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Speclore

circuit disjoncteur et fusible dimensionnement

Circuit breaker selection, short circuit current, et protective device coordination.

circuitbreakersizingCalculatrice

Overview

Engineering reference data for Circuit Breaker and Fuse Sizing in electrical engineering.

Key Formulas

Ohm's Law

V=IRV = IR

Voltage = Current × Resistance.

Power

P=VI=I2R=V2/RP = VI = I^2R = V^2/R

Electrical power.

Energy

E=PtE = Pt

Energy = Power × Time.

Variables

Symbol Description Unit
VV Voltage V
II Current A
RR Resistance Ω
PP Power W

References