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Technipower Variac Variable Autotransformers

  • Only autotransformer on the market that is based on original Variac design 
  • Efficient, trouble-free device for controlling AC voltage and any other quantities that derive from AC voltage: heat output, light intensity, motor speed and power supply outputs 
  • This autotransformer has a transformation ratio that can be smoothly and continuously changed so that the output of the unit can be controlled from zero to line voltage or even higher 
  • Durable, because they run cool 
  • Independent of load size or power factor - the voltage to the load changes little from full load to no load 
  • Distortion free - they add no harmonic distortion to the power line 
  • Reliable - special contact surface reduces brushtrack deterioration for long life 
  • Easy to install - all mounting hardware is included, a wiring diagram is on the terminal plant and conduit knockouts are included on enclosed models 
  • Versatile - hundreds of standard versions are available to satisfy various line frequency, voltage and phases requirements, load size and mounting demands (including portable models); they can be supplied with motor drives, ball bearings and in ganged assemblies to increase basic line-voltage and load current ratings; militarized models for 400 Hz operation are available 
  • Safe - safety is assured by Underwriter's Laboratory listing and Canadian Standards approval for many models 

W20MT3A --

  • Output - Rate Current Amperes - 18.0; Max Output Voltage Range - 0/140VAC 
  • 20 Amps, 150 V full scale meters 
  • Portable, Single-Phase 
  • 120V, 50-60Hz input 

W2 Variable Autotransformer ---

  • Output - Rated Current Amperes - 2.4; Max Current Amperes - 3.1; KVA - 0.37; Max Output Voltage Range - 0/140VAC 
  • Mounting - Open 

W5 Variable Autotransformer  --

  • Output - Rated Current Amperes - 6.0; Max Current Amperes - 7.8; KVA 0.94; Max Output Voltage Range - 0/140VAC 
  • Mounting - open

W8 Variable Autotransformer  --

  • Output - Rated Current Amperes - 8.5; Max Current Amperes - 11.0; KVA - 1.32; Max Output Voltage Range - 0/140VAC 
  • Mounting - Open 

Other Units Available

  • To 300 Amps 
  • 120/240/480V 
  • 50-60Hz, 400Hz units 
  • Open or Closed Options

Part No Model No
Rated Current Amps
Max Current Amps
 KVA
Output Range Volts
Notes
Price

Single Phase;120V; 50-60 Hz Input - Open Frame
3010-5110 W2 2.4 3.1 0.37 0-140
$112
3010-5210 W2BB 2.4 3.1 0.37 0-140
$233
3030-5110 W5 6.0 7.8 0.94 0-140
$165
3030-5210 W5BB 6.0 7.8 0.94 0-140
$270
3050-5110 W5L 8.5 11.0 1.32 0-120 60 Hz Only
$149
3038-5110 W8 8.5 11.0 1.32 0-140
$205
3058-5110 W8L 10.0 13.0 1.56 0-120 60 Hz Only
$203
3060-5110 W10 10.0 13.0 1.56 0-140
$210
3060-5210 W10BB 10.0 13.0 1.56 0-140
$337
3038-5120 W8G2 17.0 22.0 2.6 0-140 2-Gang
$516
3090-5110 W20 20.0 26.0 3.12 0-140
$394
3038-5130 W8G3 25.5 33.0 4 0-140 3-Gang
$774
3120-5110 W30 30.0 36.0 4.32 0-140
$631
3090-5120 W20G2 40.0 52.0 6.2 0-140 2-Gang
$2,028
3150-5110 W50 50.0 50.0 6 0-140
$1,038
3150-5210 W50BB 50.0 50.0 6 0-140 Ball Bearing
$1,383
3120-5120 W30G2 60.0 72.0 8.6 0-140 2-Gang
$ 2,028
3090-5130 W20G3 60.0 78.0 9.4 0-140 3-Gang
$ 1,514
3120-5130 W30G3 90.0 108.0 13 0-140 3-Gang
$ 1,914
3150-5120 W50G2 100.0 100.0 12 0-140 2-Gang
$ 3,092
3150-5220 W50G2BB 100.0 100.0 12 0-140 Ball Bearing 2-Gang
$ 2,525
3150-5130 W50G3 150.0 150.0 18 0-140 3-Gang
$ 4,112
3150-5230 W50G3BB 150.0 150.0 18 0-140 Ball Bearing 3-Gang
$ 4,113
3150-5240 W50G4BB 200.0 200.0 24 0-140 Ball Bearing 4-Gang
$ 4,777







