15 kVA Variac Transformer, Single Phase

SKU: PH-VT-15K
$2,079.09
● Substantial 15kVA-rated capacity with 48A output current. ● Specifically configured for 220V rated input voltage and 50Hz working frequency. ● Delivers 48A rated output current across the 0-250V adjustment range. ● Direct sale by the factory eliminates intermediaries. ● Good performance at accessible pricing with streamlined ordering and support.
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⏱️ Delivery: 6-12 days
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Overview

The 15 kVA single-phase variac transformer is a high-power adjustable AC voltage regulator engineered for industrial environments requiring stable and high-current output. With a rated output current of 48A, this heavy-duty variable autotransformer provides reliable voltage control for generator systems, industrial production lines, and power distribution testing. Its optimized internal copper winding structure improves conductivity and minimizes energy loss, making the 15 kVA variac a dependable solution for long-term operation. The robust metal housing enhances mechanical strength while assisting heat dissipation during high-load operation. As a professional-grade industrial variac voltage regulator, this model supports stable performance in 50Hz power supply environments and can be customized to meet special capacity requirements.

15 kVA single-phase variac transformer feature

Feature

  • 48A Extreme Current Capacity: The 48A-rated output current positions this unit for most powering large-scale machinery, industrial heating systems, high-power rectifier banks, and substantial sections of facility lighting or production lines.
  • Generator Output Optimization: Purpose-engineered for 220V 50Hz generator systems. Enables precise voltage regulation of large generator output before distribution to sensitive equipment, variable-speed drives, or synchronized multiple loads.
  • Smooth Pressure Regulation Mechanism: Advanced carbon brush and commutator engineering deliver seamless 0-250V adjustment.
  • Long Life High Quality Construction: Built for extended service life in demanding power supply places. Robust materials and quality workmanship ensure reliable performance over the years.
 

Details

  1. Hand wheel
  2. Instrument panel
  3. Housing
  4. Basing
  5. Handrail
  6. Voltage meter
  7. Groundwire position
  8. Reactor protective housing
15 kVA single-phase variac transformer details
Specs
Phase 1-Phase
Rated Capacity 15 kVA
Rated Input Voltage 220V
Rated Output Voltage 0~250V
Frequency 50/60Hz
Max Output Current 48A
Usage SVC
Current Type AC
Type Contact Type Regulators
Actual Output Current (Actual output voltage * rated current) / maximum output voltage
Dimension (LĂ—WĂ—H) (370*310*640) mm
Weight 46 kg

 

Note: Support the split phase (L1, L2+N, G). Please contact us.

Application
Variac voltage regulator for machine speed control

Machine Speed Control

Variac voltage regulator for mechanical voltage boost

Mechanical Voltage Boost

Variac voltage regulator for current control

Current Control

Variac voltage regulator for withstand voltage test

Withstand Voltage Test

FAQ

Q. What specific large-scale generator applications require the 48A capacity of this 15kVA variac?

The 48A/15kVA capacity is essential for: 

  • Large standby generator systems—regulating output for entire commercial building sections.
  • Industrial backup power—stabilizing voltage for manufacturing lines during grid outages.
  • Generator load bank testing—simulating substantial loads up to 15kVA for commissioning and maintenance.
  • Off-grid industrial facilities—controlling power distribution from primary generation sources.
  • Multiple high-draw equipment—simultaneously powering several large motors, heaters, or rectifiers from a single regulated supply.
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