
Variable
Auto Transformer
(Variac Slidac Stelltransformator)
.Produced by YuHseng Electric Co., Ltd
An auto-transformer is an electrical transformer with only one winding. The "auto" (Greek for "self") prefix refers to the single coil acting on itself and not to any kind of automatic mechanism. Variable auto-transformer means an auto-transformer can be adjusted output voltage range. Adjustable auto-transformer in general be used in voltage control applications including AVR (adjustable voltage regulator), Voltage Regulator, Motor manipulator, Torque motor, Motor control, Apparatus probe, Product test, Lab test facility, High volt regulated motor manipulator, and so on.
Description
- The terrific design and assembling convert input voltage to output without waveform distortion.
- Multi-model lineup meets the varied industry requirements.
- Handy and compact design for easy installation.
- All products are examined by complicate QC test.
Features
- Adjusts AC output voltage continuously and efficient heat dissipation.
- High quality brush provides long life time for frequent adjustment.
- Minimize the spark and contact resistance.
- The outstanding synthetic resin of knob and shaft perform well insulation.
- Each coil has pass prevention test to prevent damage due to high temperature.
- Customize is input and output available
Applications
Adjustable autotransformer in general be used in voltage control applications including AVR (adjustable voltage regulator), Voltage Regulator, Motor manipulator, Torque motor, Motor control, Apparatus probe, Product test, Lab test facility, High volt regulated motor manipulator, and so on.
Product Shape


Variac 360° VR
End
Knob Type
a. Front Side Knob Assembling (Standard): applied on outside of machines, panel, table use
b. Back Side Knob Assembling (Opposed): applied on inside of machines and wiring plates
※ Please Specify in PO

Product Model
Single Phase
For details, please click model No. or below Product Icon
Customize input/output is available. Max Amp may varied due to input/output. Please contact us for final specification confirmation.
Single Phase 1400 Series Input 380V; Others |
||
No. | Max KVA | Max Amp |
YH-1401 | 0.38 | 1 |
YH-1402 | 0.76 | 2 |
YH-1403 | 1.14 | 3 |
YH-1405 | 1.9 | 5 |
YH-1407 | 2.66 | 7 |
YH-1410 | 3.8 | 10 |
YH-1415 | 5.7 | 15 |
YH-1420 | 7.6 | 20 |
YH-1425 | 9.5 | 25 |
Single Phase 1400 Series Input 440V; Others |
||
No. | Max KVA | Max Amp |
YH-1401 | 0.44 | 1 |
YH-1402 | 0.88 | 2 |
YH-1403 | 0.44 | 3 |
YH-1405 | 0.44 | 5 |
YH-1407 | 0.66 | 7 |
YH-1410 | 0.66 | 10 |
YH-1415 | 1.1 | 15 |
YH-1420 | 1.54 | 20 |
YH-1425 | 2.2 | 25 |
Three Phase
For details, please click model No. or below Product Icon
Customize input/output is available. Max Amp may varied due to input/output. Please contact us for final specification confirmation.
Three Phase 300 Series Input 220; 230; 240V; Others |
||
No. | Max KVA | Max Amp |
YH-305(S) | 1.9 | 5 |
YH-305(L) | 1.9 | 5 |
YH-308 | 3.04 | 8 |
YH-310 | 3.8 | 10 |
YH-312 | 4.57 | 12 |
YH-315 | 5.71 | 15 |
YH-320(S) | 7.62 | 20 |
YH-320(L) | 7.62 | 20 |
YH-325 | 9.52 | 25 |
YH-330 | 11.4 | 30 |
YH-335 | 13.3 | 35 |
YH-340 | 15.2 | 40 |
Three Phase 3400 Series Input 380V; Others |
||
No. | Max KVA | Max Amp |
YH-3402(S) | 1.31 | 2 |
YH-3402(L) | 1.31 | 2 |
YH-3403(S) | 1.97 | 3 |
YH-3403(L) | 1.97 | 3 |
YH-3405 | 3.29 | 5 |
YH-3408 | 5.26 | 8 |
YH-3410 | 6.58 | 10 |
YH-3415 | 9.87 | 15 |
YH-3420 | 13.2 | 20 |
YH-3425 | 16.5 | 25 |
YH-3430 | 19.7 | 30 |
Three Phase 3400 Series Input 440V; Others |
||
No. | Max KVA | Max Amp |
YH-3402(S) | 1.52 | 2 |
YH-3402(L) | 1.52 | 2 |
YH-3403(S) | 2.28 | 3 |
YH-3403(L) | 2.28 | 3 |
YH-3405 | 3.81 | 5 |
YH-3408 | 6.09 | 8 |
YH-3410 | 7.62 | 10 |
YH-3415 | 11.4 | 15 |
YH-3420 | 15.2 | 20 |
YH-3425 | 19.1 | 25 |
YH-3430 | 22.9 | 30 |
Manufacturer

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