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Miller 20VDC 2PST N.O. Latching Contactor Relay

$910.94/EA $641.45/1 PER EA only $641.45/EASave 30%

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OVERVIEW

Restore Your Miller Welder's Performance

Is your Miller welding machine failing to switch power correctly or acting erratically? The issue could be a faulty contactor. The Miller 247571 Contactor is a genuine replacement part designed to get your machine back up and running at peak performance. Contactors are the heavy-lifters of your welder's internal electronics, constantly switching high currents on and off. Over time, the mechanical contacts can wear out, or the coil can fail, leading to machine downtime.

This specific model is a 20VDC, 2PST, Normally Open latching contactor. The "latching" feature is a key part of your machine's design, allowing it to hold a circuit setting without constantly drawing power to the switch itself. Because this is a specialized function, it is critical to replace it with the exact Miller OEM part rather than a generic relay. Installing the wrong type of contactor can prevent your machine from turning on or switching modes correctly.

Don't let a small electrical part stop your production. By choosing the authentic Miller 247571, you are ensuring a hassle-free installation. The mounting points and terminal connections are designed to match your existing setup perfectly, meaning no modifications or "rigging" are required. Trust in OEM quality to withstand the harsh conditions of a welding shop, from dust and debris to heat and vibration.

Keep your equipment reliable and safe. If your service manual calls for part number 247571, this is the direct replacement you need to restore your welder's functionality and get back to the job.

Additional Information
Brand:Miller
Packaging Description:1-per-ea
Product Type:Contactor
Coil Voltage:20VDC
Configuration:2PST (Double Pole Single Throw)
Contact State:N.O. (Normally Open)
Mechanism:Latching

INCLUDED

  • (1) Miller 247571 Contactor, 20VDC 2PST N.O. Latching

APPLICATIONS

  • Replacement of worn or failed contactors in Miller welding machines
  • Repair of internal power distribution circuits
  • Maintenance of specific Miller power sources requiring 20VDC latching logic

FAQ

The coil voltage for this contactor is 20VDC.

A latching contactor maintains its contact position (open or closed) after the power to the coil is removed, requiring a separate pulse to change state again. This differs from standard relays that return to a default state when power is cut.

Yes, this is a genuine Miller Electric OEM replacement part, ensuring perfect compatibility with your machine.

It is a 2PST (Double Pole Single Throw) configuration.

You should check your welder's parts manual or look up the machine's serial number on the Miller website to verify the correct part number for your specific unit.

No, if your machine is designed for a latching contactor, a non-latching version will not function correctly and could cause control circuit errors.

N.O. stands for Normally Open, meaning the contacts are open (disconnected) when the switch is in its default or reset state.

Typically, OEM repair parts like this do not come with instructions. Installation should be performed by a qualified technician referencing the machine's service manual.
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