Overview
The McGill 0140-3004 is a heavy-duty 3-pole double-throw (3PDT) manual toggle switch engineered for industrial power distribution and motor control applications. This robust unit provides dual voltage ratings—6A at 600VAC and 17A at 125-277VAC—making it ideal for multi-voltage panel designs, equipment isolation circuits, and three-phase machinery control. Silver-plated metal contacts and solder-lug termination ensure low-resistance connections and extended service life in demanding industrial environments.
Key Features
- 3-Pole Double-Throw (3PDT) Configuration—independent control of three separate circuits with common on/off switching
- Dual Voltage Ratings—6A @ 600VAC and 17A @ 125-277VAC for flexibility in mixed-voltage installations
- Manual Toggle Actuation—simple, tactile on/off operation with no electronic components
- Silver-Plated Metal Contacts—low contact resistance and extended arcing life
- Solder Lug Termination—secure permanent connections; no crimps or push-in terminals required
- Panel Mount Design—compact 1/4-40 bushing fits standard equipment enclosures and switchboards
Technical Specifications
- Configuration: 3-Pole, 2-Position (3PDT)
- Voltage Ratings: 600VAC primary; 125-277VAC secondary
- Current Ratings: 6A @ 600VAC; 17A @ 125-277VAC
- Horsepower: 1 HP @ 125VAC; 2 HP @ 250-600VAC
- Contact Material: Silver-plated metal
- Switch Type: Manual toggle, 2-position actuator
- Termination: Solder lugs
- Mounting: Panel mount with 1/4-40 bushing
- Environmental Rating: IP67/IP68S (dust and moisture resistant)
- Phases: 1, 2, or 3-phase AC
- Contact Cycles: 100,000+ cycles (typical toggle durability)
Typical Applications
- Motor starter panels and VFD bypass switching
- Three-phase equipment isolation and transfer switching
- Industrial machinery control panels and operator stations
- Power distribution switchboards and electrical cabinets
- Dual-voltage equipment selection and changeover circuits
- Heavy-duty HVAC and pump control systems
Compatibility & Replacements
Compatible With
- 3-phase AC power systems (208V, 240V, 277V, 480V, 600V)
- Single-phase 125V, 250V circuits
- Motor control centers and soft starters
- Industrial control enclosures and panel assemblies
- Standard 1/4-40 panel-mount bushing cavities
- Solder-terminal circuit boards and wire-lug harness assemblies
Replaces / Drop-In Replacement For
- Regal Rexnord 0140-3004 (discontinued)
- McGill 0140-3004 earlier production units
- Verify compatibility with your system integrator before ordering
Works With
- Standard 3PDT toggle switch cavity layouts in control panels
- Manual operator stations and selector switches
- Industrial switchboards and transfer switch assemblies
- 1, 2, or 3-phase AC motor control schemes





