Inductive loads can best be defined as anything with a magnetic coil, such as a motor, solenoid, or a transformer. Controlling an inductive load using our relay controllers requires the use of induction suppression capacitors. The purpose of this capacitor is to absorb the high voltages generated by inductive loads, blocking them from the contacts of the relay. Without this capacitor, the lifespan of the relay will be greatly reduced. Induction can be so severe that it electrically interferes with the microprocessor logic of our controllers, causing relay banks to shut themselves down unexpectedly. In the case of USB devices, customers may experience loss of communications until the device is reconnected to the USB port.
Easy to installAs you can see from the diagram above, an induction suppression capacitor is very easy to install. The capacitor should be located as close to the relay controller as possible, and is connected in parallel with the load you are trying to control. Induction suppression capacitors are NOT polarized, and may be used in either AC or DC applications.
Choosing the Right Capacitor
Choosing the correct induction suppression capacitor is simply a matter
of choosing the maximum voltage requirement of the device you are trying to
control. During checkout you will have the opportunity to purchase capacitors.Resistive Loads
Unlike inductive loads, resistive loads such a incandescent lights and element heaters (without a fan), do NOT require an induction suppression capacitor, and will NOT benefit from its use.
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