Class CC fuses are used for “branch circuit protection".
The enclosed fuse holders are designed and tested to comply with the US National Electrical Code NEC 210.20(A). This means that when subject to continuous operation, only 80 % of the rated current is permissible as operational current.
An operational current of 100 % of the rated current (30 A) is only permissible short-time.
The devices are prepared for the inscription labels of the ALPHA FIX terminal blocks 8WH8 120-7AA15 and 8WH8 120-7XA05.
There are three different series:
For class CC compact fuse holders for motor starter combinations see: Fuse systems → Cylindrical fuse systems → Fuse holders in sizes 10 38 mm and Class CC.