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Specifications
| Application Category | URD | |
| Body Height | 91mm | |
| Body Length | 47.5mm | |
| Current Rating | 450A | |
| Fixing Centres | 77mm | |
| Fuse Size | 31 | |
| Fuse Speed | FF | |
| Fuse Standard | DIN 110 | |
| Overall Length | 110mm | |
| Tag Width | 25mm | |
| Voltage Rating | 700 V |
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Protistor® Fuses DIN 80/DIN110
HBC FF (aR) type fuses featuring ultra-rapid operation for semiconductor protection
Breaking capacity 200kA
Voltage rating 690Vac
Striker for micro-contact actuation
Conforms to VDE636-23 and IEC269-4
'TTF' threaded fixing studs
Note
In the table below I²t is the pre-arcing value; I²t Total is the clearing value at 690Vac

