Relay coil current calculator (from coil power and voltage)

[to-calculator-info][/to-calculator-info]

[calculator]

[calculator-input name=“u” label=“coil voltage” unit=“V”][/calculator-input] [calculator-input name=“p” label=“coil power” unit=“W”][/calculator-input]

[calculator-expression name=“i” formula=“p/u” unit=“A”]

[calculator-output name=“coil current” unit=“W”] A relay coil with <%= format(u, “V”) %> dissipating <%= format(p, “W”) %> has coil current of <%= format(i, “A”) %> [/calculator-output]

[/calculator]

$$I_{\text{coil}} = \frac{P_{\text{coil}}}{U_{\text{coil}}}$$