 

Single Phase; 120V / 50-60 Hz Input; Cased
3010-5111 W2M 2.0 2.6 0.31 0-140  
$294
3030-5111 W5M 5.0 6.5 0.78 0-140
$319
3050-5111 W5LM 7.1 9.2 1.1 0-120 60 Hz Only
$321
3060-5111 W10M 10.0 13.0 1.56 0-140
$459
3060-5220 W10BBM 10.0 13.0 1.56 0-140 Ball Bearing
$563
3090-5111 W20M 20.0 26.0 3.12 0-140
$647
3120-5111 W30M 28.0 32.0 3.84 0-140
$1,294
3090-5121 W20G2M 40.0 52.0 6.2 0-140 2-Gang
$ 1,433
3150-5111 W50M 40.0 45.0 5.4 0-140
$ 1,747
3150-5211 W50BBM 40.0 45.0 5.4 0-140 Ball Bearing
$ 1,799
3120-5121 W30G2M 56.0 64.0 7.7 0-140 2-Gang
$ 2,563
3090-5131 W20G3M 60.0 78.0 9.4 0-140 3-Gang
$ 1,817
3150-5121 W50G2M 80.0 90.0 10.8 0-140 2-Gang
$ 3,310
3150-5231 W50G2BBM 80.0 90.0 10.8 0-140 Ball Bearing 2-Gang
$ 3,501
3120-5131 W30G3M 84.0 96.0 11.5 0-140 3-Gang
$ 3,747
3150-5131 W50G3M 120.0 135.0 16.2 0-140 3-Gang
$ 4,863
3150-5231 W50G3BBM 120.0 135.0 16.2 0-140 Ball Bearing 3-Gang
$ 4,969
3150-5241 W50G4BBM 160.0 180.0 21.6 0-140 Ball Bearing 4-Gang
$ 7,282







 

Single Phase; 240V / 50-60 Hz Input; Open Frame
3040-5110 W5H 2.0 2.6 0.62 0-280  
$246
3040-5210 W5HBB 2.0 2.6 0.62 0-280 Ball Bearing
$289
3070-5110 W10H 4.0 5.2 1.25 0-280
$257
3070-5210 W10HBB 4.0 5.2 1.25 0-280 Ball Bearing
$391
3030-5120 W5HG2 6.0 7.8 1.87 0-280 Series
$461
3100-5110 W20H 8.0 10.4 2.5 0-280
$397
3100-5210 W20HBB 8.0 10.4 2.5 0-280 Ball Bearing
$542
3060-5220 W10HG2BB 10.0 13.0 3.12 0-280 Ball Bearing
$810
3130-5110 W30H 12.0 15.6 3.74 0-280
$645
3130-5210 W30HBB 12.0 15.6 3.74 0-280 Ball Bearing
$825
3100-5120 W20HG2 16.0 20.8 4.99 0-280 Parallel
$1,024
3090-5120 W20HG2 20.0 26.0 6.24 0-280 Series
$1,024
3130-5120 W30HG2 24.0 31.0 7.5 0-280 Parallel
$1,856
3160-5110 W50H 25.0 31.2 7.8 0-280
$1,037
3160-5210 W50HBB 25.0 31.2 7.8 0-280 Ball Bearing
$1,396
3120-5120 W30HG2 30.0 36.0 8.6 0-280 Series
$1,856
3130-5130 W30HG3 36.0 46.8 11 0-280 Parallel
$2,814
3160-5120 W50HG2 50.0 62.0 15.6 0-280 Parallel
$2,765
3160-5220 W50HG2BB 50.0 62.0 15.6 0-280 Ball Bearing - Parallel
$2,850
3160-5130 W50HG3 75.0 97.5 23.4 0-280 Parallel
$3,834
3160-5230 W50HG3BB 75.0 97.5 23.4 0-280 Ball Bearing - Parallel
$4,204
3160-5240 W50HG4BB 100.0 130.0 31.2 0-280 Ball Bearing - Parallel
$5,283
3160-5260 W50HG6BB 150.0 195.0 46.8 0-280 Ball Bearing - Parallel
$8,390







