Fuse link - NH1 gG 200A/690V - time-lag 004184317

NH Fuse Links – Reliable Installation Protection

The NH1 gG 200A/690V fuse link is an element used to protect electrical installations from the effects of overloads and short circuits. Designed for both industrial applications and public buildings, it ensures safe and stable operation of electrical circuits. The construction and parameters of the fuse link comply with PN-93/E-06160 (gF), PN-IEC-269 and VDE 0636 standards, which guarantees its high quality and reliability.

Construction and characteristic features

The fuse link is made of high-quality materials, such as steatite (body) and silver-plated brass (knife contacts). The body is filled with quartz sand of a special granulation, which affects the high short-circuit breaking capacity – up to 100 kA at 690V AC. This ensures that the fuse link effectively interrupts the circuit in the event of a failure, minimizing the risk of damage to connected devices and preventing fires. An important element is the dual operating indicator – a red eye on the ceramic body and a springy plate on the top cover – which facilitates quick identification of a blown fuse. This system provides good visibility of the fuse link's operating status in both fuse bases and disconnectors.

Application and benefits

NH fuse links are widely used in:

• Electrical switchboards: as a protective element for individual circuits.
• Motor power circuits: protecting them against overloads and short circuits.
• Industrial installations: ensuring the safety of machines and equipment.
• Public buildings: guaranteeing protection against electrical failures.

Using this specific fuse link (NH1 gG 200A/690V) is particularly beneficial due to:

• Rated current 200A: allows protection of circuits with higher current draw.
• Rated voltage 690V AC: allows use in high-voltage installations.
• gG characteristic: provides full-range protection against overloads and short circuits, which is important for ensuring the long-term reliability of the installation.
• AC voltage type: dedicated to alternating current circuits.
• Combined indicator (dual): facilitates quick identification of a blown fuse, reducing installation downtime.
• No metal insulated grips (IMGL): standard construction ensuring compatibility with most fuse bases.

By choosing this fuse link, you are investing in the safety and reliability of your electrical installation.