Low Voltage Dry Type Transformer Manufacturers – Indoor Transformer Factory
Subian Electric manufactures low voltage dry type transformers from 5 kVA to 500 kVA at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have supplied power equipment to 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we build LV dry-type units for commercial, industrial and infrastructure applications with factory pricing and complete documentation.
Send your capacity, voltage and application. Our export team will respond with a quotation and lead time.
Since 2019 · 50,000m² · 350+ Staff
Low Voltage Dry Type Transformers We Manufacture
LV dry type transformers from 5 kVA to 500 kVA – step-down, isolation and distribution units for commercial buildings, plant rooms and industrial control systems.
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10kV Dry-Type Transformer-SCBH series Amorphous Alloy
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20-35KV Dry-Type Transformer
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20-35KV SCB Series Epoxy Resin Dry-Type Transformer
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20KV Oil-immersed Distribution Transformer
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35KV Oil-immersed Power Transformer
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6-10KV Oil-Immersed Power Distribution Transformer
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Current Transformer –10KV Indoor High Voltage
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Current Transformer–LMZK Wound Current Transformer300/5a
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Current Transformer–LSY-10 transformer Integrated CT
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current transformer–LXK high voltage zero sequence
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dry type distribution transformer-6-10 KV SCB series epoxy resin cast
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Electrical Transformers–JDZ – 10 Power Voltage
What Is a Low Voltage Dry Type Transformer?
A low voltage dry type transformer operates at voltages below 1 kV – typically 400 V to 230 V – using air or cast-resin insulation. It is used for isolation, voltage conversion and local distribution inside buildings and plants.
LV dry-type units are found in every commercial building, industrial plant and infrastructure site – powering control systems, lighting, HVAC and sensitive equipment that need clean, isolated power.
- 5 kVA – 500 kVA – capacity range for LV distribution and isolation.
- Dry-type construction – no oil – safe for indoor and occupied areas.
- Isolation & step-down – clean power for sensitive and control equipment.
- 50,000m² factory – in-house winding, drying, assembly and testing.
- 350+ employees – engineering and export teams per order.
- OEM / ODM & wholesale – custom branding, packaging and volume pricing.
Main Types of Low Voltage Dry Type Transformers
We manufacture three LV dry-type types:
Distribution type
Steps 400 V to 230 V for building and plant distribution.
Isolation type
1:1 isolation with electrostatic screen for sensitive loads.
Cast resin LV type
Encapsulated windings for harsh or high-humidity environments.
Low Voltage Dry Type Transformer Specifications
| Parameter | Specification |
|---|---|
| Rated voltage | 0.4 kV / 0.23 kV |
| Rated capacity | 5 kVA – 500 kVA |
| Insulation | F / H class |
| Frequency | 50/60 Hz |
| Enclosure | IP20 – IP54 |
| Standard | IEC 60076 / GB 1094 |
LV Dry Type Transformer Manufacturing: Full Factory Control
From winding to assembly, inspection and delivery – every LV unit is built and tested at our Xuzhou facility, with routine tests on every transformer.
Production Workshop
Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.
Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports supporting project approval and market certification.
Materials & Components
Core materials, windings and components are checked against the approved bill of materials on every production run.
OEM / ODM / Agency Supply
Custom branding, packaging and configurations for global partners – from nameplate to complete product design – supported by a dedicated export team.
OEM/ODM & Wholesale Supply of LV Dry Type Transformers
Brand or resell LV dry-type units with custom nameplates, packaging and documentation.
OEM / ODM
Factory-Direct
Custom branding, packaging and product variants built on our standard platforms – from a nameplate to full product design.
Custom nameplate · Custom packaging · Full test docs
Wholesale Supply
Volume Pricing
Factory pricing with flexible container quantities, mixed models per container and reliable global shipping for volume buyers and importers.
Container MOQ · Mixed models · Global shipping
Distributor Support
Channel Partners
Dedicated account management, technical documentation and priority production for distributors and project clients.
Account manager · Sales material · Priority lead times
Dry Type vs Encapsulated LV Transformers
Open-wound LV transformers are economical and fine in clean, dry environments. Cast-resin or encapsulated units protect windings from dust, moisture and mechanical damage where conditions are harsher.
We build both and recommend the construction based on your installation environment, not a one-size-fits-all catalogue.
Choosing a Low Voltage Dry Type Transformer Manufacturer
For LV transformers, consistency and documentation matter more than exotic engineering. Look for a manufacturer with stable production, routine test records and reliable delivery.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.
Send your capacity and application – we confirm the design and price before production.
Certifications & Quality Assurance
Our LV dry-type transformers are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and routine testing on every unit.
Product Certifications
Low Voltage Dry Type Transformer FAQ
Answers to the questions buyers ask most about LV dry type transformers.
What is a low voltage dry type transformer used for?
What is the difference between distribution and isolation transformers?
Can you build custom LV transformers?
What tests are performed?
What is the minimum order quantity?
Can you support OEM branding?
Contact Subian
Need the Right Specification?
Tell us your target market, product type, quantity and technical requirements. Our team will help you identify a suitable configuration for your project.