 

Single Phase; 240V / 50-60 Hz Input; Cased
3040-5111 W5HM 2.0 2.6 0.62 0-280  
$338
3040-5211 W5HBBM 2.0 2.6 0.62 0-280 Ball Bearing
$448
3070-5111 W10HM 4.0 5.2 1.25 0-280
$483
3070-5211 W10HBBM 4.0 5.2 1.25 0-280 Ball Bearing
$590
3030-5121 W5G2M 5.0 6.5 1.56 0-280 Series
$604
3100-5111 W20HM 8.0 10.4 2.5 0-280
$643
3060-5121 W10G2M 10.0 13.0 3.12 0-280 Series
$958
3130-5111 W30HM 12.0 15.6 3.74 0-280
$1,195
3100-5121 W20HG2M 16.0 20.8 4.99 0-280 Parallel
$1,449
3090-5121 W20HG2M 20.0 26.0 6.24 0-280 Series
$1,449
3160-5111 W50HM 20.0 31.0 7.45 0-280
$1,761
3160-5211 W50HBBM 20.0 31.0 7.45 0-280 Ball Bearing
$1,761
3130-5121 W30HG2M 24.0 31.2 7.5 0-280 Parallel
$2,385
3120-5121 W30HG2M 28.0 32.0 7.7 0-280 Series
$2,385
3130-5131 W30HG3M 36.0 46.8 11 0-280 Parallel
$3,480
3160-5121 W50HG2M 40.0 62.0 14.9 0-280 Parallel
$3,509
3160-5221 W50HG2BBM 40.0 62.0 14.9 0-280 Ball Bearing - Parallel
$3,565
3160-5131 W50HG3M 60.0 93.0 22.3 0-280 Parallel
$4,872
3160-5231 W50HG3BBM 60.0 93.0 22.3 0-280 Ball Bearing - Parallel
$5,253
3160-5241 W50HG4BBM 80.0 124.0 29.8 0-280 Ball Bearing - Parallel
$6,203
3160-5261 W50HG6BBM 120.0 186.0 44.6 0-280 Ball Bearing - Parallel
$9,154







 

Single Phase; 480V / 50-60 Hz Input; Open Frame
3040-5120 W5HG2 2.0 2.6 1.24 0-560 Series
$375
3040-5220 W5HG2BB 2.0 2.6 1.24 0-560 Series
$631
3070-5120 W10HG2 4.0 5.2 2.5 0-560 Series
$734
3100-5120 W20HG2 8.0 10.4 5 0-560 Series
$1,024
3130-5120 W30HG2 12.0 15.6 7.48 0-560 Series
$1,856
3160-5120 W50HG2 25.0 32.5 15.6 0-560 Series
$2,765
3160-5240 W50HG4BB 50.0 65.0 31.2 0-560 Parallel
$5,283
3160-5260 W50HG6BB 75.0 97.5 46.8 0-560 Parallel
$8,390







 

Single Phase; 480V / 50-60 Hz Input; Cased Unit
3040-5121 W5HG2M 2.0 2.6 1.24 0-560 Series
$620
3070-5121 W10HG2M 4.0 5.2 2.5 0-560 Series
$969
3100-5121 W20HG2M 8.0 10.4 5 0-560 Series
$1,449
3130-5121 W30HG2M 12.0 15.6 7.48 0-560 Series
$2,385
3160-5121 W50HG2M 20.0 31.0 14.9 0-560 Series
$3,509
3160-5241 W50HG4BBM 40.0 62.0 29.8 0-560 Parallel
$6,203
3160-5261 W50HG6BBM 60.0 91.0 44.7 0-560 Parallel
$9,154







 

