Siemens SENTRON NH Fuse Link, Size NH00, gG, 100 A, 500 V AC / 250 V DC, Blade Contacts 3NA68307

The Siemens SENTRON 3NA68307 NH fuse link stands out with its dual AC/DC rating, making it a versatile choice for industrial circuits that require reliable protection on both 500 V AC and 250 V DC systems. Its compact NH00 size delivers a full 100 A breaking capacity in a space-saving form factor, ideal for crowded distribution boards.

Highlights

• Operating class gG for general-purpose overload and short-circuit protection
• High breaking capacity: 120 kA AC and 25 kA DC
• Blade-type contacts for secure NH fuse holders
• Wide operating temperature range from -20 °C to 50 °C

In daily use

This fuse link is engineered for continuous industrial duty. At rated current, it dissipates only 10.5 W per pole, keeping thermal stress low in densely packed panels. The NH00 size allows quick replacement without special tools, reducing downtime during maintenance. With no indicator, it relies on external monitoring or routine inspection, which suits installations where remote status detection is already in place.

Full specifications

• Product type: NH fuse link
• Fuse size: NH00
• Operating class: gG
• Rated current: 100 A
• Rated voltage AC: 500 V
• Rated voltage DC: 250 V
• Breaking capacity AC: 120 kA
• Breaking capacity DC: 25 kA
• Power loss at rated current: 10.5 W
• Ambient operating temperature: -20 °C to 50 °C
• Mounting: Blade type contacts
• Number of poles: 1
• Manufacturer series: SENTRON

Final note

Built to IEC 60269-2, this fuse link delivers dependable protection for motor feeders, transformers, and distribution lines in demanding industrial environments.