Why Choose the Mersen C301072 High-Speed Semiconductor Fuse?
The Mersen C301072 is a Protistor® Size 32 high-speed semiconductor fuse engineered to provide maximum protection for today's power conversion equipment. Designed specifically for safeguarding IGBTs, thyristors, diodes and other semiconductor devices, it delivers ultra-fast fault interruption with low let-through energy to minimise damage during short-circuit conditions.
Manufactured with precision die-cut fuse elements embedded in solidified sand, silver-plated contact surfaces and non-magnetic hardware, the C301072 offers exceptional current-limiting performance and a high interrupting capacity. An integrated striker indicator enables simple fuse status monitoring and optional operation of a microswitch for remote indication.
With a 1250 A current rating, 550 V AC IEC / 600 V AC UL voltage rating and 200 kA breaking capacity, the Mersen C301072 is ideal for heavy-duty industrial drives, UPS systems, renewable energy converters and large power conversion installations requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor fuse for critical power electronics.
- 1250 A current rating for high-power industrial applications.
- 550 V AC IEC / 600 V AC UL rated voltage.
- Low let-through energy helps minimise semiconductor damage.
- 200 kA AC breaking capacity for exceptional fault protection.
- Integrated striker indicator for maintenance and remote monitoring.
Key Features
- Mersen Protistor® Size 32 semiconductor protection fuse.
- Catalogue number A060UD32LI1250.
- 1250 A current rating.
- aR ultra-fast operating characteristic.
- Long slotted blade terminals.
- Silver-plated copper contact surfaces.
- Integrated striker indication.
- Designed for protecting IGBTs, SCRs, thyristors and diode modules.
Reliable Protection for Industrial Power Electronics
The Protistor® Size 32 range has been developed to provide state-of-the-art protection for semiconductor devices operating in demanding industrial environments. Its current-limiting characteristics reduce thermal stress and fault energy, helping extend equipment life while improving operational reliability.
The Mersen C301072 is widely suited to industrial motor drives, rectifiers, inverters, UPS systems and renewable energy converters where dependable protection of expensive semiconductor components is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control equipment.
- Power converters and inverters.
- UPS and backup power systems.
- Renewable energy converters.
- Protection of IGBT, SCR and diode modules.