Three Phase; 208V / 50-60 Hz Input; Open Frame
3040-5120 W5HG2 2.0 2.6 1.08 0-280 Open Delta
$375
3040-5220 W5HG2BB 2.0 2.6 1.08 0-280 Open Delta
$631
3010-5130 W2G3 2.4 3.1 1.29 0-240 Wye
$694
3070-5120 W10HG2 4.0 5.2 2.16 0-280 Open Delta
$734
3030-5130 W5G3 6.0 7.8 3.24 0-240 Wye
$652
3100-5120 W20HG2 8.0 10.4 4.32 0-280 Open Delta
$1,024
3060-5130 W10G3 10.0 13.0 5.4 0-240 Wye
$1,140
3130-5120 W30HG2 12.0 15.6 6.48 0-280 Open Delta
$1,856
3090-5130 W20HG3 20.0 26.0 10.8 0-240 Wye
$1,353
3160-5120 W50HG2 25.0 32.5 13.5 0-280 Open Delta
$2,765
3120-5130 W30HG3 30.0 36.0 15 0-240 Wye
$2,814
3150-5130 W50HG3 50.0 50.0 20.8 0-240 Wye
$3,834
3160-5240 W50HG4BB 50.0 65.0 27 0-280 Open Delta
$5,283







 

Three Phase; 208V / 50-60 Hz Input; Cased Unit
3040-5121 W5HG2M 2.0 2.6 1.08 0-280 Open Delta
$620
3010-5131 W2G3M 2.0 2.6 1.08 0-240 Wye
$801
3070-5121 W10HG2M 4.0 5.2 2.16 0-280 Open Delta
$969
3030-5131 W5G3M 5.0 6.5 2.7 0-240 Wye
$826
3100-5121 W20HG2M 8.0 10.4 4.32 0-280 Open Delta
$1,449
3060-5131 W10G3M 10.0 13.0 5.4 0-240 Wye
$1,285
3130-5121 W30HG2M 12.0 15.6 6.48 0-280 Open Delta
$2,385
3090-5131 W20HG3M 20.0 26.0 10.8 0-240 Wye
$2,177
3160-5121 W50HG2M 20.0 31.0 12.9 0-280 Open Delta
$3,509
3120-5131 W30HG3M 28.0 32.0 13.3 0-240 Wye
$3,480
3150-5131 W50HG3M 40.0 45.0 18.7 0-240 Wye
$4,872
3160-5241 W50HG4BBM 40.0 62.0 25.8 0-280 Open Delta
$6,203







 

Three Phase; 480V / 50-60 Hz Input; Open Frame
3040-5130 W5HG3 2.0 2.6 2.16 0-480 Wye
$693
3070-5130 W10HG3 4.0 5.2 4.32 0-480 Wye
$1,154
3100-5130 W20HG3 8.0 10.4 8.65 0-480 Wye
$1,353
3130-5130 W30HG3 12.0 15.6 13 0-480 Wye
$2,814
3160-5130 W50HG3 25.0 32.5 27 0-480 Wye
$3,834
3160-5260 W50HG6BB 50.0 65.0 54 0-480 Wye
$8,390







 

Three Phase; 480V / 50-60 Hz Input; Cased Unit
3040-5131 W5HG3M 2.0 2.6 2.16 0-480 Wye
$864
3070-5131 W10HG3M 4.0 5.2 4.32 0-480 Wye
$1,389
3100-5131 W20HG3M 8.0 10.4 8.65 0-480 Wye
$2,177
3130-5131 W30HG3M 12.0 15.6 13 0-480 Wye
$3,480
3160-5131 W50HG3M 20.0 31.0 25.8 0-480 Wye
$4,872
3160-5261 W50HG6BBM 40.0 62.0 51.5 0-480 Wye
$9,154







 

