3-Gang Brass Dimmer Switch – Triple Rotary Control Switches

3-Gang Brass Dimmer Switch – Triple Rotary Control

Crafted from solid 0.080″ brass, this triple rotary dimmer fits standard U.S. wall boxes, comes with lacquered brass screws, and features three knurled knobs with push-click ON/OFF operation for smooth, precise control. Choose this 3-gang brass dimmer switch if you need to control three separate lighting zones from one wall plate. They are great for larger rooms where multiple light sources, fixtures, or layers of light need to work together on one brass plate. If you need other variations browse more of our brass dimmer switches here.

Highlights

• Triple rotary dimmer switches – smooth dimming + intuitive ON/OFF control
• Solid brass construction – full-thickness, no overlays
• Multiple finishes – aged, matte black, unlacquered & more
• Living finish option – unlacquered brass develops natural patina
• Standard fit – compatible with North American 3-gang wall boxes
• Includes hardware – lacquered brass screws included

Our 3-Gang Brass Dimmer Switch Is Best For

• Living rooms, dining rooms, kitchens, and open-plan spaces with three lighting zones
• Layouts with overhead light, accent light, and wall or task light on one plate
• Bedrooms or primary suites where ceiling light, sconces, and bedside lighting need separate control
• Projects that coordinate dimmers with matching outlets, sockets, combo plates, or a brass toggle
• Rooms that mix decorative and functional fixtures for a more layered result

How to Choose

Choose this 3-gang dimmer if you need three dimmers on one wall plate. It is best for spaces where three separate lighting zones are grouped together, such as a kitchen with pendants, recessed lights, and under-cabinet lighting, or a living room with ceiling light, sconces, and accent light. First, choose single pole or 3-way based on how your light is controlled. Choose single pole if one switch controls the light, or choose 3-way if the same light is controlled from two switch locations.

Plate Dimensions

3-Gang: 4.7″ × 6.3″

Dimmer Specifications

• Dimming Type: Leading Edge (TRIAC)
• Voltage: 110–120V | 50/60Hz
• Load Ratings (per dimmer):
  • Dimmable LED & halogen: 3–150 W
  • Incandescent: 40–600 W
• Built-in thermal protection: automatic safety cutoff
• Temperature rating (Ta): up to 130°C (266°F)
• Mechanical life: 10,000+ dimming cycles (minimum)
• Housing: flame-retardant polycarbonate (PC)
• Fit: fits standard North American 3-gang electrical wall boxes
• Certification: UL Certified (U.S. & Canada)

Single-Pole vs 3-Way

• Single-Pole: ON/OFF is a click while rotating, then continue turning to dim.
• 3-Way: push the knob for ON/OFF, then rotate to dim.

Before You Buy

This 3-gang brass dimmer switch uses Leading Edge (TRIAC) dimming and is compatible with most dimmable LED and incandescent bulbs. It is not compatible with trailing-edge, 0–10V, ELV, or smart bulbs, so be sure to check your bulb or driver specs before ordering. If you are replacing an existing dimmer, confirm whether your setup requires single pole or 3-way wiring.

• Use dimmable bulbs only
• Fits standard U.S. wall boxes
• Available in single pole and 3-way options
• Made for 3-gang layouts
• Always check load ratings before installation

Refer to our Electrical Wiring Guide for more info.

Installation & Support

For care instructions, visit our Brass Care Guide. For wiring and setup, see our Installation Guide and Wiring Guide. Need help? Contact us.

Sample Kit Available

Not sure about the finish? Try our Brass Sample Kit to preview dimmers, toggles, and outlet plates before ordering.

Need a different layout?

Explore other brass dimmer switch sizes: 1-Gang | 2-Gang | 4-Gang

Backed by a 14-day return policy and a lifetime finish warranty.