Yueqing Feeo Electric Co.,Ltd

We are a professional solar electrical products manufacturer

Address: Keaisi Road, Xiangyang Industrial zone , Yueqing, Zhejiang,China.

Postal Code:325604

Manager: Terence 

Wechat: feeoelectric


Tel: 0086-577-61800010


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Feeo Electric Tells You What Is An ‘’a‘’ Class Fuse?

Yueqing Feeo Electric Co.,Ltd | Updated: Feb 23, 2017

An “a” class fuse or partial range breaking capacity fuse, also known as a ‘back up’ fuse, is a LV current limiting fuse capable of breaking under specified conditions all currents between the lowest current K²In indicated on its time current characteristics and its related breaking capacity. “a” class fuses are generally used to provide short circuit protection. Where protection is required against over currents less than K²In (small over currents, overloads), these fuses either need to be used in conjunction with another suitable switching device or “g” class fuses must be used instead.