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MERSEN FUSE CC1551 CP GRB 20 127 3,15 CC1551CPgRB201273
Mersen H075746 Protistor high-speed cylindrical semiconductor fuse rated at 3.15 A and 1500 V DC with 30 kA breaking capacity and integrated striker indication.
£62.53
Why Choose the Mersen H075746 Protistor® High-Speed Fuse?
The Mersen H075746, catalogue number FD20GB150V3,15T, is a high-speed cylindrical semiconductor protection fuse developed specifically for high-voltage DC applications. As part of the Mersen Protistor® 20 × 127 mm gR series, it provides rapid, full-range protection for semiconductor devices, auxiliary circuits, control systems and measuring equipment where dependable fault interruption is essential.
Featuring a gRB operating characteristic, the H075746 delivers exceptionally low let-through energy, helping minimise thermal and electrical stress on sensitive power electronic components during overload and short-circuit conditions. An integrated striker provides visual indication and supports remote monitoring when installed with compatible fuse holders.
With a rated current of 3.15 A, a 1500 V DC IEC voltage rating and a 30 kA DC breaking capacity, the H075746 is ideally suited to renewable energy installations, industrial automation, railway systems and DC power conversion equipment.
Key Advantages
- High-speed semiconductor protection fuse for demanding DC applications.
- 3.15 A rated current for auxiliary and control circuits.
- 1500 V DC IEC voltage rating.
- Fast-acting gRB characteristic with full-range protection.
- Low I²t performance reduces stress on semiconductor devices.
- Integrated striker indication supports rapid fault identification.
Key Features
- Mersen Protistor® high-speed fuse series.
- 3.15 A rated current.
- 1500 V DC rated voltage.
- 30 kA DC breaking capacity.
- gR protection class.
- gRB design characteristic.
- Compact 20 × 127 mm cylindrical body.
- Integrated striker for operated-fuse indication.
Reliable Protection for High-Voltage DC Equipment
The Mersen H075746 is engineered to interrupt fault currents before excessive energy reaches sensitive semiconductor devices. Its fast operating speed and low let-through energy help maximise equipment reliability while reducing the likelihood of costly damage to power electronic components.
Designed for modern DC electrical systems, this fuse provides dependable protection for converters, auxiliary power supplies, control circuits and monitoring equipment used throughout industrial automation, renewable energy and transportation applications.
Typical Applications
- Industrial DC auxiliary circuits.
- Control and monitoring equipment.
- Power converters and rectifiers.
- Battery energy storage systems.
- Solar photovoltaic installations.
- Semiconductor and power electronic protection.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Cylindrical, Semiconductor | |
| Fuse Size | 20x127 mm | |
| Fuse Class | gR | |
| Current | 3.15 A | |
| Voltage | 1500 V | |
| Manufacturer | Mersen | |
| Series | Protistor® Size 20 × 127 gR | |
| Model | H075746 | |
| Catalogue number | FD20GB150V3,15T | |
| Product type | High-speed cylindrical semiconductor fuse | |
| Rated current | 3.15 A | |
| Rated voltage | 1500 V DC | |
| Breaking capacity | 30 kA DC | |
| Operating class | gR | |
| Design characteristic | gRB | |
| Fuse size | 20 × 127 mm | |
| Mounting type | Clip mounting | |
| Terminal type | Ferrule | |
| Fuse indication | Integrated striker | |
| Power dissipation at rated current | 2.1 W | |
| Approximate weight | 97 g | |
| EAN | 3605340011357 | |
| Compliance | IEC 60269-4, RoHS, UL Recognised | |
| HS Code | 85351000 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen H075746 used for?
The H075746 protects semiconductor devices, auxiliary circuits, control systems and monitoring equipment in high-voltage DC electrical installations.
What is the current rating of the H075746?
The Mersen H075746 has a rated current of 3.15 A.
What voltage is this fuse rated for?
The fuse is rated for operation at up to 1500 V DC.
Does this fuse include an indicator?
Yes. The H075746 incorporates an integrated striker that provides operated-fuse indication when used with compatible fuse holders.
What is the breaking capacity?
The fuse has a rated DC breaking capacity of 30 kA.
Trusted by Power Electronics Professionals
Mersen Protistor® high-speed fuses are trusted worldwide by OEMs, panel builders and maintenance engineers to deliver dependable semiconductor protection in demanding industrial and renewable energy applications.
