Transformers
Reliable transformer solutions for voltage conversion, power distribution, and electrical isolation applications.
Johsun Tec Transformers Manufacturer
- Power range: 100 VA up to 10 kVA (DT/ST) and 100 VA up to 5 kVA (STU).
- AC voltage levels: 110–220 V input/output, supporting 110 V and 220 V / 240 V markets.
- Frequency: Designed for 50/60 Hz networks.
- Topology: Toroidal core, single‑phase, step‑up/step‑down configuration.
- Power range: 500 VA–2 kVA (ZX) and 100 VA–10 kVA (TC/THG).
- Voltage: 110–220 V bidirectional conversion, suitable for imported equipment and multi‑voltage sites.
- Rated capacity: 40–1500 VA, per model.
- Voltage range: AC 50/60 Hz, input ≤ 500–1000 V, output ≤ 220–600 V, depending on configuration.
- Application: Control power for machine tools, lighting, and signal lamps.
- Capacity: 0.2 kVA–30 kVA (single‑ and three‑phase).
- Output range: Adjustable 0–130 V (or wider, depending on model).
- Regulation: Continuous, smooth tap‑free adjustment.
Automatic Voltage Converter Factory
With a production history since 2007, our facility in the Xiangyang Industrial Zone integrates advanced R&D with rigorous ISO9001:2008 standards. We ensure a 100% yield through multiple stages of technical debugging, delivering certified power solutions to over 20 countries worldwide.
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Download Our Transformers Catalog
Access our latest product catalog to explore the full range of voltage stabilizers and power regulation solutions. The catalog includes detailed specifications, model comparisons, technical parameters, capacity selection guidance, and customization options to help you choose the right solution for your market.
Inside the catalog, you will find:
- Relay Type, Servo Motor Type & Static Type Models
- Input/output voltage configurations
- Protection features and application scenarios
- OEM / ODM customization information
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What is the difference between a step‑up and step‑down transformer?
A step‑up transformer increases voltage from primary to secondary (e.g., 110 V → 220 V), while a step‑down transformer decreases voltage (e.g., 220 V → 110 V). The turns ratio between windings determines the direction and ratio of conversion.
Can I use a Johsun Tec transformer for 110 V and 220 V equipment?
Yes. DT/ST, STU, ZX, and TC/THG series support 110–220 V bidirectional conversion, with selectable input voltages (110/120/220/240 V) and dual‑output options in many models.
Are these transformers suitable for sensitive electronics?
Yes, particularly the toroidal models (DT/ST, STU, ZX, TC/THG), which provide clean, low‑EMI conversion ideal for computers, printers, medical devices, and lab instruments.
What is a JBK3 control transformer used for?
JBK3 series units supply stable, low‑voltage control power for machine tools, lighting circuits, and signal lamps in industrial environments.
How do TDGC2J manual voltage regulators work?
TDGC2J series are auto‑transformers with a sliding contact that allows continuous adjustment of output voltage from 0 V up to the maximum rating. They are widely used in labs, testing, and industrial R&D.
What capacity transformer do I need for my equipment?
As a rule of thumb, choose a transformer whose VA/kVA rating exceeds the total load VA/kVA by 20–25% to avoid overloading. Johsun Tec supports custom sizing when standard models do not match your exact voltage and load requirements.
Can you customize transformers for different input/output voltages?
Yes. Johsun Tec offers winding solutions for non‑standard voltages and frequencies, allowing integration into global or special‑purpose power systems.