Cylindrical fuse insert CH-10 10x38mm gG 4A 500VAC LF304G

Protection of Low-Current Circuits in Industrial and Domestic Installations

The 10x38 mm cylindrical fuse cartridge is a key component protecting electrical installations against the effects of overloads and short circuits. This model, designed for operation in alternating current (AC) circuits with a rated voltage of 500 V, provides precise protection for circuits requiring a rated current of 4 A. Thanks to its gG (general-purpose) tripping characteristic, this element responds to both long-term overloads and short-duration short circuits, making it a universal solution in distribution boards, constructional switchboards, and industrial applications.

Ceramic Construction and High Breaking Capacity

The fuse is made of ceramic, ensuring resistance to high temperatures generated during operation and durability in harsh environmental conditions. Its compact dimensions (10 mm diameter, 38 mm length) allow installation in standard CH-10 type fuse holders. A key safety parameter is the short-circuit current breaking capacity, which in this model reaches 120 kA. This means that even with very high short-circuit currents occurring in modern power networks, the cartridge safely interrupts the circuit without risk of explosion or damage to adjacent components.

It is worth noting the low power loss at rated current, which amounts to only 0.7 W. This parameter translates into minimal heating of the element during normal operation, increasing the energy efficiency of the entire installation and reducing the risk of overheating contacts in the fuse holder. The absence of an indication feature (such as "glass" or "indicator pin") means that the fuse status must be checked visually after removal or using external indicators mounted in the holder – this is a standard solution for this type of ceramic cartridge.

Applications and Compliance with Standards

The product meets the rigorous requirements of the IEC 60269 standard for the gG category (full-range protection of conductors and equipment). This guarantees compliance with European electrical safety standards. Therefore, the cartridge is suitable for:

• Protection of control transformers and control circuits.
• Safeguarding low-current lighting circuits.
• Protection of low-power electric motors and their starting circuits (in combination with the appropriate time-current characteristic).
• Applications in main distribution boards as secondary or auxiliary protection.

For installers, this means easy installation in existing Hager modular systems and other manufacturers' systems using the CH-10 standard. The product is supplied in bulk packaging (typically 10 pieces), facilitating logistics for larger construction projects or industrial installation modernizations. Choosing this model guarantees reliable protection where precision at low current values and a high level of safety during short circuits are required.