Description
Encapsulated Toroidal Transformer – Fully Epoxy Encapsulated Potted Toroidal Transformer
Overview Of Encapsulated Toroidal Transformer
Our epoxy fully encapsulated toroidal transformer adopts integrated epoxy resin potting technology, completely sealing the internal silicon steel ring core and enameled windings inside a matte black insulated housing.
Different from bare open toroidal transformers, this fully potted encapsulated toroidal transformer delivers outstanding waterproof, dustproof, shockproof and mute performance. It meets high safety isolation standards for medical power supplies, industrial control equipment, Hi-Fi audio amplifiers and monitoring power supplies. This low-frequency transformer works at 50/60Hz, different from SMPS high frequency transformer.
Key Characteristics Of Encapsulated Toroidal Transformer
1. Full Sealed Epoxy Encapsulation
2. Ultra Low Vibration & Noise Free Operation
3. Excellent Electrical Isolation & High Safety
4. Wide Operating Environment
6. Fully Customizable Parameters
Specification Of Encapsulated Toroidal Transformer
| Parameter | Technical Data |
|---|---|
| Core Material | Silicon Steel Toroidal Core |
| Potting Material | Thermal Conductive Insulating Epoxy Resin |
| Custom Power Range | 10VA ~ 2000VA |
| Input Voltage | 110V / 220V / Dual 110-220V Customizable |
| Output Mode | Single / Dual / Multi AC Output Custom |
| Operating Frequency | 50Hz / 60Hz |
| Operating Temperature | -40℃ ~ +125℃ |
| Storage Humidity | 30% ~ 95% Non-Condensing |
| Insulation Class | Class B / Class F Optional |
| Installation Type | Vertical Flange Mount |
Application Fields Of Encapsulated Toroidal Transformer
- Medical isolation power supply
- Industrial control equipment
- Hi-Fi audio amplifier
- Monitoring & surveillance power supply
- Outdoor instrumentation equipment
Comparison with Bare Toroidal Transformer
- Bare Toroidal Transformer: Windings exposed, easy dust accumulation, obvious vibration noise, poor moisture resistance, extra insulating housing required.
- Epoxy Potted Toroidal Transformer: One-piece sealed shell, waterproof & dustproof, low vibration noise, integrated mounting flange, high safety insulation, lower total system cost.
Custom Service Of Encapsulated Toroidal Transformer
We support customized encapsulated toroidal transformer on voltage ratio, power size, lead wire and mounting structure according to your technical drawings.
Appearance Description Of Encapsulated Toroidal Transformer
Our encapsulated toroidal transformer adopts high-performance manganese-zinc ferrite and pure copper enameled wire winding, which can maintain stable insulation performance under long-term continuous operation. All our encapsulated toroidal transformers are manufactured and tested strictly in accordance with the safety standards issued by IEC, the International Electrotechnical Commission, to ensure safe power isolation for medical, audio and industrial control equipment. The fully sealed epoxy potting shell effectively reduces electromagnetic leakage and hum noise, making it the ideal compact power transformer for PCB embedded installation.
You may explore our full lineup of custom toroidal transformers for more power‑rating and encapsulation options to match your project requirements.
FAQ for Encapsulated Toroidal Transformer
Q1: What is an epoxy encapsulated toroidal transformer?
Q2: Can I use an encapsulated toroidal transformer for medical equipment?
A: Yes. Our epoxy encapsulated toroidal transformer for medical equipment provides reliable electrical isolation, meets strict safety standards for medical isolation power supplies, and works steadily in sensitive medical working environments.
Q3: Do you supply waterproof encapsulated toroidal transformer 50/60Hz?
A: Sure. Our standard waterproof encapsulated toroidal transformer runs at 50/60Hz low frequency. The fully sealed epoxy structure prevents moisture intrusion, suitable for indoor and mildly humid installation scenarios.
Q4: Is there low noise encapsulated toroidal audio transformer for Hi-Fi system?
A: We offer low noise encapsulated toroidal audio transformer, also isolated encapsulated toroidal transformer for Hi-Fi amplifier. Epoxy potting suppresses core vibration effectively to avoid hum interference for audio playback.
Q5: Can you make custom encapsulated toroidal power transformer?
A: Yes. We support custom encapsulated toroidal power transformer. We can adjust power rating, input/output voltage, wiring terminals, mounting size and housing according to your technical specifications.
Q6: Is encapsulated toroidal transformer suitable for industrial control?
A: Absolutely. Encapsulated toroidal transformer for industrial control adopts fully potted construction. It resists dust, corrosive gas and vibration, stable for long-time operation of industrial control equipment.
Q7: What are the advantages of fully potted encapsulated toroidal transformer?
A: This shockproof fully potted toroidal transformer realizes waterproof, shockproof and insulation protection. It reduces hidden risks of short circuit and insulation failure under harsh working conditions.
Q8: What is the difference between isolated encapsulated toroidal transformer and ordinary open toroidal transformer?
A: The isolated encapsulated toroidal transformer for Hi-Fi amplifier, medical and industrial equipment has enhanced dielectric strength. The epoxy encapsulation improves isolation safety, while bare transformers lack moisture and mechanical protection.
Details

Front oblique shot of fully epoxy sealed toroidal power transformer with integrated metal mounting flange for vertical cabinet installation











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