External fuse protection
Fuse type gG(A)
Use mains fuses of the operating class “gG(A)” according to IEC 60269 or automatic circuit-breakers with the characteristic “C”.
Device | Fuse type | max. SCCR |
|---|---|---|
AX8620 | gG(A) or Automat "C" max. 25 A | 5 kA |
AX8640 | gG(A) or Automat "C" max. 50 A | 5 kA |
AX8525 | gG(A) or Automat "C" max. 100 A | 10 kA |
AX8540 | gG(A) or Automat "C" max. 100 A | 10 kA |
Fuse type gG(A) + semiconductor fuse
Semiconductor fuses only serve as short-circuit protection. A mains fuse gG(A) 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 type | Semiconductor fuse | max. SCCR |
|---|---|---|---|
AX8620 | gG(A) or Automat "C" max. 25 A | Bussmann FWC-32A10F, 10x38 mm, type aR, 32 A | 65 kA |
AX8640 | gG(A) or Automat "C" max. 50 A | Bussmann FWP-63A22F, 22x58 mm, type aR, 63 A | 65 kA |
Fuse type Circuit breaker
The acceptance test was carried out with Siemens type 3VA5112-6ED31-0AA0. Alternatives to the above types may also be used.
Device | Fuse type | max. SCCR |
|---|---|---|
AX8525 | Circuit breaker max. 100 A | 65 kA |
AX8540 | Circuit breaker max. 100 A | 65 kA |
Protection 24 V DC
Device | Protection |
|---|---|
AX8620 | 20 A |
AX8640 | 20 A |
AX8525 | 20 A |
AX8540 | 20 A |