Fuse link - NH4a gG 1600A/500V - time-lag 004116120

NH Fuse Links – Reliable Installation Protection

NH knife fuse links are a proven element of electrical protection, designed to protect against the effects of short circuits and overloads. The design and electrical parameters of these fuse links comply with PN-93/E-06160 (gF), PN-IEC-269 and VDE 0636 standards, which guarantees their reliable operation. The NH4a gG 1600A/500V model is distinguished by its high current-carrying capacity and short-circuit breaking capacity, reaching 120kA.

Construction and characteristic features

The fuse link is designed for durability and efficiency. The body is made of durable steatite, which provides thermal stability. Silver-plated knife contacts ensure low transition resistance and minimize power losses. Aluminum covers protect against corrosion, and precise filling with quartz sand guarantees high breaking capacity and stability of electrical parameters. This model has a double indication of operation – a red eye on the ceramic body and a springy plate on the top cover, which facilitates quick identification of a blown fuse. Additionally, the indicator on the top cover allows cooperation with the NVS 5 microswitch for remote signaling of the fuse link status.

Application and benefits

The NH4a gG 1600A/500V fuse link is used in industrial installations where protection against overloads and short circuits with high current is required. The gG characteristic (full-range) makes it a universal solution for protecting cables and equipment. Thanks to the high current-carrying capacity (1600A), it is ideal for circuits with high power demand or with devices generating high starting currents. Using this fuse link translates into increased installation safety and minimized risk of failures caused by overloads or short circuits. It is worth remembering the compatibility with fuse bases and disconnectors equipped with signaling microswitches.