Why Choose the Mersen H075700 Protistor® High-Speed Fuse?
The Mersen H075700, catalogue number FD20GB150V2T, is a high-speed cylindrical semiconductor protection fuse designed 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, measuring equipment and monitoring systems where fast fault clearance is essential.
Featuring a gRB operating characteristic, the H075700 delivers exceptionally low let-through energy to minimise damage to sensitive power electronic components during overload and short-circuit conditions. Its integrated striker enables quick visual indication and remote monitoring when installed in compatible fuse holders.
With a rated current of 2 A, a 1500 V DC IEC voltage rating and a 30 kA DC breaking capacity, the H075700 is ideally suited to renewable energy systems, industrial automation, railway applications and DC power conversion equipment.
Key Advantages
- High-speed semiconductor protection fuse for demanding DC applications.
- 2 A rated current for auxiliary and monitoring 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.
- 2 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 H075700 is engineered to interrupt fault currents before excessive energy reaches sensitive semiconductor components. Its low let-through energy and fast operating speed help maximise equipment reliability while reducing the risk of costly component damage.
Designed for modern DC electrical systems, this fuse provides dependable protection for converters, control circuits, auxiliary power supplies and monitoring equipment used in 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.
