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Fuse ufast aR 700VAC/DC 250A blade cc90-109mm

CBFWP-250A

High speed fuse for protection of semiconductor relays, softstarters, AC variable speed drives, rectifiers etc. Since semiconductor have low thermal capacity, the protective device must react very fast. Can be installed in compact fuse disconnectors. Class aR, short-circuit protection only.

Pack size: 1/package
In stock (0 pcs)
Estimated delivery time, if not in stock: 42 days

Rated voltage
700VAC/DC
Rated current
250A
Utilization class
aR
Breaking capacity
200kA AC/10kA DC
Size
Contact blade L129mm/cc90-109mm
I²t, pre-arc/total
10500/42500 A²s at 700VAC
Power loss
48W
UL approval
UL recognized JFHR2, file E91958
CSA approval
CSA comp. Class1422-30, file 57787
Weight, each
0,475kg
Manufacturer's part number
FWP-250A

Fuse block 1P 700V 400A modular IP00
Fuse block 1P 700V 400A modular IP00
CBBH-1133
Pack: 1 pcs
Info

High speed fuses

For semiconductor protection. North American high speed fuses have normally a round body and contact blades for bolt-on fixing.

The fuses are normally UL and CSA approved as Application limited OCPD, ie only approved for specific applications according to NEC, National Electrical Code. One type of high speed fuse, approved for Branch circuit protection is available, see North American fuses class J.