Siemens SITOR Fuse Link with Blade Contacts NH3 850A gR – 3NE1448-2
The Siemens 3NE1448-2 is a SITOR semiconductor protection fuse link with blade contacts, designed in NH3 size for high-speed 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 provides rapid fault interruption to minimize damage caused by short-circuit currents in power electronic systems.
It is widely used in industrial automation systems, converter panels, drive systems, and heavy-duty semiconductor applications, where dependable and extremely fast protection is essential.
Key Features:
• Siemens SITOR semiconductor protection fuse
• Part Number: 3NE1448-2
• NH3 fuse size with blade contacts
• Rated current: 850A
• Utilization category: gR (full-range semiconductor protection)
• Rated operational voltage: 690V 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 mounting in NH fuse bases and switch disconnectors
• High thermal and electrical endurance
• DIN / IEC compliant industrial fuse design
|
Parameter |
Specification |
|
Product Series |
Siemens SITOR |
|
Part Number |
3NE1448-2 |
|
Product Type |
Semiconductor Protection Fuse Link |
|
Fuse Size |
NH3 |
|
Rated Current |
850A |
|
Utilization Category |
gR |
|
Rated Voltage |
690V AC |
|
Breaking Capacity |
100kA |
|
Contact Type |
Blade contacts |
|
Indicator Type |
Front indicator |
|
Mounting Type |
NH fuse base mounting |
|
Power Loss |
76W |
|
Net Weight |
Approx. 1.19 kg |
|
Application |
Semiconductor protection, VFDs, UPS systems, converters |
|
Standard Compliance |
IEC / DIN EN 60269-1 |
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