Dart Controls


Alternate Part Number: 
AC Speed Control, Chassis, Replaced 57AC10
In stock
1 Available
Speed Control, Variable AC Voltage Supply, Chassis, 240VAC Supply, Full Wave, 10A (Amp) Max
Please note that this series does not work with capacitor start motors, read more below.

The 55/57 series are cost-effective and compact triac variable AC voltage supplies that are manufactured especially for the vibratory feeder, fan, pump, heating, and lighting industries.

All models feature single-phase AC input and fully variable AC output. The enclosed version comes with a rugged housing, power on/off switch, power on indicator lamp, front access fuse, as well as convenient input and output cords and plugs.

The heart of the control is a triac fired in a manner to adjust phase and thereby vary speed. The 55 Series is designed to work with shaded pole, permanent split capacitor, permanent split-phase, universal motors or any resistive load. It is not designed for capacitor start motors.

 It also can be used with heating elements as a simple temperature control. Open chassis models include speed pot knob and dial.

The 55/57 Series AC Motor Speed control is a triac based single phase variable voltage supply. It is used primarily with single phase AC motors and universal motors that ARE NOT CAPACITOR START designs. 

  • 55AC10E- Enclosed, NEMA 1, 120V, 10 Amp, 1hp
  • 55AC15E- Enclosed, NEMA 1, 120V, 15 Amp, 1.5hp
  • 57AC10E- Enclosed, NEMA 1, 240V, 10 Amp, 2hp
  • 57AC15E- Enclosed, NEMA 1, 240V, 15 Amp, 2.5hp
  • Change E to C on any of the above for the chassis versions
More Information
Part Number 57AC10C
Alternate Part Number AC Speed Control, Chassis, Replaced 57AC10
Analog/Digital See Spec
Manufacturer Dart Controls
Speed Controller Type AC Speed Controls
Housing/Enclosure Non-Enclosed
Voltage AC
Availability Please Contact Us
Product Series 55/57 Series
Weight - lbs. 0.500000
Base Unit of Measure Each
  • Variable AC voltage supply
  • 240VAC input, 0 to 240VAC output, single phase
  • Maximum output amps: 15
  • Chassis version, no enclosure
  • For enclosed version please see 57AC10E
2023-11-16 23:15:23
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