Single Phase; 120V / 400 Hz Input; Open Frame
3410-5110 M2 2.4 3.1 0.37 0-140  
$161
3410-5210 M2BB 2.4 3.1 0.37 0-140 Ball Bearing
$282
3430-5110 M5 6.0 7.8 0.94 0-140
$186
3430-5210 M5BB 6.0 7.8 0.94 0-140 Ball Bearing
$255
3460-5110 M10 10.0 13.0 1.56 0-140
$278
3460-5210 M10BB 10.0 13.0 1.56 0-140 Ball Bearing
$389
3490-5110 M20 20.0 26.0 3.12 0-140
$471
3490-5210 M20BB 20.0 26.0 3.12 0-140 Ball Bearing
$542







 

Three Phase; 120V / 50-60 Hz Input; Open Frame
3410-5120 M2G2 2.4 3.1 0.65 0-140 Open Delta
$380
3410-5220 M2G2BB 2.4 3.1 0.65 0-140 Ball Bearing
$536
3430-5120 M5G2 6.0 7.8 1.62 0-140 Open Delta
$422
3430-5220 M5G2BB 6.0 7.8 1.62 0-140 Ball Bearing
$590
3460-5120 M10G2 10.0 13.0 2.7 0-140 Open Delta
$692
3460-5220 M10G2BB 10.0 13.0 2.7 0-140 Ball Bearing
$881
3490-5120 M20G2 20.0 26.0 5.4 0-140 Open Delta
$1,088
3490-5220 M20G2BB 20.0 26.0 5.4 0-140 Ball Bearing
$1,184







 

Three Phase; 120V - 208V - 240V / 400 Hz Input; Open Frame
3410-5130 M2G3 2.4 3.1 1.3 0-140 Wye
$568
3410-5230 M2G3BB 2.4 3.1 1.3 0-140 Ball Bearing
$806
3430-5130 M5G3 6.0 7.8 3.24 0-140 Wye
$581
3430-5230 M5G3BB 6.0 7.8 3.24 0-140 Ball Bearing
$884
3460-5130 M10G3 10.0 13.0 5.4 0-140 Wye
$1,034
3460-5230 M10G3BB 10.0 13.0 5.4 0-140 Ball Bearing
$1,319
3490-5130 M20G3 20.0 26.0 10.8 0-140 Wye
$1,369







 

Portable Units - Cord Ended - Single Phase; 120V / 50-60 Hz
3030-5119 W5MT3 5.0     0-140  
$430
3038-5119 W8MT3 10.0

0-140
$619
3060-5119 W10MT3 10.0

0-140
$710
3090-5119 W20MT3 18.0     0-140  
$1,029







 

Portable Units - Cord Ended - Single Phase; 120V / 50-60 Hz - Ammeter
3030-5012 W5MT3A 5.0 - - 0-140 Meter Range 1/5A, 150V
$895
3060-5012 W10MT3A 10.0 - - 0-140 Meter Range 2/10A, 150V
$1,133
3090-5012 W20MT3A 18.0 - - 0-140 Meter Range 20A, 150V
$1,268







 

Portable Units - Cord Ended - single Phase; 120V / 50-60 Hz - Voltmeter
3030-5015 W5MT3VM 5.0     0-140 Meter Range 150V (Full Scale)
$704
3038-5015 W8MT3VM 10.0     0-140 Meter Range 150V (Full Scale)
$808







 

Portable Units - Cord Ended - Single Phase; 120V / 50-60 Hz - Wattmeter
3030-5013 W5MT3W 5.0     0-140 Meter Range 150/750W, 150V
$1,153
3060-5013 W10MT3W 10.0     0-140 Meter Range 300/1500W, 150V
$1,572







 

Portable Units - Cord Ended - Single Phase; 120V / 50-60 Hz;

Wattmeter and Ammeter
3030-5014 W5MT3AW 5.0     0-140 Meter 1/5A, 150/750W, 150V
$1,620







 

Portable Units - Cord Ended - Single Phase; 240V / 50-60 Hz
3040-5119 W5HMT3 2.0     0-280  
$548
3070-5119 W10HMT3 4.0

0-280
$738
3100-5119 W20HMT3 8.0     0-280  
$1,084







 

Portable Units - Cord Ended - Single Phase; 240V / 50-60 Hz; Ammeter
3100-5012 W20HMT3A 8.0 - - 0-280 Meter Range 10A, 300V
$1,373

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