LA120X1/21

LA120X1/21 application field and working principle

The LA120X1/21 is an electrical specialty fuse that is suitable for controlling short circuit protector current protect electronic circuit and equipment.

The typical application field of the LA120X1/21 is for power supply equipment, motor protection, converter and rectifier, welding machine, sanitary ware and industrial electrical circuit and equipment.

The fuse features a high breaking capacity and a low calibration current. These features allow it to be widely used in low voltage applications, such as the consumer, industrial and medical fields. In addition, it can also be used in high voltage applications, such as the safety and terminal protection in the automotive industry.

Working Principle

The working principle of the LA120X1/21 is based on its fuse body, which is equipped with a calorific tube, a fuse link, a calorific tube, and a body. The fuse link is heated up when over-load or short-circuit current runs through the fuse body and will quickly break down and then cut off the excessive current.

The calorific tube acts like a heat sink and releases the heat generated from the fuse link. The fuse body helps to ensure the structural integrity of the fuse and also provides a degree of protection against dust, water and other foreign objects which can potentially damage the fuse link.

Advantages

The LA120X1/21 has many advantages that makes it suitable for use in a wide range of applications. Firstly, the high breaking capacity and low calibration current of the fuse make it suitable for both high and low voltage applications, so it can be used in applications where circuit protection is required. Secondly, the fuse is made of a durable material that provides a high level of protection and longevity. Thirdly, the fuse is also relatively small in size, so it can be used in tight spaces.

Fourthly, the LA120X1/21 is highly reliable and is UL and CUL certified, which means that it meets the highest safety standards and will provide a reliable level of protection to the equipment and circuit.

Lastly, the LA120X1/21 has a low reaction time, which means it can quickly interrupt over-load or short-circuit currents, allowing equipment and circuits to be protected.