Circuit Breaker Ratings: xr lvpcb fused
24 to 45
Circuit breaker ratings and application data per IEEE C37.06-2009 (medium/high-voltage power CBs) and IEEE Std 3004.5-2025 (low-voltage LVPCB and MCCB). Covers MV/HV preferred ratings (interrupting, TRV, close-latch), LV frame and trip-device ratings, LVPCB short-circuit ratings with and without instantaneous trip, X/R multiplying factors for fault-current derating, altitude derating factors, and MCCB electrical endurance operation counts.
| voltage class | interrupting kA | breaker type | multiplying factor (dimensionless) | power factor pct (%) | standard | xr ratio (dimensionless) |
|---|---|---|---|---|---|---|
| xr lvpcb fused | 24 | LVPCB fused | 1 | 24 | IEEE Std 3004.5-2025 | 4.05 |
| xr lvpcb fused | 25 | LVPCB fused | 1 | 25 | IEEE Std 3004.5-2025 | 3.87 |
| xr lvpcb fused | 26 | LVPCB fused | 1 | 26 | IEEE Std 3004.5-2025 | 3.71 |
| xr lvpcb fused | 27 | LVPCB fused | 1 | 27 | IEEE Std 3004.5-2025 | 3.57 |
| xr lvpcb fused | 28 | LVPCB fused | 1 | 28 | IEEE Std 3004.5-2025 | 3.43 |
| xr lvpcb fused | 29 | LVPCB fused | 1 | 29 | IEEE Std 3004.5-2025 | 3.3 |
| xr lvpcb fused | 30 | LVPCB fused | 1 | 30 | IEEE Std 3004.5-2025 | 3.18 |
| xr lvpcb fused | 35 | LVPCB fused | 1 | 35 | IEEE Std 3004.5-2025 | 2.68 |
| xr lvpcb fused | 40 | LVPCB fused | 1 | 40 | IEEE Std 3004.5-2025 | 2.29 |
| xr lvpcb fused | 45 | LVPCB fused | 1 | 45 | IEEE Std 3004.5-2025 | 1.98 |
What else is in Engineering Database
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators