Step Up and Step Down Transformer 110VAC 220VAC Toroidal Transformer AC Voltage Converter STU Series STU-100VA to STU-5000VA

The Step Up and Step Down Transformer 110VAC 220VAC Toroidal Transformer AC Voltage Converter STU Series (STU-100VA to STU-5000VA) is a high-efficiency voltage converter designed to step up or step down AC voltage between 110V and 220V. This series uses a toroidal transformer design, which provides superior efficiency, reduced electromagnetic interference (EMI), and a compact form factor compared to traditional transformers. With power capacities ranging from 100VA to 5KVA, the STU Series is ideal for a wide range of applications, including residential, office, and industrial environments. It ensures stable voltage conversion for sensitive electronics and equipment, making it a reliable solution for regions with different voltage standards.

Power:500VA-5000VA
Input Voltage:110V-120V-220V-240VAC(Other Voltages Customization Available)
Output Voltage:220-240VAC 110-120VAC(Other Voltages Customization Available)
Number of Phases:1
Current of USB:5A
Type:Step Up & Down Transformer/Voltage Converter with USB

Product Details

■ STU-100W~10000W STEPUP&DOWN TRANSFORMER

Sockets optional
Carrying handle
Input voltage selector
ON/OFF switch
Fuse/MCB protection
Warranty: one year from delivery

■ Functions

Thisvoltageconverter can be used in 110volt countries and 220 volt countries.It ill convert from 220-240 volt to 110-120 volt and from 110-120 voltto 220-240 volt.
Precise input voltage selection according to the country where it is being used.
Input voltage selector:110V-120V-220V-240 volt(other voltages customization available)
Output:110/220-120/240 Volt,with USB
Suitable for Water Dispenser,PrinterRiceCooker,Fan,Fax Machine,Air Machine,Computer.

Model	Capacity	Package Size(cm)	Qty/Package
STU-100	100W	41.5×27×38	12PCS
STU-200	200W	41.5×27×38	12PCS
STU-300	300W	48×29×41	12PCS
STU-500	500W	48×29×41	12PCS
STU-750	750W	48×29×41	12PCS
STU-1000	1000W	49.5×33×21	2PCS
STU-1500	1500W	49.5×33×21	2PCS
STU-2000	2000w	49.5×33×21	2PCS
STU-3000	3000w	54.5×33×24.5	2PCS
STU-4000	4000w	54.5×33×24.5	2PCS
STU-5000	5000W	54.5×33×24.5	2PCS
STU-7500	7500W	42.5×33×28	1PCS
STU-10000	10000W	42.5×33×28	1PCS

Specifications

Technical Parameter of Johsun STU Step Up and Down Transformer 110VAC 220VAC Voltage Converter with USB

Power:500VA-5000VA

Input Voltage:110V-120V-220V-240VAC(Other Voltages Customization Available)

Output Voltage:220-240VAC 110-120VAC(Other Voltages Customization Available)

Number of Phases:1

Current of USB:5A

Type:Step Up & Down Transformer/Voltage Converter with USB

Input Connection:Plug

Socket On the Body:Yes

Efficiency:80%

Power Supply Frequency:50/60Hz

Operatin Temperature Rate:0℃~+40℃

Protection:Fuse/MCB protection, Circuit Breaker, Fuse

OEM/ODM:Accept with MOQ

Spare Parts:Discussion

Warranty:12 Months

Questions & Answers

1. What is the power capacity range of the STU Series?

The STU Series offers a power capacity range from 100VA to 5KVA, making it suitable for various applications, from small household devices to larger industrial equipment.

2. What type of voltage conversion does this transformer provide?

The STU Series provides both step-up (110V to 220V) and step-down (220V to 110V) voltage conversion, allowing it to be used in regions with different voltage standards or for operating devices that require specific voltages.

3. What are the typical applications of this transformer?

The STU Series is commonly used in:

Residential settings (e.g., using imported appliances with different voltage requirements)
Office environments (e.g., powering international office equipment)
Industrial applications (e.g., machinery requiring voltage conversion)
It is ideal for any situation where converting between 110VAC and 220VAC is necessary.

4. What are the advantages of the toroidal transformer design?

The toroidal transformer design in the STU Series offers several benefits:

Higher efficiency, reducing energy loss during operation.
Lower electromagnetic interference (EMI), which minimizes noise and interference with sensitive electronics.
Compact size, making it easier to install in space-constrained environments.

5. Does the STU Series include any protection features?

Yes, the STU Series includes important protection features such as:

Overload protection, which prevents damage from excessive current.
Short circuit protection, which ensures safe operation by guarding against electrical faults.
These features ensure reliable and safe performance during voltage conversion.