Mersen 1B637.000000 NH Fuse-Link, Size 000, 20 A, 500 V AC, gG Class

The Mersen 1B637.000000 NH fuse-link is a high-quality industrial fuse designed for cable and line protection in industrial installations. With a rated current of 20 A and voltage of 500 V AC, it offers reliable overcurrent protection. The fuse size NH000 (size 000) ensures compatibility with standard NH fuse holders. Its gG operating class makes it suitable for general-purpose applications, providing full-range protection against overloads and short circuits.

Advantages

This NH fuse-link features a ceramic body and silver-plated copper contacts for excellent conductivity and durability. The top indicator allows for quick visual identification of a blown fuse, reducing downtime. With a high breaking capacity of 120 kA at 500 V AC, it ensures safe interruption of fault currents. The fuse complies with IEC 60269-1 and VDE 0636-2 standards, guaranteeing performance and safety.

Suitable for

• Industrial electrical panels and distribution boards
• Motor protection circuits
• Transformer protection
• General cable and line protection in commercial and industrial settings

Key specifications

• Fuse Type: NH Fuse-link
• Operating Class: gG (General Purpose)
• Rated Current: 20 A
• Rated Voltage (AC): 500 V AC
• Fuse Size: NH000 (Size 000)
• Breaking Capacity: 120 kA (at 500 V AC)
• Indicator Type: Top Indicator
• Standards Met: IEC 60269-1, VDE 0636-2
• Mounting Type: Blade Contact
• Body Material: Ceramic
• Contact Material: Silver-plated Copper
• Power Dissipation: 2.5 W
• Rated Frequency: 50/60 Hz
• Operating Temperature Range: -5°C to +40°C
• Product Series: NH gG
• Number of Poles: 1

Recommendations

For optimal performance, ensure that the fuse is used with compatible NH fuse holders and that the system's rated current and voltage do not exceed the fuse's specifications. Always replace a blown fuse with one of the same type and rating.