EVC600I Engga Automatic Voltage Regulator

About this part

An AVR senses the alternator's output voltage and adjusts the current in the exciter field many times a second to hold it at the set point. Without it, voltage swings with every change in load and can damage connected equipment.

When to replace it

• Output voltage that is too high, too low or unstable
• No output voltage although the engine runs normally
• Lights flickering or voltage dipping as loads switch on
• A burnt or damaged board after a lightning strike or short

Before you order

Set the voltage and stability adjustments with the generator off load first, then check the response with a load applied.

Not sure it is the right one? A photo of the old part and the nameplate of the machine it came off is usually all the counter needs to confirm a match.

Questions