Cylindrical fuse insert CH-10 10x38mm gG 8A 500VAC LF308G

Protection of Low-Current Circuits in Industrial and Domestic Installations

The 10x38 mm cylindrical fuse cartridge is a key component for ensuring the safety of electrical installations requiring precise protection against overloads and short circuits. This model, designed for operation in AC networks up to 500 V, features a rated current of 8 A. Thanks to its gG characteristic (full-range protection), the device effectively responds to both prolonged overloads and sudden short-circuit current surges. It is a universal solution suitable for protecting supply lines to smaller loads, control circuits, or low-power installations.

Ceramic Construction and High Breaking Capacity

The fuse is made of ceramic, ensuring resistance to high temperatures generated during operation and mechanical durability. A key parameter for the installer is the rated short-circuit breaking capacity (Icn) of up to 120 kA. This means that even in the event of a severe short circuit, the element safely interrupts the circuit without risk of explosion or damage to adjacent components. The low power loss at rated current, amounting to just 0.75 W, results in minimal heating of the cartridge during normal operation, thereby increasing the overall energy efficiency of the system.

It is worth noting dimensional compatibility – the standard size 10x38 mm allows installation in most popular fuse holders available on the market. This ensures quick replacement of worn-out elements without the need to upgrade the entire distribution board.

Applications and Practical Operational Benefits

Thanks to the specific gG tripping curve and a rated voltage of 500 VAC, this cartridge is suitable for numerous scenarios:

• Cable protection: Prevents overheating of cables in circuits with small cross-sectional areas.
• Equipment protection: Ideal for safeguarding low-power motors, control transformers, or automation systems.
• Versatility: Suitable for both industrial distribution boards (400/500 V) and single-family home installations (230 V).

Key electrical data can be summarized as follows: rated current is 8 A at a working voltage of 500 V AC. The device offers full-range protection (gG) and a high short-circuit breaking capacity of 120 kA. During continuous operation, power loss does not exceed 0.75 W, minimizing energy losses. Physical dimensions comply with the standard at 10x38 mm, and the body is made of ceramic to ensure thermal durability.

For professionals, packaging is also important – cartridges are typically supplied in sets of 10 pieces, facilitating the planning of service spare parts and reducing the frequency of orders for small components. The absence of a tripping indicator (standard for this product class) means that operation is indicated by the physical interruption of the fusible element, requiring visual inspection or the use of a continuity tester during diagnostics.