoHS compliant.
Designed for Semiconductor and Railway DC Protection
The Mersen D121GC75V200EF has been specifically developed to protect modern semiconductor equipment operating on DC supplies. Its extremely fast operating characteristics reduce thermal and electrical stress on IGBTs, diodes, thyristors and other power electronic devices during fault conditions.
This fuse is widely used in railway traction systems, DC converters, UPS equipment, battery energy storage systems and industrial drives where dependable high-speed protection is critical to maintaining system reliability.
Typical Applications
- Railway traction and auxiliary power circuits.
- DC power converters.
- Variable speed drives.
- UPS systems.
- Battery energy storage systems.
- Renewable energy inverters.
- Industrial semiconductor protection.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | gR | |
| Voltage | 750 V | |
| Item number | A086710 | |
| Catalogue No | D121GC75V200EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 121 gR 750VDC IEC 200A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340075748 | |
| Rated voltage DC IEC | 750 V | |
| Ampere Rating | 200 A | |
| RoHS Compliant | Yes | |
| AC or DC | DC | |
| Speed/Characteristic | gR | |
| Fuse Size | 121 | |
| Mounting | Bolted | |
| Melting I2t | 11.85 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 | 51 mm | |
| Product Length | 191 mm | |
| Product Height | 55 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 1.023 kg | |
| Sell Pack Width | 115 mm | |
| Sell Pack Length | 265 mm | |
| Sell Pack Height | 70 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 1.023 kg | |
| Power Dissipation at Rated Current Value | 37.5 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen A086710 used for?
The Mersen A086710 is a Protistor® high-speed semiconductor fuse designed to protect power electronic equipment operating on DC systems.
What is the current rating of the D121GC75V200EF?
This fuse has a rated current of 200 A.
What voltage is the A086710 rated for?
The fuse is rated for 750 V DC (IEC).
What is the breaking capacity?
The Mersen A086710 provides a 100 kA DC breaking capacity.
What does the gR classification mean?
The gR utilisation category indicates a full-range high-speed fuse designed specifically for protecting semiconductor devices against overloads and short circuits.
Trusted High-Speed Protection from Mersen
Mersen Protistor® semiconductor fuses are trusted by railway operators, renewable energy manufacturers, OEMs and industrial engineers worldwide for fast, reliable protection of high-value power electronic equipment.
