Rotary Switches
Rotary Switch Manufacturer, Rotary Electrical Switch, HVAC Switch, Resistive Or Motor (Inductive) Load
Carson rotary switches are versatile, durable and economical line-voltage devices designed for multi-tap motor speed selection. These switches are UL and CSA recognized for resistive and fractional horsepower motor (inductive) loads, and sized to easily fit single-gang switch box installations. Several HVAC Industry leaders like International Environmental, Trane, McQuay, Airtherm, Hydro-Air, Bryant and Carrier have trusted Carson rotary switches since they were first introduced in 1948.
Built with heavy duty components, Carson rotary switches are great for commercial building fan controls, industrial fans, farm fans, sports fans, floor polishers, food service equipment, portable heaters, blowers and dryers. Through unique construction Carson rotary switches can easily be customized to meet a variety of application requirements.
Ratings
- 10 Amps – 1/4 HP at 125 VAC
- 5 Amps – 1/2 HP at 250 VAC
- 5 Amps – 1/4 HP at 277 VAC
Available Rotary Switches
Replacement Rotary Switches
Except for the Standard or Custom rotary switches described below, our rotary switches are custom built and proprietary to OEM customers – we do not sell direct. Carson Manufacturing can direct you to the appropriate OEM to contact. In order to provide you with a fast and accurate response to your replacement switch search, identify the part number and contact Carson Manufacturing with part number and quantities.
Where to Find the Part Number
The part number will be located on the back of the switch at the bottom of the board. Older switch models will reflect an embossed part number, while newer switch model part numbers will be affixed with a label. Example part numbers in red below.
Examples:
95-13 3A162
M91 3A 245
Example:
3D312 11-32
Standard Rotary Switches
Carson Manufacturing offers a variety of commonly used switch types that will satisfy most all applications, such as commercial building fan controls, industrial fans, farm fans, sports fans, floor polishers, portable heaters, blowers and dryers.
Ratings
- 10 Amps – 1/4 HP at 125 VAC
- 5 Amps – 1/2 HP at 250 VAC
- 5 Amps – 1/4 HP at 277 VAC
Standard Switch Options
Standard Switches and Options |
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| 3A254 | 3D312 | 3TA252 | XXXXXX-2 | XXXXXX-3 |
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| SP3T W/Off | SP3T W/Off Double Contact | SP3T W/Off Isolated Aux Contact | Wall Plate, Screws* & Knob, Bulk Pack | Wall Plate, Screws* & Knob, Indiv. Pack |
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| Includes 6″ #16 GA Lead Wires and Fiber Insulator with Printed Wiring Diagram. *#6/32 X 1/2″ Oval Head Screws Attached to Wall Plate. |
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Custom Rotary Switches
Carson rotary switches can be configured for your special application requirements. We offer a broad range of construction options to fit your needs. Most commonly available options can be supplied in small volumes within 2-4 weeks. Contact Carson Manufacturing for your specific switch needs.
Series ‘A’ Rotary Switch
- Single contact (1 pole)
- 2-8 positions
Series ‘D’ Rotary Switch
- Double contact for 2 common circuits (1 pole)
- 2-6 positions
Series ‘TA’ Rotary Switch
- Single contact (1 pole)
- Isolated auxiliary circuit used for light, valve, contactor, etc.
- 2-4 positions
Series ‘S’ Rotary Switch
- Combines any two “A,” “D” or “TA” switch decks (2 pole)
- UL recognized only
Commonly Available Options
- 0° or 15° offset
- Special contact arrangement, such as center off
- Male 1/4″ quick connect terminals
- #18 or #16 GA PVC insulated lead wires cut to customer’s desired length, with common lead colors immediately available
- Can mix terminals and leads on same switch
- Wall plate mounted assembly for single-gang switch box installation.
- Bracket mounted assembly for single-gang switch box installation with commercially available wall plates.
(Note: Knob for 1/4″ shaft with set screw can be used) - Black winged push-on knob for square shaft.
(Note: Knob for 1/4″ shaft with set screw can be used) - .03″ Protective fiber insulator can be printed or labeled (leads only)
- Available without bushing for screw or pop-rivet mounting
- Individually or bulk packed for shipping
- White aluminum wall plate with slotted white head screws (#6-32×1/2)
Special Options
Additional lead time and/or setup costs may apply.
- D Shaft, round shaft, shaft-less (keyed), screw driver slot
- Various mounting screw lengths
- Lead termination and/or connector assembly
- Special wall plate printing
Contact Us
For more information regarding replacement, standard, or custom rotary switches, please contact us or call 888.577.6877.