Page top


Omron uses cookies to improve your experience on this website. By continuing to use the website, you hereby agree to our Privacy and Cookie Policy

Lead Contents

Power Controller: Calorific Value of G3PX

FAQ No. FAQ01994

Primary Contents


How much heating value flows from the Electrical Regulator "G3PX"?


When the G3PX turns ON and a load current flows, a residual voltage is produced on the switching element.

The heating value will be obtained from the following formula.


Case of the G3PX-220EUN (with rated currents of 20A)
VRMS (residual voltage)=1.6V (output ON voltage drop in the brochure)

If the power consumption is indicated as P:
P=20A x 1.6V
This is the power consumption of the G3PX.

In terms of calorie 1cal/s equals 4.19W, therefore:

The residual voltage means the voltage lost inside the semiconductor when it turns ON.