About Motor Switches and Starters
More
Enclosed AC to DC Motor Speed Controls

Housed in a durable steel enclosure, these controls convert AC input voltage into DC output voltage and control the speed of permanent-magnet DC motors.
A heat sink (sold separately) is required with outputs greater than 5 amps.
For technical drawings and 3-D models, click on a part number.
Horsepower (Input Voltage/Output Voltage) | Current, A | Ht. | Wd. | Reversing Capability | Wire Connection Type | Environment | Environmental Rating | Specifications Met | Each | |
Single Phase | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
1/8-1 (115V AC/0-90V DC) 1/4-2 (230V AC/0-180V DC) | 10 | 8" | 6" | Nonreversing | Screw Terminals | Indoor Only | NEMA 1 | UL Listed, C-UL Listed | 0000000 | 0000000 |
Heat Sink | 0000000 | Each | 0000000 |
Reversing Enclosed AC to DC Motor Speed Controls

Use these controls with motors that run forward and backward, such as motors for conveyor belts. They convert AC input voltage into DC output voltage and control the speed of permanent-magnet DC motors. Housed in a durable steel enclosure.
A heat sink (sold separately) is required with outputs greater than 5 amps.
For technical drawings and 3-D models, click on a part number.
Horsepower (Input Voltage/Output Voltage) | Current, A | Ht. | Wd. | Reversing Capability | Wire Connection Type | Environment | Environmental Rating | Specifications Met | Each | |
Single Phase | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
1/8-1 (115V AC/0-90V DC) 1/4-2 (230V AC/0-180V DC) | 10 | 8" | 6" | Reversing | Screw Terminals | Indoor Only | NEMA 1 | UL Listed, C-UL Listed | 0000000 | 0000000 |
Heat Sink | 0000000 | Each | 0000000 |
AC to DC Motor Speed Controls

Convert AC input voltage into DC output voltage and control the speed of permanent-magnet DC motors.
A heat sink (sold separately) is required with outputs greater than 5 amps.
For technical drawings and 3-D models, click on a part number.
Reversing Washdown Enclosed AC to DC Motor Speed Controls

Use these controls with motors that run forward and backward, such as motors for conveyor belts. They have a NEMA 4X rated enclosure to withstand corrosion and washdowns. Use them to convert AC input voltage into DC output voltage and control the speed of permanent-magnet DC motors.
For technical drawings and 3-D models, click on a part number.
Horsepower (Input Voltage/Output Voltage) | Current, A | Ht. | Wd. | Reversing Capability | Wire Connection Type | Environmental Rating | Specifications Met | Each | |
Single Phase | |||||||||
---|---|---|---|---|---|---|---|---|---|
1/8-1 (115V AC/0-90V DC) 1/4-2 (230V AC/0-180V DC) | 10 | 7.5" | 5.63" | Reversing | Screw Terminals | NEMA 4X | UL Listed, C-UL Listed | 0000000 | 0000000 |
Washdown Enclosed AC to DC Motor Speed Controls

A NEMA 4X rated enclosure protects these controls from corrosion and washdowns. They convert AC input voltage into DC output voltage and control the speed of permanent-magnet DC motors.
For technical drawings and 3-D models, click on a part number.
Horsepower (Input Voltage/Output Voltage) | Current, A | Ht. | Wd. | Reversing Capability | Wire Connection Type | Environmental Rating | Specifications Met | Each | |
Single Phase | |||||||||
---|---|---|---|---|---|---|---|---|---|
1/8-1 (115V AC/0-90V DC) 1/4-2 (230V AC/0-180V DC) | 10 | 7.5" | 5.63" | Nonreversing | Screw Terminals | NEMA 4X | UL Listed, C-UL Listed | 0000000 | 0000000 |
Low-Voltage DC Motor Speed Controls

Control the speed of low-voltage permanent-magnet DC motors. These controls accept DC input voltage and supply a variable DC output voltage. Set a minimum and maximum speed and adjust the current limit on these controls. Operate controls manually or remotely with an electrical signal.
For technical drawings and 3-D models, click on a part number.
Horsepower (Input Voltage/Output Voltage) | Current, A | Ht. | Wd. | Reversing Capability | Wire Connection Type | Features | Specifications Met | Each | |
1/6 (12V DC/0-12V DC) 1/6-1/3 (24V DC/0-24V DC) | 16 | 6.9" | 4.4" | Nonreversing | Screw Terminals | Overload Protection | C-UL Listed | 0000000 | 0000000 |
3/4 (12V DC/0-12V DC) 3/4-1 (24V DC/0-24V DC) | 60 | 7.8" | 6.9" | Nonreversing | Screw Terminals | Overload Protection | C-UL Listed | 0000000 | 000000 |
Programmable Three-Phase AC Motor Speed Controls

