Dual sensing fuse wire is used in Bay O-net fuse assemblies to protect distribution apparatus form damaging currents and to protect distribution systems from failed apparatus.
Dual sensing fuse wire not only secondary faults , excessive load currents and transformer fluid temperature. They will limit long-term transformer heating caused by overloads and high temperature environments
| Voltage | Maximum Single-Phase Interrupting Rating | |
| Cover Mount Assembly (rms asymmetrical) | Sidewall Mount Assembly (rms symmetrical) | |
| 8.3kV | 3000A | 3500A |
| 15.5kV | 1800A | 2500A |
| 23.0kV | 600A | 1000A |
| Continuous nominal current(A) | Reference No. |
| 6.3 | AH SMRS-6.3 |
| 10 | AH SMRS-10 |
| 16 | AH SMRS-16 |
| 25 | AH SMRS-25 |
| 40 | AH SMRS-40 |
| 50 | AH SMRS-50 |
| 63 | AH SMRS-63 |
| 100 | AH SMRS-100 |
| 140 | AH SMRS-140 |
