About Electric Motors
When replacing a motor, use the information on your motor’s nameplate to guide your selection.
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About Motor Switches and Starters
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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.
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. | Reversing Capability | For DIN Rail Ht., mm | Specifications Met | Each | |
Single-Phase Input | |||||||||||||
1/2 | 100-120V AC | 2.4 | 230V AC | 0-320 | 0-10V DC | 4-20 | 7.68" | 3.54" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 0000000 | 0000000 |
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 | 100-120V 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 | 000000 |
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 | 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 | 9.6 | 230V AC | 0-320 | 0-10V DC | 4-20 | 9.96" | 3.94" | Reversing | 35 | UL Listed CE Marked | 0000000 | 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 | 380-480V AC | 2.4 | 460V AC | 0-320 | 0-10V DC | 4-20 | 6.3" | 2.6" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 0000000 | 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 | 0-320 | 0-10V DC | 4-20 | 9.96" | 3.94" | Reversing | 35 | UL Listed CE Marked | 0000000 | 00000000 |
3 | 380-480V AC | 5.6 | 460V AC | 0-320 | 0-10V DC | 4-20 | 7.68" | 3.54" | Reversing | 35 | UL Listed C-UL Listed CE Marked | 0000000 | 00000000 |
5 | 380-480V AC | 9 | 460V AC | 0-320 | 0-10V DC | 4-20 | 9.96" | 3.94" | Reversing | 35 | UL Listed CE Marked | 0000000 | 00000000 |
7 1/2 | 380-480V AC | 12 | 460V AC | 0-320 | 0-10V DC | 4-20 | 9.96" | 3.94" | Reversing | 35 | UL Listed CE Marked | 0000000 | 00000000 |
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 | 115V AC/230V AC | 4.2 | 0-230V AC | 0-500 | 0-10V DC | 4-20 | 7.5" | 3.9" | No | 0.22" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 0000000 |
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 | 000000 |
2 | 200-240V AC | 7 | 0-230V AC | 0-500 | 0-10V DC | 4-20 | 7.5" | 3.9" | No | 0.22" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
3 | 200-240V AC | 9.6 | 0-230V AC | 0-500 | 0-10V DC | 4-20 | 7.5" | 3.9" | No | 0.22" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
Three-Phase Input | ||||||||||||||
Reversing | ||||||||||||||
1 | 200-240V AC | 4.2 | 0-230V AC | 0-500 | 0-10V DC | 4-20 | 7.5" | 3.9" | No | 0.22" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
1 | 400-480V AC | 2 | 400-480V AC | 0-120 | 0-10V DC | 4-20 | 7.5" | 3.89" | No | 0.21" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
2 | 170-264V AC | 7 | 0-230V AC | 0-500 | 0-10V DC | 4-20 | 7.5" | 3.89" | No | 0.22" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
3 | 200-240V AC | 9.6 | 0-230V AC | 0-500 | 0-10V DC | 4-20 | 7.5" | 3.9" | No | 0.22" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
5 | 200-240V AC | 18 | 200-240V AC | 0-500 | 0-10V DC | 4-20 | 10.75" | 5.08" | No | 0.24" (4) | __ | UL Listed C-UL Listed CE Marked | 0000000 | 00000000 |
5 | 400-480V AC | 8.2 | 400-480V AC | 0-500 | 0-10V DC | 4-20 | 7.5" | 3.9" | No | 0.22" (4) | NEMA 1, IP31 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
Washdown Programmable Three-Phase AC Motor Speed Controls
Rated NEMA 4, these controls are protected from washdowns. Set them to automatically adjust motor speed. Wire a potentiometer (not included) for remote manual control.
Controls rated NEMA 12 also protect against splashes of oil and coolant when used indoors.
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. | Reversing Capability | Environmental Rating | Specifications Met | Each | |
Single-Phase Input | |||||||||||||
1 | 200-240V AC | 4.2 | 200V AC-240V AC | 0-120 | 0-10V DC | 4-20 | 8" | 6.5" | Reversing | NEMA 4, NEMA 12, IP65 | UL Listed C-UL Listed CE Marked | 0000000 | 0000000 |
Single-Phase/Three-Phase Input | |||||||||||||
2 | 200-240V AC | 7 | 200V AC-240V AC | 0-500 | 0-10V DC | 4-20 | 8" | 6.28" | Reversing | NEMA 4, IP65 | UL Listed C-UL Listed CE Marked | 0000000 | 000000 |
Three-Phase Input | |||||||||||||
2 | 400-480V AC | 3.4 | 400V AC-480V AC | 0-500 | 0-10V DC | 4-20 | 8" | 6.28" | Reversing | NEMA 4, IP65 | UL Listed C-UL Listed CE Marked | 0000000 | 00000000 |
3 | 400-480V AC | 4.8 | 400V AC-480V AC | 0-500 | 0-10V DC | 4-20 | 8" | 6.28" | Reversing | NEMA 4, IP65 | UL Listed C-UL Listed CE Marked | 0000000 | 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 |
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.
