External protection | Fuse type class J + semiconductor fuse

Semiconductor fuses only serve as short-circuit protection. A Class J fuse must always be connected in series for line protection. When using semiconductor fuses, be sure to use the exact type specified for the device:

Device

Fuse protection

Semiconductor fuse

Max. SCCR

AX8620

Class J
max. 25 A

Bussmann FWC-32A10F, 10x38 mm, type aR, 32 A

65 kA

AX8640

Class J
max. 50 A

Bussmann FWP-63A22F, 22x58 mm, type aR, 63 A

65 kA