Skip to main content
Speclore

Circuit breaker et fuse 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

SymbolDescriptionUnit
VVVoltageV
IICurrentA
RRResistanceΩ
PPPowerW

References