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Industrial Control & Automation Voltage Stepping

Control Transformers

High-performance AC Industrial Control Transformers from 15 VA to 30 kVA engineered with 100% electrolytic copper windings and low-loss CRGO cores to supply stable, isolated low-voltage power to contactors, relays, timers, and PLC automation circuits.

Step-Up / Step-Down Transformer
Phase
1-Phase & 3-Phase
Winding
99.9% Copper
Insulation
Mylar / Nomex / Class F
Efficiency
> 97%
Cooling
Air / Oil Cooled
Duty Cycle
Continuous 24x7

What is an Industrial Control Transformer?

An Industrial Control Transformer (also called a Machine Tool Transformer) is an isolation transformer designed to step down higher primary distribution voltages (such as 415V or 230V AC) to standardized low control voltages (such as 12V, 24V, 48V, 110V, or 220V AC). It provides safe, clean, and isolated power for contactor coils, relays, solenoids, indicator lamps, and programmable logic controllers (PLCs) in motor control centers (MCC) and industrial automation panels, handling high inrush currents without excessive secondary voltage dip.

Applications

Imported Industrial Machinery
Matching US/Japanese/European machine voltage standards (e.g. 200V, 208V, 460V, 480V) to Indian 415V mains.
Export Equipment Testing
Stepping up/down factory testing power to verify machinery before overseas customer dispatch.
Commercial Facilities
Adapting internal building voltages for specialized HVAC, lighting, and kitchen equipment.
Renewable Energy Systems
Stepping up solar inverter AC outputs to plant or distribution grid voltage levels.

Technical Specifications

Parameter Specification Details
Configuration Type Delta / Star / Auto Transformer
Input Voltage Window 230V Single Phase / 400V–415V 3-Phase (Or custom as requested)
Output Voltage Range 110V–240V 1-Phase / 200V, 380V, 400V, 415V, 480V 3-Phase (Model dependent)
Winding Material 99.9% Electrolytic Grade Copper Winding
Insulation Materials Mylar, Kraft Paper, Nomex, Varnish (Class F / Class H)
Core Material High-grade CRGO (Cold Rolled Grain Oriented) Lamination
Losses at No Load Below 2%
Load Regulation < 4%
Insulation Resistance Minimum 1000 MΩ (@ 500V DC)
Breakdown Strength Withstands 2.5 kV for 1 minute
Cooling Options Air Cooled / Oil Cooled
Duty Cycle 100% Continuous 24x7 Duty Cycle

Engineered For Your Power Requirements

Hindustan Stabilizers custom builds Step-Up and Step-Down Transformers for any voltage ratio combination (such as 415V to 200V, 415V to 480V, 220V to 380V, or 110V step-downs). We manufacture both auto-transformer and double-wound isolation configurations in Air Cooled or Oil Cooled enclosures.

Why Hindustan Stabilizers

Industrial Engineering
Engineered turns-ratio calculation and high thermal insulation for continuous industrial operation.
Application-Focused Solutions
Custom designed to power imported Japanese, US, or European CNC and manufacturing lines.
Quality Components
100% electrolytic copper windings and Nomex/Mylar insulation for lowest operating heat.
Technical Support
Over 30 years of manufacturing experience assisting with voltage transformation calculations and installation.

Frequently Asked Questions

What is the difference between a Step-Up and a Step-Down Transformer?
A Step-Up Transformer increases secondary output voltage above primary input voltage. A Step-Down Transformer decreases secondary output voltage below primary input voltage.
Why do imported machines require a Step-Down or Step-Up transformer?
Machinery manufactured in the USA (480V/208V), Japan (200V), or Europe (380V) operates on different voltage standards than Indian 415V mains. A transformer converts Indian line voltage to match the machine's exact rating.
Can a Step-Up / Step-Down transformer be built with isolation?
Yes. We manufacture both standard auto-transformer models and double-wound isolation step-up/down models for complete electrical noise isolation.

Need the Right Transformer for Your Application?

Tell us your machine's required operating voltage, kVA load rating, input utility voltage, and phase. Our engineers will recommend the exact transformer.