Why Choose the Mersen S302236 High-Speed Semiconductor Fuse?
The Mersen S302236 is a high-performance Protistor® square body high-speed semiconductor fuse developed to provide exceptional short-circuit protection for sensitive power electronic devices. Designed for demanding industrial applications, this aR class ultra-fast fuse protects IGBTs, diodes, thyristors and other semiconductor components from damaging fault currents while helping maximise equipment uptime.
As part of the trusted Mersen Protistor® Size 32 series, the S302236 is engineered for use in variable frequency drives, UPS systems, power converters, industrial motor drives and renewable energy equipment. Its square body construction with silver-plated contacts provides dependable electrical performance and long service life in demanding operating environments.
Featuring a 400 A current rating and a 690 V AC IEC / 700 V AC UL voltage rating, the S302236 delivers rapid fault interruption with a high breaking capacity, helping protect valuable semiconductor equipment from catastrophic failure.
Key Advantages
- Ultra-fast aR semiconductor protection fuse for power electronic equipment.
- 400 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- High interrupting capacity for dependable short-circuit protection.
- Square body design with long slotted blade terminals.
- Low let-through energy helps minimise semiconductor damage.
- Suitable for OEM machinery, automation systems and industrial power conversion.
Key Features
- Mersen Protistor® Size 32 semiconductor fuse.
- 400 A rated current.
- 690 V AC IEC / 700 V AC UL operating voltage.
- aR ultra-fast operating characteristic.
- Square body construction with long slotted blade terminals.
- Integrated striker indicator for fuse status indication.
- Silver-plated contacts for optimum electrical conductivity.
- Designed specifically for semiconductor protection.
Reliable Protection for Power Electronics
The Mersen S302236 is engineered to clear high fault currents rapidly before they can damage expensive semiconductor devices. Its ultra-fast operating characteristics and low I²t performance make it an excellent choice for protecting modern power conversion equipment.
Widely specified by machine builders, panel manufacturers and automation engineers, the Protistor® range delivers dependable protection for critical industrial applications where reliability and performance are essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and inverters.
- UPS systems.
- Renewable energy power conversion equipment.
- Industrial automation systems.
- Semiconductor power supplies.
- OEM electrical control equipment.
