Isolation Circuit
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This page explains how Isolation Transformer is classified within Electrical Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A transformer that electrically isolates two circuits while allowing power transfer between them.
Technical details and manufacturing context for Isolation Transformer
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Rated Power | 0.5–1000 kVA | Select based on load demandIEC 60076-1 |
| Primary Voltage | 220–480 V AC | Standard grid voltagesIEC 60076-1 |
| Secondary Voltage | 110–480 V AC | Output voltage for loadIEC 60076-1 |
| Frequency | 50–60 Hz | Mains frequencyIEC 60076-1 |
| Efficiency | 95–99 % | At full loadIEC 60076-1 |
| Insulation Class | B–H class | Thermal endurance of insulationIEC 60085 |
| Dielectric Strength | 2.5–5 kV | Test voltage for 1 minuteIEC 60076-3 |
| Operating Temperature | -20–50 °C | Ambient temperature rangeIEC 60076-1 |
| Humidity Range | 20–90 % RH | Non-condensingIEC 60068-2-78 |
| Protection Rating | IP20–IP54 IP | Depends on enclosureIEC 60529 |
| Core Material | M4–M6 grade | Grain-oriented silicon steelASTM A876 |
| Winding Material | C10100–C11000 grade | Electrolytic copperASTM B187 |
| Weight | 10–5000 kg | Depends on power rating |
| Dimensions (L×W×H) | 200×150×200–2000×1500×2000 mm | Varies with power |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Atmospheric (N/A for pressure, enclosure dependent for environmental protection) |
| other spec: | Input voltage range, output voltage range, frequency (50/60 Hz), power rating (kVA), isolation voltage (kV), efficiency (%) |
| temperature: | -40°C to +155°C (ambient operating range, insulation class dependent) |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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The primary function is to provide galvanic isolation between input and output circuits, preventing direct electrical connection while allowing power transfer. This protects equipment from ground loops, voltage spikes, and electrical noise.
Select the rated power (kVA) based on the total load demand of the connected equipment. Ensure the transformer's rated power is equal to or greater than the maximum load, considering any future expansion. Refer to IEC 60076-1 for guidance.
Primary voltages are typically 220–480 V AC, secondary voltages 110–480 V AC, and frequency 50–60 Hz. These are standard ranges; verify the exact values for your model with the manufacturer.
Regular inspection for insulation resistance, winding temperature, and signs of overheating or moisture is recommended. Follow the manufacturer's maintenance schedule and ensure the transformer operates within specified temperature and humidity ranges.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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