BK/HTB-32-R Datasheet/PDFFuseholders
Fuseholders are electrical safety components that are used to encapsulate and protect certain types of electrical fuses. They are primarily found on low-voltage main electrical lines, distribution boards,and consumer socket outlets. Among them, BK/HTB-32-R fuseholder is one of the most popular types. Let\'s dive into its application field and working principle.
Applications of BK/HTB-32-R
BK/HTB-32-R fuseholder is designed for single-end type fuse links, e.g. BK/HTA-2B/2D fuse link. It is suitable to be applied on AC 50Hz, rated operating voltage of 660V with rated current of 6A-50A and as overload and short circuit protection in power distribution circuit. The average life performance of BK/HTB-32-R could reach more than 10,000 operations. What\'s more, its three-position switch structure features 360 degree rotary handle to switch among off, short circuit, and overload. BK/HTB-32-R also offers various outputs such as external seal box, miniature plug-in terminal, and cable output.
Working Principle of BK/HTB-32-R
The fuse holder is mainly composed of an insulation material, a contact and a conductor. When the current goes through the fuse link, an arc appears due to the action of the contact. Meanwhile, the insulation material does not conduct electricity. Therefore, the arc will be in an isolation chamber. At a certain arc extinguishing time, the arc gradually disappears, and so does the current. The fuse link can be replaced after the arc extinguishing.
As for the performance parameters of BK/HTB-32-R, its insulation grade can reach IP20 and contact point pressure is 5600N when the switch is activated. Its mechanical and electric life can reach more than 10,000 operations. It also has great contact resistance when its contact pressure is 6 times or more than 6 times higher.
In conclusion, BK/HTB-32-R can be applied in many scenarios of low-voltage main electrical lines, distribution boards, and consumer socket outlets. Therefore, it is widely used in power distribution system. With excellent performance parameters mentioned above, it ensures safe and reliable operation.