Bussmann FWP-1A14F Eaton series FWP high speed fuse, 700 Vac/dc, 1A, 200 kAIC Vac, 50 kAIC at 800 Vdc, Non Indicating, High speed fuse, Ferrule end X ferrule end

That is exactly what it is built for. The FWP-1A14F is a high speed fuse with utilization category aR, accompanied semiconductor protection, so it clears fast enough to protect diodes, SCRs and IGBT modules. aR means it is not a full-range fuse: it handles short circuits, not sustained overloads, so the circuit still needs separate overload protection from the drive electronics or a thermal device.

Yes, it is rated AC/DC at 700 V. The interrupting rating differs by supply: 200 kA on AC and 50 kA at 800 Vdc. So on a DC bus you still have substantial fault clearing capability, which is what matters on a drive link where available fault current is set by the capacitor bank.

It is a cylindrical ferrule end x ferrule end fuse measuring 51 mm long by 15 mm across, so it drops into a standard 14 x 51 mm cylindrical fuse holder or ferrule clips. There are no bolt holes or blade tags on it, so a bolted-tag base will not accept it.

Pre-arcing (melting) I2t is 0.04 and total clearing I2t is 0.41 A2s. Compare the clearing value against the I2t withstand of the semiconductor you are protecting; the device rating has to exceed 0.41 for the fuse to be the one that goes first.

No. It is non indicating, with no pop-up indicator and no provision for a striker or microswitch. If you need remote blown-fuse annunciation, take it from a voltage or current monitor downstream rather than from the fuse itself.

Only within 45 to 62 Hz. The frequency rating runs from a 45 Hz minimum to a 62 Hz maximum, which covers 50 and 60 Hz mains but not 400 Hz aircraft or high frequency supplies. Note that applies to the supply frequency at the fuse, not the output frequency a drive produces downstream of it.

It is CSA Certified and CE Marked, which covers the paperwork for a Canadian panel and for CE declaration on export equipment.

Order it as Bussmann FWP-1A14F. Within the Eaton FWP series the number tells you the rating and body: 1A is the amp rating and 14F is the 14 mm diameter ferrule body. Larger FWP amp ratings move to bigger ferrule or bolt-down bodies, so an FWP fuse of another rating will not necessarily fit the same 14 x 51 holder.

Watt loss is 5.7 W at rating. On a small sealed control enclosure with several of these in a bank that figure belongs in your thermal calculation, and it is also why ferrule holders for high speed fuses should not be crowded or derated by poor clip pressure.