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R-21 — Xr Mccb 10K 20K

Voltage Class
Xr Mccb 10K 20K
Interrupting kA
21
Breaker Type
Mccb 10K 20kA
Multiplying Factor (dimensionless)
1.11
Power Factor Pct (%)
21
Standard
IEEE Std 3004.5-2025
Xr Ratio (dimensionless)
4.86

Source: IEEE Std 3004.5-2025

xr_mccb_10k_20k — interrupting kA 21 · xr ratio 4.86 dimensionless · power factor pct 21 % · multiplying factor 1.11 dimensionless · standard IEEE Std 3004.5-2025 | Circuit Breaker Ratings | Engineering Database