Why Choose the Mersen T302697 Semiconductor Fuse?
The Mersen T302697 is a high-speed gR semiconductor protection fuse from the renowned Protistor® range, engineered to provide full-range protection against overloads and short circuits in power semiconductor applications. This Size 72 square body fuse is rated at 250 A and 690 VAC, and features DIN 110 blade terminals with an integrated striker for remote indication or microswitch operation. It is specifically designed to protect sensitive power electronic devices including IGBTs, diodes, SCRs and thyristors in demanding industrial applications.
Manufactured using precision die-cut pure silver fuse elements embedded in solidified silica sand, the T302697 delivers extremely low let-through energy (I²t), high interrupting capacity and rapid fault clearing. Silver-plated contacts and non-magnetic hardware ensure dependable long-term performance in industrial environments.
The Mersen T302697 is ideal for OEM equipment, industrial maintenance and replacement applications where this exact manufacturer reference has been specified. Always verify the required electrical ratings and mounting arrangement before installation.
Key Advantages
- Genuine Mersen Protistor® semiconductor protection fuse.
- Full-range gR semiconductor protection.
- Rated 250 A.
- Rated operating voltage of 690 VAC.
- High interrupting capacity of 150 kA AC.
- Integrated striker for indication or auxiliary microswitch operation.
Key Features
- Manufacturer: Mersen
- Part number: T302697
- Catalogue number: PC72GB69V250D1A
- Protistor® Size 72 square body construction.
- gR full-range semiconductor protection characteristic.
- DIN 110 blade terminals.
- Integrated striker (trip indicator).
- Silver-plated contact surfaces.
- Designed for semiconductor protection applications.
- RoHS compliant.
Designed for Power Semiconductor Protection
The Mersen T302697 has been engineered to provide full-range protection for modern semiconductor devices by rapidly interrupting overloads and high fault currents before damage can occur. Its low let-through energy helps maximise equipment reliability while reducing downtime and maintenance costs.
Typical installations include variable speed drives, industrial inverters, UPS systems, rectifiers, converters, renewable energy equipment and other power electronic systems using high-value semiconductor devices.
Typical Applications
- Variable speed drives (VSDs).
- Industrial inverters.
- UPS systems.
- Power converters.
- Rectifiers.
- Renewable energy systems.
- Motor drives and soft starters.
- OEM industrial machinery.
