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Miller 4700µF 500VDC Electrolytic Capacitor Replacement

$1,221.60/EA $857.33/1 PER EA only $857.33/EASave 30%

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OVERVIEW

Restore Power with the Miller 213870 Capacitor

Keep your welding equipment running at its best with the Miller 213870 Capacitor. This 4700 µF, 500 VDC electrolytic capacitor is a direct replacement for the main power capacitors found in various Miller welding machines. Capacitors play a vital role in the power supply section of your welder, acting as energy reservoirs that smooth out the electrical current after it has been rectified. When these components age or fail, you may notice a significant drop in weld quality, increased spatter, or the machine may trip breakers or fail to power on altogether.

This authentic Miller replacement part is engineered to the original factory specifications. It features a 3.02-inch diameter body, designed to fit securely in the original mounting location without modification. The 500 VDC rating ensures it can safely manage the voltage levels present in the DC bus of your power source. Using generic or mismatched capacitors can be dangerous and may lead to further damage to your inverter or transformer components due to incorrect ripple current ratings or physical fitment issues.

Safety is paramount when replacing capacitors. Due to their ability to store lethal amounts of energy even when power is disconnected, installation should be performed by qualified technicians who understand how to properly discharge the system. Investing in the Miller 213870 ensures you are installing a component that meets the rigorous safety and performance standards set by Miller Electric, helping you extend the life of your valuable welding assets.

Additional Information
Brand:Miller
Packaging Description:1 Per Ea
Component Type:Electrolytic Capacitor
Capacitance:4700 µF
Voltage Rating:500 VDC
Diameter:3.02 in

INCLUDED

  • 1 x Miller 213870 Capacitor, Electrolytic 4700 µF 500 VDC

APPLICATIONS

  • Replacement of main DC bus capacitors in compatible Miller welding power sources.
  • Repair of welding machines exhibiting power instability or arc issues.
  • Routine maintenance of aged electrolytic capacitors to prevent leakage or failure.

FAQ

The capacitor is rated at 4700 µF (microfarads) capacitance and 500 VDC (Volts Direct Current).

The capacitor has a diameter of approximately 3.02 inches.

Yes, this is a genuine OEM replacement part manufactured for Miller Electric equipment.

Signs of failure include physical bulging of the can, leaking electrolyte fluid, or the machine failing to maintain a stable arc or powering on.

While possible, it is highly recommended to use the OEM part to ensure the correct ripple current rating, terminal configuration, and physical fitment for safety.

No, this item is typically sold as the capacitor unit only. You will usually reuse the existing mounting hardware from your machine.

Capacitors store high voltage even when unplugged. They must be properly discharged by a qualified technician before removal to prevent electric shock.