Electrical Transformers

Professional Electrical Transformers – Custom French Manufacturing

At ABL Transfo, we have been designing and manufacturing
electrical transformers for over 30 years, serving demanding
industrial, tertiary and technical environments. All our transformers are
manufactured in France, individually tested at the end of the production process,
and available in standard or custom-built versions.

What is an electrical transformer?

An electrical transformer is a passive device that modifies the voltage
of an alternating current without changing its frequency. It is essential for adapting
power supply to equipment requirements, ensuring personnel safety, and providing
electrical isolation between different networks.

Electrical transformers play a key role in many sectors, including power distribution,
industrial automation, machine tools, elevators, railway infrastructure, and industrial
or building electrical installations.

Our expertise in electrical transformers

ABL Transfo offers a comprehensive range of electrical transformers,
designed to meet both standard requirements and highly specific technical specifications.

🔹 Single-phase transformers

• Standard power ratings from 50 VA to 20 kVA (higher power on request – contact us)
• Custom input and output voltages
• Open-frame version or enclosure IP23, IP54 or IP65
• Connection via screw terminals or cables

🔹 Three-phase transformers

• Power ratings up to several hundred kVA
• Adapted winding connections: delta, star (wye), zig-zag
• Output with or without neutral depending on application
• Thermal protection, varnish class F or H

🔹 Isolation transformers

• Galvanic isolation between primary and secondary
• Enhanced personnel safety and protection of sensitive equipment
• Operation at 50 Hz, 60 Hz or specific frequency

🔹 Autotransformers

• Cost-effective solution for simple voltage adaptation
• Single-phase or three-phase versions
• High efficiency and reduced footprint

Why choose ABL Transfo electrical transformers?

• French manufacturing in our workshop located in the south of France
• Short lead times, including for custom-built transformers
• Individual quality control on every transformer
• Premium materials: low-loss laminations, high-purity copper conductors
• Personalized technical support and engineering assistance
• Proven expertise across multiple industries: railway, energy, automation, elevators

Custom-built transformers for your specific projects

Do you need a transformer with specific dimensions, a
special voltage, or particular environmental constraints
(IP65, marine, railway, harsh environments)?
Our engineering team designs custom electrical transformers
based on your technical specifications.

👉 Send us your requirements and receive a technical and commercial response
within 24 hours.

Order your electrical transformers online

Our online store provides fast access to our range of
standard electrical transformers:

• View detailed technical datasheets
• Download drawings and compliance certificates
• Place secure orders in just a few clicks

Visit our
electrical transformers online store
to discover our full range of available products.

ABL Transfo – Reliability at the core of every electrical transformer

For more than three decades, ABL Transfo has been supporting industrial clients and system
integrators with reliable and long-lasting electrical solutions. Choosing an ABL transformer
means choosing precision, durability, and a
responsive industrial partner with a human-scale approach.