الوصف
Johsun Voltage Converter ST 5000W 110V/220V
The Johsun DT/ST 5000W Voltage Converter is a high-performance step-up and step-down transformer designed to seamlessly convert between 110V and 220V power sources. Perfect for home, office, and industrial applications, it delivers stable and reliable power while protecting your devices from voltage fluctuations.
المواصفات الفنية
- Power Rating: 5000W
- Input Voltage: 110–120VAC / 220–240VAC (custom voltages available)
- Output Voltage: 220–240VAC / 110–120VAC (custom voltages available)
- Phase: Single-phase
- Input Connection: Plug or Terminal
- Built-in Socket: Yes, convenient for multiple devices
- Efficiency: Up to 80%
- Frequency: 50/60Hz
- Operating Temperature: 0℃ ~ +40℃
- Protection: Fuse, MCB, or Circuit Breaker for safe operation
الميزات الرئيسية
- Bidirectional Voltage Conversion – Effortlessly convert 110V to 220V and vice versa
- High Reliability – Provides stable output to protect your devices from damage
- Advanced Safety – Multiple built-in protections against overload, short circuit, and voltage spikes
- Wide Applications – Suitable for household appliances, office equipment, and industrial machines
- Customizable OEM/ODM – Support for customized solutions with MOQ
الضمان والدعم
- Warranty: 12 months
- Spare Parts: Available upon discussion
- OEM/ODM Services: Custom solutions welcomed
التطبيقات الموصى بها
- Home Appliances: Air conditioners, washing machines, rice cookers
- Industrial Equipment: Small machinery, laboratory instruments
- Office Equipment: Printers, computers, and peripherals
■ How to Choose This Transformer
Five kilovolt-amperes is the point at which a step-down converter stops being plugged in and starts being wired in, so the calculation matters more than the shopping list. Total the input wattage of everything the secondary will feed, allow for diversity, then check the heaviest motor separately — a compressor or air-conditioning unit draws several times its running current on every start and will set the ceiling. On this frame the practical limits are about 2,600W of resistive load, 1,600W of motor or pump duty and 800W of compressor load.
Three points to confirm before ordering:
- the direction of conversion and the actual supply voltage at the point of use;
- the socket standard for the destination market and the plug type on the input lead;
- whether the unit will be hardwired through a terminal block or run from a cord and plug.
■ Planning a Hardwired Installation
Because this unit is normally fixed rather than moved, plan the whole circuit at the same time as the transformer: where it will live, how the primary will be isolated, and how the secondary will be distributed. At 110–120V a 2,600W load draws roughly 22A, so size the secondary cable for that current over the full run length and protect it with its own breaker rather than relying on the primary device.
Where several socket outlets are fed from one transformer, a small secondary distribution board gives a cleaner installation than a chain of trailing sockets. Fix the case with 10cm of clear air on every face and bond the enclosure to the installation earth.
■ Pricing, Ordering & Quality Assurance
Step Up & Step Down Transformer Price Range (100VA–10KVA)
Pricing for the DT/ST series depends on capacity, the input/output voltage combination you need, socket type, and whether a voltage selector or MCB protection is fitted. The table below gives indicative FOB levels so you can budget before requesting a firm quotation.
| الطراز | الطاقة الاستيعابية | Input / Output Voltage | تطبيق نموذجي | Indicative FOB Price (per pc)* |
|---|---|---|---|---|
| ST/DT-100 | 100VA | 110V ↔ 220V selectable | Small electronics, chargers, control circuits | US$ 10–15 |
| ST/DT-200 | 200VA | 110V ↔ 220V selectable | Bench instruments, small appliances | US$ 11–16 |
| ST/DT-300 | 300VA | 110V ↔ 220V selectable | Audio equipment, laboratory benches | US$ 12-18 |
| ST/DT-500 | 500 فولت أمبير | 110V ↔ 220V selectable | Refrigeration units, printers, POS systems | US$ 12-20 |
| ST/DT-1000 | 1000 فولت أمبير | 110V ↔ 220V selectable | Power tools, kitchen equipment, single machines | US$ 21-30 |
| ST/DT-1500 | 1500 فولت أمبير | 110V ↔ 220V selectable | Motor-driven machines, imported appliances | US$ 23-35 |
| ST/DT-2000 | 2000 فولت أمبير | 110V ↔ 220V selectable | Compressors, welders, multi-outlet benches | US$ 25-37 |
| ST/DT-3000 | 3000 فولت أمبير | 110V ↔ 220V selectable | Small production lines, test rigs | US$ 33-43 |
| ST/DT-5000 | 5000 فولت أمبير | 110V ↔ 220V selectable | HVAC, industrial machinery | US$ 52-62 |
| ST/DT-7500 | 7500VA | 110V ↔ 220V selectable | Heavy workshop loads | US$ 75-87 |
| ST/DT-10000 | 10000 فولت أمبير | 110V ↔ 220V selectable | CNC equipment, whole-panel supply | US$ 85-112 |
* Indicative FOB Ningbo/Shanghai, standard configuration, based on 50 pcs per size. Not a formal offer — final price depends on your voltage combination, socket standard, enclosure and order quantity.
- The efficiency of the DT/ST series is 80%. For equipment with motors or compressors, the starting current will multiply — always reserve adequate power margin.
- Pure resistive / electronic loads: choose a transformer with capacity ≥ 1.5× the equipment rated power.
- Inductive loads such as motors and compressors: choose a transformer with capacity ≥ 2.5–3× the equipment rated power.
- This table is for reference only. Confirm the final solution according to the rated power and duty cycle shown on your equipment nameplate.
MOQ, Lead Time & Ordering Information
| Minimum Order Quantity (MOQ) | 1 PC for standard DT models. Smaller trial orders can be discussed for first-time buyers. |
|---|---|
| Custom / OEM orders | 50 PCS for custom voltage, custom socket layout, branded front panel or non-standard capacity. |
| Sample | 1-2 pcs sample available for verified buyers. Sample lead time 3-5 working days. |
| المهلة الزمنية | 10-20 working days for standard models after order confirmation and deposit; 15-25 working days for OEM or custom configurations. |
| التعبئة | Export carton with foam. 1/2/6 pcs per carton – see the packing table above. |
| Payment terms | 100% TT IN ADVANCE FOR RETAIL/SAMPLE; 30% TT IN ADVANCE AS DEPOSIT, THE BALANCE BEFORE SHIPMENT. |
| Shipping | FOB Ningbo. CIF and door-to-door available on request. |
| الضمان | 12 MONTHS FROM DELIVERY DATE |
Certifications & Quality Assurance
DT/ST series step up and step down transformers are produced under our ISO 9001 quality management system, and every unit is 100% function-tested before packing.
CE Certified | RoHS Compliant | IEC Tested | ISO 9001 | EMC Tested | 12-Month Warranty
Certificates and routine test reports can be issued as PDF on request, for customs clearance, tender submissions or distributor onboarding.
■ FAQ
Can the transformer be hardwired instead of plugged in?
Yes. A terminal block is provided for fixed wiring alongside the on-board socket. For permanent installations we recommend a lockable isolator upstream so the unit can be taken out of service safely.
Does the output frequency change?
No. A transformer converts voltage only; the output frequency always matches the input. A 50Hz to 60Hz conversion requires a frequency converter instead.
How much clearance does the unit need?
At least 10cm of free air on every face. Do not stack units and do not install the frame inside a sealed panel without forced ventilation.
Is a spare fuse or MCB available locally?
Yes, both are standard items. Should a winding fault occur, return the unit with its serial number and our engineering team will carry out a root-cause assessment before deciding on repair or replacement.
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