Mersen FR10GR69V30 Cylindrical Ultra-Fast Full-Range Fuse gR 690VAC 10x38 30A

The Mersen FR10GR69V30 is a high-performance cylindrical ultra-fast acting, full-range gR fuse engineered for the protection of sensitive electrical components. Measuring 10x38 mm, this fuse is specifically designed to safeguard semiconductors and power electronics in industrial environments. It operates at a rated voltage of 690VAC and supports a current of 30A, providing a robust solution for preventing damage from short circuits and overloads in demanding electrical systems.

Advantages

This fuse offers exceptional reliability due to its ultra-fast response time, which is critical for protecting modern power electronic devices that are highly sensitive to current surges. Its full-range gR protection capability ensures that both overload and short-circuit conditions are managed effectively within a single compact unit. The standardized 10x38 mm form factor allows for easy integration into existing fuse holders and electrical panels, making it a versatile choice for maintenance and new installations alike.

Suitable for

• Semiconductor protection
• Power electronics systems
• Industrial control panels
• Inverters and converters
• Battery energy storage systems

When it may not be suitable

This fuse is not intended for general-purpose residential electrical circuits or standard household appliances. It is specifically calibrated for high-speed semiconductor protection and may not provide the correct tripping characteristics for standard motor starting or general distribution circuits.

Key specifications

• Form factor: 10x38 mm
• Rated voltage: 690VAC
• Rated current: 30A
• Protection class: gR (full-range)
• Acting speed: Ultra-fast

How to use

The fuse should be installed into a compatible 10x38 mm fuse holder or disconnect switch designed for industrial applications. Ensure the power supply is completely disconnected before inserting or replacing the fuse to prevent electrical shock. Verify that the circuit current and voltage requirements match the specifications of the fuse to ensure proper operation and safety.

What to consider before purchase

• Verify the current and voltage requirements of your specific application
• Ensure compatibility with your existing 10x38 mm fuse holder
• Confirm that the gR protection class meets your equipment manufacturer's requirements

Usage recommendations

Always replace the fuse with one of the exact same type and rating to maintain the safety and integrity of your electrical system. Do not attempt to repair or bypass a blown fuse.