Fuse link - NH1 gG 224A/500V - time-lag 004184218

Knife fuse links – reliable installation protection

The NH1 gG 224A/500V fuse link is an element used to protect electrical installations against the effects of short circuits and overloads. It is a proven component, manufactured in accordance with PN-93/E-06160 (gF), PN-IEC-269 and VDE 0636 standards. Designed for operation in alternating current (AC) circuits with a voltage of 500V, it provides effective protection for devices and cables.

Construction and characteristic features

The fuse link is made of high-quality materials, such as steatite (body) and silver-plated brass (knife contacts), which guarantees thermal stability and good electrical conductivity. The aluminum cover provides corrosion resistance. It is distinguished by a double operating indicator – a red eye in the central part of the ceramic body and a springy plate on the top cover, which facilitates quick identification of a blown fuse. This signaling system is particularly useful in fuse disconnectors and bases, allowing for easy visual control of the fuse status.

Application and benefits

The NH1 gG 224A/500V fuse link finds application in a wide range of industrial and energy installations. It is characterized by a time-delay characteristic (gG), which means that it allows for short-term exceeding of the rated current without disconnecting the circuit – this is particularly important when starting devices with electric motors, which generate high starting currents. This minimizes the risk of unnecessary shutdowns caused by temporary overloads.

• Wide range of applications: ideal for protecting cables and equipment for general use.
• High reliability: production in the EU guarantees high quality workmanship and compliance with European standards.
• Easy identification of a blown fuse: the double operating indicator facilitates quick fault diagnosis.
• Corrosion resistance: the aluminum cover protects against external factors.
• Compliance with standards: ensures safety and proper operation of the installation.
• Time-delay characteristic: allows for momentary overloads without disconnecting the circuit, which is important when starting motors.
• Rated breaking capacity AC: up to 120kA at 500V AC provides effective protection against the effects of short circuits with high energy.