Why Choose the Mersen P302693 Protistor® High-Speed Fuse?
The Mersen P302693 (D72GB60V350EF) is a premium Protistor® square body high-speed semiconductor fuse engineered to deliver rapid and reliable protection for sensitive power electronic equipment. Designed specifically for demanding DC applications, this fuse provides exceptional protection for semiconductors including IGBTs, thyristors, diodes and rectifiers used in industrial power conversion systems.
As part of the trusted Mersen Protistor® Size 72 gR series, the P302693 combines low let-through energy with a high interrupting capacity to minimise damage during fault conditions. Manufactured using pure silver fuse elements embedded in solidified sand with silver-plated contacts, it delivers dependable long-term performance in demanding industrial environments.
Rated at 350 A with a 600 V DC (IEC) / 650 V DC (UL) voltage rating, the P302693 is ideal for protecting DC drives, battery energy storage systems, power converters, UPS equipment and renewable energy installations. The fuse features open slot blade terminals with an integrated striker for simple installation and remote fuse indication.
Key Advantages
- High-speed gR semiconductor protection fuse.
- 350 A current rating for demanding industrial applications.
- 600 V DC IEC / 650 V DC UL voltage rating.
- Protects IGBTs, thyristors, diodes and other semiconductor devices.
- Low I²t characteristics reduce damage during fault conditions.
- Integrated striker for fuse indication and auxiliary switching.
- Robust square body design with silver-plated contacts.
Key Features
- Mersen Protistor® Size 72 gR series.
- Manufacturer part number: P302693.
- Catalogue number: D72GB60V350EF.
- 350 A rated current.
- 600 V DC IEC / 650 V DC UL rated voltage.
- Square body high-speed semiconductor fuse.
- Open slot blade terminals.
- Integrated striker indicator.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are specifically developed to protect sensitive electronic power devices from destructive fault currents. Their rapid operation significantly reduces thermal and electrical stress, helping extend equipment life while reducing costly downtime.
The Mersen Protistor® range is widely specified by OEMs, industrial engineers and panel builders for battery systems, industrial drives, renewable energy installations and power conversion equipment where dependable semiconductor protection is essential.
Typical Applications
- Industrial DC drives.
- Power converters and rectifiers.
- Battery energy storage systems.
- Renewable energy installations.
- UPS and critical power systems.
- Industrial automation equipment.
- Semiconductor protection within power electronic systems.