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 |
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 |
Speed-Control Motors
Maintain speed automatically. These motors come with a speed control with a feedback sensor that adjusts power to maintain your set speed. They combine the speed control characteristics of permanent magnet brushless DC motors with the convenience of AC power—an integrated inverter means they operate on 120 volts AC.
Motors are rated for continuous duty and mount at any angle. Shaft is keyed and comes with key stock. Use the switch on the speed control to set clockwise or counterclockwise rotation.
All have manual overload protection—an LED on the speed control indicates when the overload protection is triggered; use the switch to reset. Control also has an on/off switch and a speed adjustment knob. Panel mount the control up to 10 feet from the motor—it comes with a 10-ft. cable for connection.
For technical drawings and 3-D models, click on a part number.
Overall | Shaft | For Panel Cutout | Insulation | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Power, hp | Max. Speed, rpm | Starting Torque, in.-lbs. | Torque @ Max. Speed, in.-lbs. | Full Load Current, A | Motor Enclosure Type | Lg. | Wd. | Ht. | Dia. | Lg. | Center to Base | Wd. | Ht. | Class | Max. Temp., ° F | Environmental Rating | Each | |
NEMA 34 | ||||||||||||||||||
1/5 | 1,750 | 8.1 | 8.1 | 2 | Totally Enclosed Nonventilated (TENV) | 7 1/2" | 4" | 4 1/4" | 1/2" | 1.21" | 1.93" | 4" | 2 7/8" | B | 266° | IP50 | 000000 | 000000000 |
1/3 | 1,750 | 13.4 | 13.4 | 8 | Totally Enclosed Nonventilated (TENV) | 8 1/2" | 4" | 4 1/4" | 1/2" | 1.21" | 1.93" | 4" | 2 7/8" | B | 266° | IP50 | 000000 | 00000000 |
1/3 | 3,450 | 6.5 | 6.5 | 4 | Totally Enclosed Nonventilated (TENV) | 7 1/2" | 4" | 4 1/4" | 1/2" | 1.21" | 1.93" | 4" | 2 7/8" | B | 266° | IP50 | 000000 | 00000000 |
Stepper Motor Controllers and Drivers
Tell your stepper motor how far and fast to go by adding a controller and driver to your system. A controller is similar to a PLC—they store and run programs and send signals to a driver. These controllers have commands specifically for stepper motors such as number of steps and direction. The driver delivers power to the motor based on the signals from the controller. Choose from either an individual driver or a combination controller/driver.
For technical drawings and 3-D models, click on a part number.
Drivers can be set to different step resolutions. The higher the number of step resolution settings, the greater the flexibility you have for determining the size of the motor’s step.
Choose a driver rated at or below your motor's maximum current.
Step resolution determines the size of the step a motor takes. For example, setting a 1/128 step resolution on your driver divides one full step into 128 smaller steps. The smaller the steps your motor takes the more smoothly and precisely it will move.
O'all | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Current per Phase, A | Voltage | Step Resolution | No. of Step Resolution Settings | Max. Step Frequency, MHz | For Stepper Motor Polarity | Wire Connection Type | Lg. | Wd. | Ht. | Each | |
0.4-8 | 90-240V AC | 1; 1/2; 1/4; 1/5; 1/8; 1/10; 1/16; 1/20; 1/25; 1/32; 1/40; 1/50; 1/64; 1/100; 1/125; 1/128 | 16 | 2 | Bipolar | Screw Terminals | 4.7" | 7" | 2.1" | 00000000 | 0000000 |
Simplify setup with these single units. The controller and driver are combined, so you can determine all your settings from one device including number of steps, direction, and step resolution. They have multiple inputs and outputs to communicate with more than just a motor. Connect sensors and switches or link multiple controllers together to coordinate movements between motors.
Choose a controller/driver rated at or below your motor’s maximum current.
Step resolution determines the size of the step a motor takes. For example, setting a 1/128 step resolution on your controller/driver divides one full step into 128 smaller steps. The smaller the steps your motor takes the more smoothly and precisely it will move.
No. of Inputs/Outputs | O'all | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Current per Phase, A | Voltage | Step Resolution | No. of Step Resolution Settings | Max. Step Frequency, MHz | Digital (Input) | Digital (Output) | For Stepper Motor Polarity | Lg. | Wd. | Ht. | Each | |
0.5-6 | 94-135V AC | 1 to 1/256 | 25,501 | 2 | 7 | 3 | Bipolar | 4.7" | 6.4" | 2.3" | 00000000 | 000000000 |