SITOR fuse link with slotted blade contacts NH1 350A aR - 3NE3231

Product Description

Siemens SITOR Fuse Link with Slotted Blade Contacts NH1 350A aR – 3NE3231

The Siemens 3NE3231 is a SITOR semiconductor protection fuse link with slotted blade contacts, designed in NH1 size for reliable protection of sensitive power semiconductor devices such as thyristors, diodes, converters, UPS systems, soft starters, and variable frequency drives (VFDs). This ultra-fast acting fuse ensures rapid interruption of fault currents, minimizing damage to critical electronic components during short-circuit conditions. 

It is widely used in industrial automation systems, converter panels, drive systems, and power electronic applications, where high-speed semiconductor protection is essential. 

Key Features:

• Siemens SITOR semiconductor protection fuse 

• Part Number: 3NE3231 

• NH1 fuse size with slotted blade contacts 

• Rated current: 350A 

• Utilization category: aR (accompanied semiconductor protection) 

• Rated operational voltage: 1000V AC 

• Ultra-fast acting fuse characteristic 

• Front-mounted fuse status indicator 

• High short-circuit breaking capacity: 100kA 

• Silver-plated blade contacts for reliable conductivity 

• Suitable for installation in LV HRC fuse bases and switch disconnectors 

• Compact LV HRC fuse design 

• High thermal and electrical endurance 

• Complies with IEC / EN 60269-1 standards