Descripción
DT-1000VA step up down transformer
- Output socket fitted to the case, matched to your market standard
- Carrying handle for moving between benches
- Rotary input selector covering 110V, 120V, 220V and 240V
- Mechanical ON/OFF switch
- Fuse and MCB protection on the primary
- Warranty: twelve months from delivery
Funciones
- Converts in both directions between 110–120V and 220–240V from the same unit.
- The input tap is set by hand, so the winding in use always matches the supply of the country you are working in.
- Non-standard primary and secondary voltages can be wound to order.
- Output follows the selected direction: 110V/120V or 220V/240V.
- A good match for bench instruments, printers, water dispensers, fans and fax equipment.

| Modelo | Capacidad | Package Size (cm) | Ctd/Paquete |
| ST/DT-100 | 100w | 41.5×27×38 | 12PCS |
| ST/DT-200 | 200W | 41.5×27×38 | 12PCS |
| ST/DT-300 | 300W | 48×29×41 | 12PCS |
| ST/DT-500 | 500W | 48×29×41 | 12PCS |
| ST/DT-750 | 750W | 48×29×41 | 12PCS |
| ST/DT-1000 | 1000W | 49.5×33×21 | 2 PIEZAS |
| ST/DT-1500 | 1500W | 49.5×33×21 | 2 PIEZAS |
| ST/DT-2000 | 2000W | 49.5×33×21 | 2 PIEZAS |
| ST/DT-3000 | 3000W | 54.5×33×24.5 | 2 PIEZAS |
| ST/DT-4000 | 4000W | 54.5×33×24.5 | 2 PIEZAS |
| ST/DT-5000 | 5000W | 54.5×33×24.5 | 2 PIEZAS |
| ST/DT-7500 | 7500W | 42.5×33×28 | 1PCS |
| ST/DT-10000 | 1000oW | 42.5×33×28 | 1PCS |
Especificaciones
Rated power: 500VA – 10,000VA across the range; this page covers the 1000VA frame
Primary: 110–120VAC or 220–240VAC, other voltages wound to order
Secondary: 220–240VAC or 110–120VAC, other voltages wound to order
Phase: single
Configuration: step up & down transformer / voltage converter
Termination: cord and plug, or terminal block
Socket on the case: yes
Conversion efficiency: 80%
Supply frequency: 50/60 Hz
Working ambient: 0°C to +40°C
Protection: fuse and MCB, circuit breaker
Custom build: accepted with MOQ
Spare parts: by discussion
Warranty: twelve months
■ Cómo elegir este transformador
Read the rating plate on the appliance before you look at the transformer. A device sold as “1000W” often draws more than its marketing figure, and anything with a motor or a compressor draws several times its running current for a fraction of a second on every start. Add up the input watts of everything that will be powered at the same time, then apply 1.5 × for heaters and electronics, 2.5–3 × for motors and pumps and up to 5 × for compressors.
Three details decide the exact specification:
- the supply voltage at the wall where the unit will be used, measured rather than assumed;
- the socket and plug standard of the destination market;
- whether the transformer will sit on a bench with a cord or be wired into a terminal block.
■ Where the 1000VA Frame Fits
One kilovolt-ampere is the smallest rating in the range that still drives a full workshop bench. Typical enquiries come from repair shops testing imported equipment, small production cells feeding a single machine, and retailers who want a compact converter that ships two to a carton and needs no installation work. If your calculation lands above 800W of resistive load, move up to the DT-1500VA step up and step down transformer.
Two ratio options are stocked most often: 220–240V down to 110–120V for imported appliances, and 110–120V up to 220–240V for equipment brought from North America into a 220V market. Both are the same unit with the selector moved, so a distributor needs only one SKU per rating.
The 1000VA frame is often specified with a universal socket in markets that use more than one plug pattern, because the appliance set on a bench changes more often than in a fixed installation.
