Why Choose the Mersen E075720 Protistor® High-Speed Fuse?
The Mersen E075720 is a high-performance Protistor® cylindrical semiconductor protection fuse engineered to provide ultra-fast protection for sensitive power electronic devices operating on DC systems. With a 2 A current rating and a 440 V DC voltage rating, this fuse rapidly clears fault currents to minimise damage to semiconductors and improve overall system reliability.
Part of the trusted Mersen Protistor® 14 × 51 mm gLB series, the E075720 features a built-in striker indicator, high interrupting capacity and low let-through energy. It is specifically designed to protect IGBTs, diodes, thyristors and other semiconductor devices used within industrial power conversion equipment.
Designed to IEC standards and manufactured for demanding industrial environments, this fuse is ideal for renewable energy systems, battery storage equipment, DC drives, UPS systems and power electronic converters where dependable semiconductor protection is essential.
Key Advantages
- Ultra-fast gLB semiconductor protection fuse.
- 440 V DC rating for demanding DC power applications.
- 2 A current rating for sensitive electronic protection.
- Low I²t characteristics minimise damage during fault conditions.
- Integrated striker provides remote fuse indication capability.
- Designed specifically for protecting modern semiconductor devices.
Key Features
- Manufacturer: Mersen.
- Series: Protistor® Size 14 × 51 gLB.
- Part number: E075720.
- Catalogue number: FD14GB44V2T.
- Rated current: 2 A.
- Rated voltage: 440 V DC.
- Fuse characteristic: gLB high-speed semiconductor protection.
- 14 × 51 mm cylindrical body.
- Built-in striker indicator.
- RoHS compliant.
Fast Protection for Sensitive Power Electronics
Semiconductor fuses are designed to interrupt high fault currents before expensive electronic components suffer irreversible damage. Their ultra-fast operating characteristics significantly reduce thermal and electrical stress on IGBTs, diodes, SCRs and other semiconductor devices.
The Mersen Protistor® range is widely used by equipment manufacturers across renewable energy, industrial automation, UPS systems, battery energy storage and power conversion industries where dependable circuit protection is critical to equipment performance and reliability.
Typical Applications
- Industrial DC power converters.
- Battery energy storage systems.
- Solar photovoltaic equipment.
- UPS systems.
- DC motor drives.
- Protection of IGBT, SCR and diode modules.
- Industrial power electronic equipment.
