Heavy Duty 20A DPDT On-Off-On Toggle Switches

When you need to route power reliably across multiple circuits, this heavy-duty DPDT On-Off-On toggle switch gets the job done. Rated for up to 20 Amps at 125 VAC (and 15 Amps at 250 VAC), it provides a solid, maintained switching function. Whether you are building out industrial control panels from scratch or setting up heavy machinery power switching for a shop environment, this component offers the robust tactile feedback and mechanical durability required for demanding, high-current environments. We know that when you are dealing with mains voltage and heavy loads, you need a switch that will not fail under pressure.

Maintained On-Off-On Switching Function

This switch features a maintained On-Off-On configuration, meaning it stays securely in whichever of the three positions you set it—no momentary holding required. The double pole double throw (DPDT) design allows you to control two separate circuits simultaneously. This makes it highly versatile for tasks like reversing AC motor control, managing dual power distribution lines in electrical equipment, or selecting between two different power sources. The mechanical throw is firm and deliberate, preventing accidental actuation in busy workspaces.

Key Features

Designed for straightforward installation and long-term reliability, this toggle switch includes everything you need to get your circuits wired up and clearly labeled.

• Maintained On-Off-On operation for stable circuit selection
• Double Pole Double Throw (DPDT) configuration
• Heavy-duty 20A rating for high-draw circuits
• Secure 6-terminal screw connection design
• Includes On-Off-On legend plate and mounting hardware

Technical Data

• Contact Configuration: DPDT (Double Pole Double Throw)
• Switching Function: On-Off-On (Maintained)
• Current Rating (125 VAC): 20 Amps
• Current Rating (250 VAC): 15 Amps
• Termination Type: Screw Terminals (6 terminals)
• Mounting Hole Diameter: 1/2 inch (approx. 12mm)
• Mounting Depth: 1 inch

Versatile Applications for Heavy Machinery

Swaps in wherever a robust, high-current directional or selector switch is needed. It fits the gap between standard low-voltage hobbyist toggles and massive, expensive industrial contactors. Because it handles up to 20 Amps, it is ideal for AC motor control, heavy machinery power switching, and general electrical equipment power distribution. The standard 1/2-inch (12mm) mounting hole ensures it integrates easily into standard panel retrofits, while the 1-inch mounting depth keeps the rear profile manageable inside crowded enclosures.

What's Included: 1 Heavy Duty DPDT On-Off-On Toggle Switch. Part number 66-1806.