PRODUCTS > ISOLATION TRANSFORMERS
Custom Isolation Transformers, Built for Clean, Safe Power
Pacific Transformer designs and builds custom isolation transformers with true galvanic separation — 1:1 or any ratio you need, single-phase or three-phase, electrostatically shielded and medical-grade designs from a few VA up to 750 kVA.
Free engineering designs. Quotes in 24 hours. Prototypes in 48. Catalog pricing on custom work.
Wound to Spec
Isolation Transformers, Wound to Spec
An isolation transformer separates its primary and secondary windings completely, so there is no direct electrical path between the supply and the load. That break does three things at once: it removes the ground reference that makes a shock hazard, it blocks common-mode noise and ground loops, and it lets you derive a new, cleanly bonded neutral for sensitive equipment.
We wind 1:1 isolation transformers and custom ratios in 480, 240, 208, and 120 V, single-phase or three-phase, with electrostatic (Faraday) shielding between windings where noise rejection or leakage current is critical — including medical-grade designs. Our engineers spec shielding, insulation system, and enclosure for free, and every unit is individually hipot- and ratio-tested before it ships.
Applications
Where Isolation Transformers Are Used
Wherever equipment has to be separated from the supply — for patient safety, for noise rejection, or for a clean, separately derived ground.
Medical Equipment
Medical-grade isolation with controlled leakage current for patient-vicinity equipment.
Sensitive Electronics & Labs
Clean, separately derived power for instrumentation, test benches, and precision gear.
Industrial Noise Rejection
Break ground loops and block common-mode noise between plant supply and control gear.
IT & Data
Isolated, shielded power feeding server rooms, network closets, and critical loads.
Keep Exploring
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Industries Served
From NASA payloads to guitar amplifiers, Pacific Transformer's custom magnetics power some of the most demanding applications in the world. Our engineering team has deep experience across industries where compliance, performance, and reliability aren't optional — they're required.
FREQUENTLY ASKED QUESTIONS
Isolation Transformers
Get a Quote
A few questions in — a quote back in one business day.
Our quoting system walks you through your project one question at a time — voltages, quantities, application — and builds your drawings as you go. A PACTRAN applications engineer stands behind every quote.
1DAY
Quote turnaround
Pricing and lead time within 1 business day
2DAYS
Prototype turnaround
A wound, tested prototype in 2 business days
Prefer to talk it through? 800-325-0501
Start your quote
Takes about 5 minWe'll ask, for example
What input voltage does your design see?
- 01
Describe your project. In your own words — give us what you know.
- 02
Answer a few guided questions. We only ask what your quote needs.
- 03
Get your quote. Pricing, lead time, and preliminary drawings — reviewed by an engineer.