279767 - Miller 40A Definite Purpose Contactor 3-Pole 24V Coil

Reliable Power Switching for Miller Welders

The Miller 279767 Contactor is a critical replacement component designed for specific Miller welding power sources. As a Definite Purpose (DP) contactor, it is engineered to handle the rigorous electrical demands of welding operations, managing high-amperage currents with precision and durability. This unit is rated for 40 Amps and features a 3-Pole design.

What sets this contactor apart is its specific contact configuration: 1 Normally Closed (NC) and 2 Normally Open (NO) contacts. This arrangement is vital for the correct sequencing of your machine's internal circuits. Using a standard 3NO contactor in place of this specialized unit could result in machine malfunction or damage. The coil operates on 24 VAC, a standard control voltage for many industrial welding machines.

When your welder exhibits symptoms such as a humming noise without output, the arc staying on when the trigger is released, or failure to power up the transformer, a faulty contactor is often the culprit. Replacing it with this genuine Miller part ensures that your equipment is restored to factory specifications. Trust Josef Gas for authentic Miller Electric repair parts to keep your shop running smoothly.