Australian-Made. Built to Last
All Southern transformers are locally designed and manufactured for long service life, with full compliance to Australian Standards.
Custom-Built for Industrial Demands
From commercial industries to major sectors, we tailor each transformer to meet the real-world needs of your application – no limitations.
Delivered to Your Schedule without Compromise
We understand project timelines matter – Southern delivers transformers to meet your schedule, fast or slow, without cutting corners.
5-year Warranty, 25+ year design life
Every transformer is designed and built to operate continuously at rated power for 25+ years, backed by an industry-leading standard 5-year warranty.
Why choose an Isolation Transformer
An isolation transformer, as the name suggests, isolates your equipment, circuitry, or device from the main power source, protecting your equipment and personnel. The primary advantages of an Isolation Transformer over an Auto Transformer are safety, surge reduction, noise reduction and better overall power quality.
Isolation – or isolating – transformers are a more reliable product than modern solid-state power control devices. Solid-state drives generate extreme stresses due to the harmful harmonic content they cause and the high mechanical strain they place on power supplies.
Southern Electronic Services have built a huge range of Isolation Transformers over the years. The quality of our workmanship, thorough testing procedures, and shared expertise allow us to build you a custom isolation transformer to your specific requirements, fast. SES Isolation Transformers are designed, built and tested to AS/NZS 61558.2-4.
If you’re not sure of your transformer requirements, please give us a call 03 9706 4202 and speak to our team.
Manufactured to Your Specifications
Electrical Capabilities:
- Power rating: 100VA up to 600kVA
- Input voltage: up to 3300V (designed to suit your application)
- Output voltage: up to 3300V, multiple secondary windings available
- Optional electrostatic screening between windings
Construction & Materials:
- Enamelled copper windings
- Electrical Steel core
- Insulation classes: Class F (155°C) or Class H (180°C)
- Tough varnish impregnation system
- Brass earth stud provided for connection
- Screw terminals or copper bar terminals (alternative terminations available)
- Optional switchgear integration
Design & Performance:
- Designed for low load regulation
- Enclosure options: open, IP23, IP65
Transformer Solutions Made Simple
Provide your project details and we’ll respond promptly with expert guidance tailored to your needs.
We combine industry expertise with direct technical support, because we don’t take the trust you place in us lightly
Every transformer we build supports critical infrastructure — from mining operations, to data centres and industrial facilities.
We appreciate the pressure around compliance, lead times, and performance, and understand that transformer specifications are somewhat foreign to many.
That’s why we work closely with you from first enquiry through to delivery, ensuring the right design, the right specification, and long-term reliability.
Testimonials
What Clients Say About Us
Frequently Asked Questions
Approximately 50 VA to 500 kVA, depending on the design and application.
No, prefer to leave this off FAQ
Yes. We offer shielded designs.
Typically, our open-type transformers are pad-mount, for fitting into electrical cabinets or junction boxes.
We can fit transformers into IP23 (indoor) or IP65 (outdoor) enclosures, should you require. Wall-mount enclosures are available for smaller units.
Transformer Solutions Made Simple
Provide your project details and we’ll respond promptly with expert guidance tailored to your needs.
