Eti-Polam NH2 Fuse Link 350A gR 690V

The Eti-Polam NH2 fuse link is a robust industrial-grade electrical protection component designed for high-capacity power systems. With a rated current of 350A and a voltage rating of 690V, this device is engineered to provide precise protection for sensitive semiconductor equipment. Its gR characteristic ensures a fast and reliable response to short circuits and overload conditions, maintaining the integrity of electrical distribution networks and industrial machinery.

Advantages

This fuse link offers exceptional reliability in demanding industrial environments. The gR characteristic is specifically optimized for the protection of power semiconductors, providing a balance between fast clearing times and high breaking capacity. Its standardized NH2 size allows for seamless integration into existing fuse bases and distribution panels, ensuring compatibility and ease of maintenance in complex electrical setups.

Suitable for

• Semiconductor protection in power electronics
• Industrial power distribution networks
• Frequency converters and soft starters
• High-capacity electrical control panels

When it may not be suitable

This fuse is not intended for general-purpose domestic electrical circuits or low-voltage household applications. It is specifically calibrated for semiconductor protection and may not provide the correct tripping characteristics for standard motor protection or general cable overload protection.

Key specifications

• Rated current: 350A
• Rated voltage: 690V
• Fuse size: NH2
• Characteristic: gR

How to use

The fuse link should be installed into a compatible NH2 size fuse base or disconnect switch. Ensure that the power supply is completely isolated before attempting installation or replacement. The fuse must be inserted firmly into the contacts, ensuring proper alignment to prevent overheating or poor electrical connection. Always use appropriate insulated tools and personal protective equipment when handling high-voltage components.

What to consider before purchase

• Verify that the fuse base is compatible with NH2 size links
• Ensure the 350A rating matches your circuit load requirements
• Confirm that the gR characteristic is appropriate for your specific semiconductor protection needs
• Check the voltage rating of your system to ensure it does not exceed 690V

Usage recommendations

Regularly inspect the fuse contacts for signs of oxidation or heat damage. Replace the fuse immediately if it has been triggered by a fault, as internal components may be compromised even if the exterior appears intact.