The NH000 is the narrowest frame in the NH blade‑fuse family, sharing the same blade length as NH00 but designed for 63 A circuits. The 3NA3822 delivers 120 kA breaking capacity at 500 V AC – the same extreme fault‑clearing performance as its larger counterparts, in a compact blade profile that fits tight distribution boards. Silver‑plated copper blades and a top‑mounted blown‑fuse indicator make it reliable and easy to service.

Reliable Protection for Main Distribution

• gG operating class: protects cables and busbars against overloads and short circuits – the standard choice for feeder circuits up to 63 A in industrial distribution.
• 120 kA breaking capacity (AC 500 V): safely clears fault currents close to the transformer, where lower‑rated fuses could fail.
• 500 V AC / 250 V DC dual rating: covers three‑phase distribution and DC control circuits with a single fuse type.

Design and Handling

• Ceramic body: withstands the thermal shock of a 120 kA interruption and provides controlled arc extinction.
• Silver‑plated copper blades: maintain a stable, low‑resistance contact over decades. Silver plating resists oxidation far better than bare copper.
• Top‑mounted blown‑fuse indicator: instantly visible which fuse has operated, speeding up fault‑finding in crowded panels.
• NH000 size: standard blade profile, fits all NH000 fuse‑switch disconnectors and bases.

Technical Specifications