Set these controls to automatically adjust motor speed. Wire a potentiometer (not included) for remote manual control.
For technical drawings and 3-D models, click on a part number.
Output | Input Signal | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Horsepower, hp | Input Voltage | Current, A | Voltage | Frequency, Hz | Voltage | Current, mA | Ht. | Wd. | Mounting Fasteners Included | Mounting Hole Diameter (No. of) | Environmental Rating | Specifications Met | Each | |
Single-Phase Input | ||||||||||||||
Reversing | ||||||||||||||
1 1/2 | 115V AC/230V AC | 5.2 | 230V AC | 0-120 | 0-10V DC | 4-20 | 7.5" | 3.9" | Yes | 0.2" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 0000000 |
DIN-Rail Mount Programmable Three-Phase AC Motor Speed Controls

Mount these controls to DIN rail inside a control panel. Set them to automatically adjust motor speed. Wire a potentiometer (not included) for remote manual control.
Output | Input Signal | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Horsepower, hp | Input Voltage | Current, A | Voltage | Frequency, Hz | Voltage | Current, mA | Ht. | Wd. | Reversing Capability | For DIN Rail Ht., mm | Specifications Met | Each | |
Single-Phase Input | |||||||||||||
1 | 200-240V AC | 3.7 | 230V AC | 0-320 | 0-10V DC | 4-20 | 7.68" | 3.54" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 0000000 | 0000000 |
1 | 200-240V AC | 4.8 | 230V AC | 0-400 | 0-10V DC | 4-20 | 5.98" | 2.83" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 00000000 | 000000 |
2 | 200-240V AC | 7.8 | 230V AC | 0-400 | 0-10V DC | 4-20 | 8.66" | 4.29" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 00000000 | 00000000 |
3 | 200-240V AC | 11 | 230V AC | 0-400 | 0-10V DC | 4-20 | 8.66" | 4.29" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 00000000 | 00000000 |
Three-Phase Input | |||||||||||||
3/4 | 200-240V AC | 2.8 | 230V AC | 0-320 | 0-10V DC | 4-20 | 6.3" | 2.6" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
1 | 200-240V AC | 4.8 | 230V AC | 0-400 | 0-10V DC | 4-20 | 5.98" | 2.83" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 00000000 | 000000 |
2 | 200-240V AC | 7 | 230V AC | 0-320 | 0-10V DC | 4-20 | 7.68" | 3.54" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
3 | 200-240V AC | 11 | 230V AC | 0-400 | 0-10V DC | 4-20 | 8.66" | 4.29" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 00000000 | 00000000 |
Three-Phase AC Motor Speed Controls
Vary the speed of three-phase AC motors. Mount these controls inside a machine or control cabinet. They’re often used in packaging machines, conveyors, and vacuum equipment. Operate controls manually or remotely with an electrical signal.
Input adapters (sold separately) allow controls to accept a range of input voltages and current. Mount to the bottom of the control.
For technical drawings and 3-D models, click on a part number.

Output | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Horsepower, hp | Input Voltage | Voltage | Frequency, Hz | Ht. | Wd. | Reversing Capability | Features | Specifications Met | Each | |
Single-Phase Input | ||||||||||
1/2 | 115V AC/230V AC | 230V AC | 0-120 | 3" | 4.3" | Reversing | Maximum Speed Setting, Run and Jog Modes, Torque Boost | UL Listed, C-UL Listed | 0000000 | 0000000 |
1 | 115V AC/230V AC | 230V AC | 0-120 | 4.4" | 6.9" | Reversing | Maximum Speed Setting, Run and Jog Modes, Torque Boost | UL Listed, C-UL Listed | 0000000 | 000000 |

Input Signal | |||
---|---|---|---|
Voltage | Current, mA | Each | |
0V DC-5V DC/0V DC-10V DC | 4-20 | 0000000 | 0000000 |