LA70QS3004

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The LA70QS3004 fuse is a specialty fuse that is commonly used in electrical applications. It is designed specifically for over-current protection and is commonly used in appliances, electronic components, and power supply systems. The main purpose of this fuse is to protect circuits from damage due to over-current, short circuit, and other abnormal current conditions. This type of fuse is also known as a slow-blow fuse since it is designed to open gradually over time when subjected to higher currents than its rated value.

The LA70QS3004 has a voltage rating of 300 Volts AC/DC and a current rating of 4 Amps. It is a time-delay fuse, meaning it will open gradually over time when the current exceeds its rated value. This allows extra protection to be provided for equipment and circuits that may require more time to respond to over-current conditions. The fuse is a cylindrical link with a glass shell containing a special thermal element designed to detect temperature. The thermal element melts slowly when the fuse is exposed to higher current than its rated value.

In addition to its current rating, the LA70QS3004 also has a breaking capacity rating. This rating refers to the amount of current that the fuse can safely interrupt. The breaking capacity of this type of fuse is lower than its current rating, so it is important to check the manufacturer documentation to ensure that the fuse breaking capacity is sufficient for the application. For instance, if the circuit that is to be protected has a possible fault current of 8 Amps, then the fuse would need to have a breaking capacity of at least 8 Amps.

When the LA70QS3004 fuse is subjected to over-current, the thermal element melts, allowing the contacts to separate. This interrupts the circuit and the current is prevented from flowing through the fuse. After the fault current has been cleared, the contacts can be re-clicked and the fuse is ready for reuse. The fuse must be replaced if it has opened during an over-current event, as the contacts may have been damaged by the fault current.

The LA70QS3004 fuse is a widely used specialty fuse in electrical applications. It is designed specifically for over-current protection and has a current rating of 4 Amps and a voltage rating of 300 Volts. It has a breaking capacity which is lower than its current rating, so it is important to check the manufacturer\'s specification to ensure that the breaking capacity of the fuse is sufficient for the application. The thermal element contained in the fuse melts slowly when the fuse is exposed to higher current than its rated value, and can be re-clicked if the fault current has cleared. The LA70QS3004 is a reliable and cost-effective way to protect electrical circuits from over-current damage.

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