116830 - Miller Replacement On-Off Rocker Switch for Millermatic 155 & M-15

Genuine Miller 116830 DPST Rocker Switch

The Miller 116830 is a high-quality replacement rocker switch designed specifically for Miller Electric welding equipment. As a genuine OEM part, it meets the rigorous safety and performance standards required for industrial welding environments. This switch features a Double Pole Single Throw (DPST) configuration, which allows it to control two separate circuits simultaneously while providing a simple On-Off actuation. This functionality is critical for the proper operation of power sources and welding gun assemblies where reliable circuit interruption is necessary for safety and control.

Electrically, the switch is rated for 10 Amps at 250 Volts AC. This robust rating ensures that the component can handle the current demands of the compatible equipment without overheating or failing prematurely. The internal contacts are engineered to resist arcing and wear, providing a long service life even under frequent cycling. The external housing is constructed from durable, heat-resistant black plastic, designed to withstand the rough handling and environmental contaminants often found in workshops and job sites.

This specific part number is the designated replacement for the Millermatic 155 welding power source, serving as a primary control switch. Additionally, it is compatible with Miller M-15 MIG welding guns, where it may function as a trigger or mode selector depending on the specific gun configuration. Using genuine Miller parts like the 116830 ensures that the physical dimensions—such as the mounting hole size and terminal spacing—are exact, facilitating a hassle-free installation process. Maintenance professionals and equipment repair specialists rely on this switch to restore factory-level performance to Miller welding systems.

When replacing electrical components in welding machinery, verifying the specifications is paramount. The 116830's 10A/250VAC rating makes it a heavy-duty component suitable for the specific loads of the Millermatic series. Its snap-in design allows for quick replacement, minimizing downtime and getting equipment back into production efficiently. Whether you are repairing a vintage Millermatic 155 or servicing an M-15 gun, this switch provides the reliability expected from the Miller brand.