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255744 - Miller 24VDC SPST 30A Flange Mount Relay

Packaging: 1 PER EA
$128.76/EA $91.32/1 PER EA only $91.32/EASave 29%

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OVERVIEW

Genuine Miller Replacement Relay for Industrial Welding Equipment

The Miller 255744 is a high-quality, enclosed relay designed specifically for use within Miller Electric welding power sources and industrial equipment. As a critical component in the electrical control system of your machinery, this relay ensures reliable switching operations necessary for optimal performance. It features a 24VDC coil voltage, a standard in many industrial control circuits, and is rated to handle substantial loads with a contact rating of 30 Amps at 300 VAC. This robust capacity makes it suitable for managing power distribution to various subsystems within the welder, such as fans, solenoids, or auxiliary power circuits.

Engineered with a Single Pole Single Throw (SPST) configuration, this relay provides a simple yet effective on-off switching mechanism. The unit is housed in an enclosed casing, which offers vital protection for the internal contacts against the ingress of dust, dirt, and metallic particulates common in welding environments. This enclosure extends the service life of the component and maintains consistent electrical conductivity over time. The relay is designed with a 4-pin layout and utilizes a flange mounting style, allowing for secure and vibration-resistant installation onto the machine's chassis or control board.

Sourcing genuine OEM parts like the Miller 255744 is essential for maintaining the integrity and safety of your welding fleet. Generic replacements may not meet the specific impedance or thermal requirements of Miller equipment, potentially leading to premature failure or damage to other sensitive electronics. This relay is manufactured to Miller's exact specifications, ensuring a perfect fit and seamless integration with the existing wiring harness. Whether performing routine maintenance or an emergency repair, this component provides the reliability expected from top-tier industrial welding equipment.

Key Specifications:

  • Coil Voltage: 24 VDC
  • Contact Rating: 30A / 300VAC
  • Configuration: SPST (Single Pole Single Throw)
  • Mounting: Flange Mount
  • Pins: 4
Additional Information
Brand:Miller
Packaging Description:1-per-ea
Component Type:Relay
Coil Voltage:24 VDC
Contact Rating:30 A, 300 VAC
Configuration:SPST
Mounting Style:Flange Mount
Pin Count:4 Pins

INCLUDED

  • 1 x Miller 255744 Relay, Enclosed 24VDC SPST

APPLICATIONS

  • Miller Welding Power Sources
  • Industrial Wire Feeders
  • Cooling System Control
  • Auxiliary Power Switching
  • General Machine Repair

FAQ

The coil voltage is 24 VDC.

The contacts are rated for 30 Amps at 300 VAC.

This relay features a 4-pin connection layout.

It is listed as SPST (Single Pole Single Throw). While usually SPST implies Normally Open in this context, please verify your schematic to ensure it matches your requirements.

It utilizes a flange mounting design, allowing it to be screwed or bolted securely to a panel.

We recommend using this relay only as a direct replacement for the specific Miller part number 255744 to ensure proper fitment and electrical safety.

This relay fits various Miller power sources and equipment. Please check your machine's service manual or serial number to verify compatibility.

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