Knife fuse link NH000 double indicator non-insulated holder aM 6A 690VAC LNH000006M6A

Fuse links – protection of installations and devices

NH000 knife fuse insert is an element used to protect electrical circuits against overload and short circuit. Model LNH000006M6A, with a rated current of 6A and a voltage of 690VAC, finds application in industrial installations and public buildings. It is characterized by high reliability and a fast reaction to short-circuit current.

Characteristics and application

This insert is designed to protect electric motors – its aM characteristic (indicating motor protection) ensures appropriate selectivity and allows for safe starting of devices with a motor, tolerating short-term inrush currents. The operation indicator (double) facilitates visual identification of a blown fuse, which significantly speeds up the location and removal of failures.

Advantages in practice

• Motor protection: The aM characteristic provides effective protection of electric motors against overload and short circuit, minimizing the risk of damage and downtime.
• Fast fault identification: The double operation indicator allows for quick location of a blown fuse without the need to disassemble the housing. This saves time and costs associated with repair.
• Versatility: The rated voltage of 690VAC makes the insert compatible with a wide range of electrical installations.
• High quality workmanship: Hager fuses are a guarantee of reliability and long life, which translates into safety and continuity of installation operation.
• Compliance with standards: The insert meets the requirements of IEC 60269 standards, confirming its safety and effectiveness.
• Compact dimensions: The NH000 size allows for mounting in standard fuse holders, even in limited space.

Construction and parameters

The insert is made of high-quality materials, ensuring durability and resistance to environmental conditions. The power loss at the rated current is 0.3W – this is a typical value for this type of protection. The lack of metal-insulated grips (IMGL) means that caution must be exercised during replacement, but allows for use in specific installation configurations. The rated short-circuit breaking capacity Icn is 80kA according to IEC 60898-1 – this is an important parameter determining the fuse's ability to interrupt short-circuit current without damage.