Fuse link - NH2C gG 160A/400V - time-delay 004185116

Knife fuse links – reliable installation protection

Knife fuse links NH are a proven element of electrical protection, protecting against the effects of short circuits and overloads. Their construction and electrical parameters comply with PN-93/E-06160 (gF), PN-IEC-269 and VDE 0636 standards, which guarantees their reliable operation in demanding industrial conditions. This model, designated as NH2C gG 160A/400V, combines a proven design with modern solutions.

Construction and characteristic features

The fuse link has been designed with durability and functionality in mind. The body is made of high-quality steatite – a thermally stable material resistant to high temperatures generated during current flow. The silver-plated brass knife contacts ensure excellent electrical conductivity and minimize the risk of corrosion. Aluminum covers provide additional protection against external factors. The link is filled with quartz sand of a special granulation, which translates into a high short-circuit breaking capacity – up to 120 kA – and stable electrical parameters over time.

Particular attention is paid to the dual operating indicator: a red eyelet located centrally on the ceramic body and a springy plate on the top cover. This solution ensures easy and quick identification of a blown link, both in the fuse base and in the disconnector. Additionally, the indicator in the upper cover allows cooperation with the NVS 5 microswitch, which enables remote signaling of the link operation – important in automatic monitoring and control systems.

Application and benefits

The NH2C gG 160A/400V fuse link is designed to protect cables and devices with a time-delay characteristic (gG). This means that it allows for short-term exceeding of the rated current without disconnecting the circuit – which is particularly important when starting devices with electric motors or other loads with high starting current. The rated operating current of this link is 160A at 400V AC. The total Joule integral of switching is 304000 A²s, and the arc-fault integral is 42700 A²s, which proves its high energy efficiency. Power losses amount to 11.7W.

• Versatility: Suitable for protecting various electrical installations.
• High reliability: Compliance with IEC 60269-1 and IEC 60269-2 standards guarantees safe use.
• Easy status identification: The dual operating indicator facilitates quick location of a damaged link.
• Remote signaling capability: Compatibility with the NVS 5 microswitch enables integration with monitoring systems.
• Durable construction: The use of high-quality materials ensures a long product life.