ST-1500 Bộ chuyển đổi điện áp hạ áp từ 220V xuống 110V

Mô tả

ST-1500VA 220V to 110V step down transformer

• Output socket on the case, plug type matched to the destination market
• Carrying handle fitted
• Input selector for 110V, 120V, 220V and 240V supplies
• Công tắc BẬT/TẮT
• Fuse and MCB protection
• Bảo hành: một năm kể từ ngày giao hàng

Chức năng

• Steps 220–240V down to 110–120V, and will also step up in the opposite direction.
• Input tap chosen by hand so the winding matches the supply where the appliance is used.
• Selector positions: 110V – 120V – 220V – 240V, other voltages by request.
• Output taken from the socket at 110V or 120V, with an independent USB outlet on the case.
• Commonly used with water dispensers, printers, rice cookers, fans, fax machines and computers.

Thông số kỹ thuật

Capacity: 1500VA, from a family covering 500VA to 5000VA

Điện áp đầu vào: 110V – 120V – 220V – 240VAC, other voltages to order

Output voltage: 220–240VAC / 110–120VAC

USB outlet current: 5A

Number of phases: 1

Loại: step up & down transformer / voltage converter with USB

Input connection: plug

Socket on the body: yes

Hiệu quả: 80%

Power supply frequency: 50/60 Hz

Operating temperature: 0°C to +40°C

Protection: fuse and MCB, circuit breaker

OEM / ODM: accepted with MOQ

Spare parts: by discussion

Warranty: 12 months

■ How to Choose This Transformer

Confirm two numbers before anything else: the mains voltage at the wall, and the input wattage on the appliance’s rating plate. The second is almost always higher than the figure used in the marketing — a “1000W” appliance may draw 1,400W or more. With 80 % conversion efficiency a 1500VA frame carries about 1,200W continuously, and if your load sits close to that figure, take the next size up rather than running this one at its limit.

Three decisions shape the order:

• the direction of conversion required and the supply voltage at the point of use;
• the socket standard for your market — US, UK, EU, Australian, South African or universal;
• whether the appliance will be swapped around, in which case a universal socket avoids returns.

■ Set-Up in Guest Rooms and Apartments

The pattern we see most often is one transformer per appliance group, never more than the continuous rating. A coffee machine and a rice cooker can share the unit if they are not run together; a washing machine should have it to itself because of the motor surge. Stand the transformer on a hard, level surface with clear air around the vents — a carpet, a curtain or a closed cabinet will trap heat. The carrying handle makes it easy to move between rooms when the appliance set changes.

The output socket is matched to the market at the time of order — US two-pin and three-pin, UK, EU Schuko, Australian, South African or universal. Where a market uses more than one pattern, a universal socket removes the risk of returns.

Where the appliance set changes with the season, a two-socket version is worth specifying: two 110V devices of 500–600W each can then be connected without a trailing adaptor, provided they are not started at the same moment.

Fuses are standard items available locally, and there is nothing to calibrate or reset after a power interruption. Should a winding fault occur, return the unit with its serial number and our engineering team will carry out a root-cause assessment first.

■ 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.

* 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.

1. 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.
2. Pure resistive / electronic loads: choose a transformer with capacity ≥ 1.5× the equipment rated power.
3. Inductive loads such as motors and compressors: choose a transformer with capacity ≥ 2.5–3× the equipment rated power.
4. 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

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

Is the ST-1500VA the best step up transformer 110V to 220V for a guest room?

For a single appliance under about 1,200W it is a sensible choice, and many of our hospitality customers settle on it as the best step up transformer 110V to 220V in this size bracket because it is quiet, needs no setting beyond the input selector and ships two to a carton. If two appliances of 500–600W each have to be available at once, specify the two-socket version rather than chaining trailing adaptors.

What does the step up transformer price include?

The step up transformer price we quote covers the unit as configured — capacity, voltage combination, socket standard, protection arrangement and cable set — packed in an export carton with foam. It excludes freight, insurance and import duties unless you ask for a CIF or door-to-door figure. Because the quote is built from a specific configuration, the step up transformer price is firm for thirty days rather than indicative.

What are the advantages of a step down transformer over a travel adapter?

A travel adapter changes only the shape of the plug; it does not change voltage. The real advantages of a step down transformer are that it converts the supply itself, isolates the appliance from the mains through a double-wound core, and holds the output steady when a motor or compressor starts — none of which an adapter can do. For any appliance rated for a different mains voltage, the transformer is the correct product and the adapter is not.

Will it run a washing machine?

Only if the motor is under about 250W, because the start-up surge of a washing-machine motor dominates the calculation even though the running load looks modest. A 1.5KVA frame carries roughly 1,200W of continuous resistive load, so resistive appliances such as a coffee machine or rice cooker are comfortable; anything with a heavy motor should be sized at 2.5–3 times its nameplate power.

Which socket and plug should I specify?

Match the socket to the appliances and the plug to the wall outlet where the unit will be used — these are often different standards. The socket is fitted during assembly, so it must be chosen at the time of order; the input lead plug can be changed more easily afterwards if your market changes.

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