Mersen D01 gG Fuse Link 4A 400VAC/250VDC

The Mersen D01 gG fuse link is a precision-engineered electrical protection device designed to safeguard circuits against overloads and short circuits. With a rated current of 4A, this component is suitable for both industrial and residential electrical systems operating at 400VAC or 250VDC. Its standardized D01 design ensures a secure fit in compatible fuse bases, providing consistent and reliable performance in demanding electrical environments.

Advantages

This fuse link offers exceptional reliability due to its high-quality construction and adherence to international safety standards. The gG characteristic ensures full-range protection, meaning it can safely interrupt both low-level overloads and high-level short-circuit currents. Its compact D01 size allows for efficient space utilization in distribution boards, while the robust materials used in its manufacture guarantee long-term operational stability and safety for connected equipment.

Suitable for

• Residential electrical distribution boards
• Industrial control panels
• Protection of lighting circuits
• Small motor control applications
• General purpose electrical circuit protection

When it may not be suitable

This fuse is not intended for use in circuits where the operating voltage exceeds 400VAC or 250VDC. It is also not suitable for applications requiring a different current rating or specific time-current characteristics other than the gG standard.

Key specifications

• Rated current: 4A
• Rated voltage: 400VAC / 250VDC
• Fuse size: D01
• Characteristic: gG (full-range protection)

How to use

To install the fuse, ensure that the power supply to the circuit is completely disconnected. Insert the fuse link into a compatible D01 fuse base or holder, ensuring it is seated firmly. Once installed, the fuse base cover or cap should be tightened according to the manufacturer's instructions to ensure proper contact and safety. Always verify that the circuit load does not exceed the 4A rating before restoring power.

What to consider before purchase

• Verify that the current rating of 4A matches your circuit requirements.
• Ensure your existing fuse base is compatible with the D01 size.
• Check that your system voltage does not exceed 400VAC or 250VDC.
• Confirm that the gG characteristic is appropriate for your specific application.

Usage recommendations

Always replace a blown fuse with one of the exact same rating and type. Never attempt to bypass or repair a fuse, as this poses a significant fire and safety risk.