Ferraz Shawmut FR14UB69V50T M078050 Semiconductor Fuse, 50 A, Trip Indicator
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Ferraz Shawmut FR14UB69V50T is a Protistor 14 x 51 ferrule semiconductor fuse with trip-indicator, identified with reference number M078050 and designation 6.921 CP URGB 14.51/50. It is rated 50 A, aR class, with 200 kA tested breaking capacity at 690 V and a minimum trip-indicator operating voltage of 20 V.
| Brand | Ferraz Shawmut |
| Catalog Number | FR14UB69V50T |
| Reference Number | M078050 |
| Designation | 6.921 CP URGB 14.51/50 |
| Fuse Type | Protistor ferrule semiconductor fuse |
| Body Size | 14 x 51 mm |
| Current Rating | 50 A |
| Voltage Rating | 690 VAC; operating voltage limited to 600 V for model with blown fuse trip-indicator |
| Class | aR |
| Standards Reference | IEC 60269.1 and IEC 60269.4; VDE 636-23 |
| Tested Breaking Capacity | 200 kA at 690 V |
| Pre-arcing I²t at 1 ms | 480 A²s |
| Total Clearing I²t at 660 V | 2550 A²s at Ip ≤ 30 IN; 2070 A²s at Ip > 30 IN |
| Watts Loss | 7 W at 0.8 IN; 13 W at IN |
| Trip Indicator | With trip-indicator; minimum operating voltage 20 V |
| Weight | 18 g |
This fuse is typically used for protection of power semiconductors in AC power electronics, drive systems, converter assemblies, and industrial circuit protection applications requiring aR class high breaking capacity fuse protection with trip-indicator functionality.
Apexon Supply supports B2B sourcing, replacement review, and technical alignment for Ferraz Shawmut FR14UB69V50T M078050 semiconductor fuses. Buyers should verify current rating, voltage rating, fuse class, body size, trip-indicator requirements, reference number, and equipment requirements before replacement.
Send the MPN FR14UB69V50T, reference number M078050, required quantity, and application requirements to request RFQ support. Most qualified RFQs receive a response or quote within 12 hours.
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