Fuse link - NH3 gG 500A/500V - time-lag 004186231

NH Fuse Links – Reliable Installation Protection

The NH3 gG 500A/500V fuse link is an element designed to protect electrical installations from the effects of short circuits and overloads. It is a proven component, compliant with PN-93/E-06160 (gF), PN-IEC-269 and VDE 0636 standards. The fuse link is characterized by a time-delay tripping characteristic, which means it allows for short-term exceeding of the rated current without disconnecting the circuit – an ideal solution for devices with motors or other elements generating inrush currents during start-up.

Construction and Application

The NH3 fuse link is made in size NH3 and has a double tripping indicator – a red eye in the central part of the ceramic body and a spring-loaded plate on the top cover. This solution ensures easy and reliable identification of a blown fuse, both in the base and in the disconnector. This allows installers to quickly locate the damaged element and restore power, minimizing downtime. The rated short-circuit switching capacity of 120kA guarantees effective protection even in the event of high short-circuit currents.

Key Features and Benefits

• Time-delay characteristic (gG): Allows for momentary overloads without unnecessary circuit interruption, which is especially important for devices with motors or transformers.
• Double tripping indicator: Facilitates quick identification of a blown fuse, shortening repair time and minimizing downtime.
• High short-circuit breaking capacity (120kA): Provides effective protection against the effects of serious short circuits in the installation.
• Compliance with standards: Guarantees safety and reliable operation in accordance with applicable standards.
• Made of high-quality materials: A steatite body and silver-plated brass knife contacts ensure durability and corrosion resistance.
• Wide range of applications: Ideal for protecting general-purpose cables and equipment in industrial installations and public buildings.
• Indicator compatible with remote signaling: Possibility of cooperation with a remote operation signaling system using the NVS 5 microswitch.

By choosing the NH3 gG 500A/500V fuse link, you are investing in reliable protection for your electrical installation, which will ensure its long-term and safe operation.