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198547 - Miller 198547 Wire Wound Rheostat 25W 1.5 Ohm

Packaging: 1 PER EA
$336.62/EA $237.03/1 PER EA only $237.03/EASave 30%

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OVERVIEW

Restore Precision Control with the Miller 198547 Rheostat

Is your Miller welder losing its ability to fine-tune amperage or voltage? A failing rheostat is often the culprit behind erratic machine behavior or the inability to adjust output settings. The Miller 198547 Rheostat is the direct factory replacement you need to get your machine back to peak performance. Designed specifically for Miller Electric equipment, this component restores the smooth, linear adjustment control that professional welders rely on for precision work.

This heavy-duty rheostat utilizes a wire-wound design, which is the industry standard for high-reliability power applications. Rated at 25 Watts, it is robust enough to handle the control currents of industrial welding power sources without overheating or drifting. The 1.5 Ohm resistance is strictly manufactured to tolerance, ensuring that the dial on your machine corresponds accurately to the output. If your old rheostat has open spots, feels gritty when turning, or has failed completely, swapping it for this brand-new OEM unit is the reliable solution.

Key Features for Repair:

  • Exact Fitment: Designed by Miller for Miller machines, ensuring the shaft fits your control knob and the body fits the mounting panel.
  • Secure Connections: Features friction terminals that grip connectors tightly, preventing intermittent faults caused by loose wiring.
  • Durability: Built to resist the dust and thermal stress found in welding shops.

Don't risk your weld quality or your machine's safety with generic electronic components that may not match the power curve of your welder. The Miller 198547 is tested and verified for compatibility with specific Miller serial numbers. By choosing genuine parts, you protect your investment and ensure that your welder operates exactly as the engineers intended. Check your machine's parts manual to confirm compatibility with part number 198547 and restore the responsive control you need for perfect beads every time.

Additional Information
Brand:Miller
Packaging Description:1-per-ea
Component Type:Rheostat
Resistance:1.5 Ohm
Power Rating:25 Watts
Construction:Wire Wound (WW)
Terminal Type:Friction Terminals

INCLUDED

  • 1 x Miller 198547 Rheostat, WW 25W 1.5 Ohm

APPLICATIONS

  • Replacement of worn or burnt-out rheostats in Miller welding machines.
  • Restoring precise current or voltage adjustment functionality.
  • Repair of electrical control circuits requiring a 25W, 1.5 Ohm variable resistor.
  • Maintenance of industrial power sources compatible with Miller part 198547.

FAQ

The Miller 198547 Rheostat has a resistance value of 1.5 Ohms.

This rheostat is rated for 25 Watts of power dissipation.

It features friction terminals (FRIC TERM) for secure wire connections.

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

You should check your welder's owner's manual or parts list. Match the part number 198547 to the rheostat listed for your specific serial number.

It is a wire wound (WW) rheostat, which offers better thermal stability than carbon types.

It is not recommended. This part is designed specifically for the electrical and physical specifications of Miller equipment.

Symptoms often include the inability to adjust amperage/voltage, dead spots in the control dial, or erratic output from the welder.
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