Air-Cooled Models
The Air-Cooled Variable Transformer from BETA Power Controls LLP is a precision-engineered voltage control device designed for applications requiring smooth, accurate, and continuous voltage variation.Also known as a Variac, this transformer provides stepless control of output voltage from 0 to 117% of the input, ensuring distortion-free, pure sinewave output with up to 98% efficiency.
Built for reliability and ease of operation, the air-cooled model features a robust open or enclosed design, suitable for single-phase, two-phase, or three-phase systems.It is ideal for use in laboratories, educational institutions, testing facilities, and various voltage calibration applications.
Product Details
|
Features
|
Specification
|
|---|---|
|
Input Voltage
|
230V (Single Phase) / 415V (Three Phase)
|
|
Output Voltage Range
|
0 – 270V (Single Phase) / 0 – 470V or up to 1000V (Three Phase)
|
|
Cooling Type
|
Air Natural (AN)
|
|
Current Range
|
10A – 150A
|
|
Efficiency
|
Up to 98%
|
|
Waveform Distortion
|
Nil (Pure Sinewave Output)
|
|
Control Type
|
Manual or Motorized
|
|
Cooling System
|
Natural / Forced Air Cooled
|
|
Construction
|
Open / Enclosed / Bench or Panel Mounted
|
|
Duty Cycle
|
Continuous Operation
|
|
Insulation Class
|
Class F
|
|
Frequency
|
50 / 60 Hz ±3%
|
|
Ambient Temperature
|
0°C to 60°C
|
Key Features
- Compact & Lightweight – Space-saving design for easy installation
- Low Noise Operation – Air-cooled with silent performance
- Distortion-Free Output Waveform – Maintains pure sinusoidal output
- Long Mechanical Life – Heavy-duty brush and commutator system
- Minimal Maintenance – Periodic inspection only, no oil handling required
- Available in Single, Two, or Three Phase Models
Quality & Testing
- Built 100% in India
- IEC / EN / CE certified performance
- High-precision winding and brush alignment
- Factory-tested for safety, accuracy, and long life
Applications
- Electrical & Electronic Testing Laboratories
- Educational Institutions and Research Labs
- Quality Control and Burn-in Test Systems
- Lighting Control and Simulation Systems
- Furnace Testing and Control Systems
- DC Rectifier Input Regulation
Three Phase Air-Cooled Servo Voltage Stabilizer
Beta Power Controls in India?
17+ Years of Expertise
Industry Leadership & Innovation
Global Quality Certifications
ISO 9001:2015 compliant
Customization
Voltage ranges and models tailored to client needs
High Efficiency
98% energy efficiency, reduces power loss
Global Export Network
Strong presence in Middle East, Europe, Africa & Asia
After-Sales Support
Installation, service, and technical assistance
How to Order from Beta Power Controls?
Frequently Asked Questions
It is a voltage control device that allows smooth, continuous adjustment of AC voltage from 0 to the rated output without waveform distortion.
Over 98%, ensuring minimal energy loss and high accuracy.
Yes, it is designed for continuous duty with air natural cooling.
Only occasional brush inspection and cleaning — no oil or liquid maintenance.
Yes, available in manual and motorized versions for precision operation.
A pure sinewave, free from distortion or harmonic interference.
Single-phase, two-phase, and three-phase designs are available.