Siemens fusible NH 50 A 00 (3NE8 017-1)

In industrial power distribution, protecting cables and lines from overload and short circuits is critical. The Siemens NH fuse 3NE8 017-1 is a 50 A fuse in size NH00, rated for 690 V AC and 250 V DC, with operating class gG. It is used in low-voltage distribution systems, motor control centers, and feeder circuits where reliable breaking capacity is required.

Key specifications

• Rated current: 50 A
• Rated voltage: 690 V AC / 250 V DC
• Operating class: gG
• Fuse size: NH00
• Breaking capacity: 120 kA at 690 V AC, 40 kA at 250 V DC
• Power loss: 5.5 W
• Body material: Ceramic
• Mounting type: NH fuse base
• Number of poles: 1
• Frequency: 50/60 Hz
• Ambient operating temperature: -20 to +50 °C
• Storage temperature: -50 to +80 °C
• Insulation voltage: 690 V
• Application: Cable and line protection
• Standard: IEC 60269-2
• Product series: SITOR
• Indicator type: Without indicator

Why choose it

The fuse offers high breaking capacity for demanding industrial environments, with a ceramic body for durability and reliable performance across a wide temperature range. Its gG operating class ensures full-range protection for cables and lines.

Ideal use cases

• Protection of distribution feeders in industrial plants
• Motor control center incoming protection
• Backup protection for circuit breakers
• Protection of cables and busbars in low-voltage switchgear

Good to know

The fuse is designed for use with NH fuse bases and is part of the SITOR product series. It complies with IEC 60269-2 for low-voltage fuses.