Product Description
Heavy-Duty Toggle Switch – DPDT 3P, (ON)-OFF-(ON), 20A 125VAC / 15A 250VAC
The 66-1951 Heavy-Duty Toggle Switch is a rugged DPDT (Double Pole Double Throw) 3P toggle switch designed for applications requiring reliable switching and high current capacity. It features a (ON)-OFF-(ON) configuration, with (ON) indicating momentary operation, making it suitable for equipment where the switch returns from the momentary ON position when released.
The switch features a durable metal construction, chrome-plated toggle lever, threaded mounting bushing, and solder/quick-connect style terminals for straightforward panel installation. Its heavy-duty design and 20-amp rating at 125VAC make it suitable for a variety of electrical, automotive, industrial, marine, radio, and equipment-control applications.
Key Features
- Part Number: 66-1951
- Heavy-duty toggle switch
- DPDT 3P configuration
- (ON)-OFF-(ON) switching action
- (ON) = Momentary
- Two momentary ON positions with OFF center position
- Chrome-plated metal toggle lever
- Threaded M12 x 0.75 mounting bushing
- Includes mounting hardware
- Durable metal mounting plate
- High-current switching capability
- Suitable for panel-mount applications
- RoHS compliant
- TUV and CE markings shown on specification sheet
Electrical Ratings
- 20 Amps @ 125VAC
- 15 Amps @ 250VAC
Switch Configuration
(ON)-OFF-(ON) / DPDT 3P
The (ON) positions are momentary, meaning the switch is spring-returned when released. The center position is OFF.
This configuration provides a convenient way to control two circuits or functions from a single switch while allowing momentary activation in either direction.
Dimensions
All measurements are in millimeters (mm).
- Overall body width: 33.0 mm
- Body depth: 19.8 mm
- Body height: 19.0 mm
- Terminal length: 10.3 mm
- Terminal dimension: 6.4 mm
- Toggle diameter: 6.0 mm
- Toggle head diameter: 12.2 mm
- Toggle height: 18.1 mm
- Mounting thread: M12 x 0.75
- Toggle travel: 30°
- Additional dimensions as shown in the manufacturer's mechanical drawing
Construction & Applications
The 66-1951 is designed for demanding switching applications where a compact, panel-mounted heavy-duty switch is required. Its DPDT configuration and momentary ON positions make it useful for radio equipment, automotive controls, industrial machinery, control panels, electrical equipment, marine applications, and custom electronic projects.
Specifications
| Specification | Details |
|---|---|
| Part Number | 66-1951 |
| Switch Type | Heavy-Duty Toggle |
| Circuit | DPDT 3P |
| Function | (ON)-OFF-(ON) |
| ON Positions | Momentary |
| Rating A | 20A / 125VAC |
| Rating B | 15A / 250VAC |
| Mounting Thread | M12 x 0.75 |
| Toggle Travel | 30° |
| Toggle Diameter | 6.0 mm |
| Toggle Head Diameter | 12.2 mm |
| Body Width | 33.0 mm |
| Body Depth | 19.8 mm |
| Compliance | RoHS / TUV / CE as shown |
| Mounting | Panel Mount |
66-1951 is an excellent choice for high-current, heavy-duty switching applications requiring a DPDT momentary ON-OFF-momentary ON configuration.