■ Precios, pedidos y control de calidad
Rango de precios de los transformadores elevadores y reductores (100 VA–10 kVA)
Los precios de la serie DT/ST dependen de la capacidad, de la combinación de tensión de entrada y salida que necesites, del tipo de toma y de si lleva incorporado un selector de tensión o protección mediante un interruptor magnetotérmico (MCB). La tabla siguiente ofrece precios FOB orientativos para que puedas calcular tu presupuesto antes de solicitar un presupuesto en firme.
| Modelo | Capacidad | Tensión de entrada/salida | Aplicación típica | Precio FOB orientativo (por unidad)* |
|---|---|---|---|---|
| ST/DT-100 | 100 VA | 110 V ↔ 220 V, seleccionable | Pequeños aparatos electrónicos, cargadores, circuitos de control | US$ 10–15 |
| ST/DT-200 | 200 VA | 110 V ↔ 220 V, seleccionable | Aparatos de mesa, pequeños electrodomésticos | US$ 11–16 |
| ST/DT-300 | 300 VA | 110 V ↔ 220 V, seleccionable | Equipos de audio, mesas de laboratorio | US$ 12-18 |
| ST/DT-500 | 500VA | 110 V ↔ 220 V, seleccionable | Unidades de refrigeración, impresoras, sistemas de punto de venta | US$ 12-20 |
| ST/DT-1000 | 1000VA | 110 V ↔ 220 V, seleccionable | Herramientas eléctricas, equipamiento de cocina, máquinas individuales | US$ 21-30 |
| ST/DT-1500 | 1500VA | 110 V ↔ 220 V, seleccionable | Máquinas con motor, electrodomésticos importados | US$ 23-35 |
| ST/DT-2000 | 2000VA | 110 V ↔ 220 V, seleccionable | Compresores, soldadoras, bancos con múltiples tomas de corriente | US$ 25-37 |
| ST/DT-3000 | 3000VA | 110 V ↔ 220 V, seleccionable | Pequeñas líneas de producción, bancos de pruebas | US$ 33-43 |
| ST/DT-5000 | 5000VA | 110 V ↔ 220 V, seleccionable | Climatización, maquinaria industrial | US$ 52-62 |
| ST/DT-7500 | 7500 VA | 110 V ↔ 220 V, seleccionable | Cargas pesadas en el taller | US$ 75-87 |
| ST/DT-10000 | 10000VA | 110 V ↔ 220 V, seleccionable | Equipos CNC, suministro de paneles completos | US$ 85-112 |
* Precio orientativo FOB Ningbo/Shanghái, configuración estándar, basado en 50 unidades por tamaño. No se trata de una oferta formal: el precio definitivo dependerá de la combinación de tensión, el estándar de enchufe, la carcasa y la cantidad del pedido.
- El rendimiento de la serie DT/ST es de 80%. En el caso de equipos con motores o compresores, la corriente de arranque se multiplicará; por lo tanto, hay que prever siempre un margen de potencia adecuado.
- Cargas puramente resistivas o electrónicas: elija un transformador con una capacidad ≥ 1,5 veces la potencia nominal del equipo.
- Cargas inductivas, como motores y compresores: elija un transformador con una capacidad ≥ 2,5–3 veces la potencia nominal del equipo.
- Esta tabla es meramente orientativa. Confirma la solución definitiva según la potencia nominal y el ciclo de trabajo que figuran en la placa de características de tu equipo.
Cantidad mínima de pedido, plazo de entrega e información sobre pedidos
| Cantidad mínima de pedido (MOQ) | 1 unidad para los modelos DT estándar. Se pueden negociar pedidos de prueba más reducidos para quienes compran por primera vez. |
|---|---|
| Pedidos personalizados / OEM | 50 unidades para voltaje personalizado, disposición personalizada de las tomas, panel frontal con marca o capacidad no estándar. |
| Ejemplo | Hay 1-2 unidades de muestra disponibles para compradores verificados. Plazo de entrega de la muestra: 3-5 días laborables. |
| Plazo de entrega | Entre 10 y 20 días laborables para los modelos estándar tras la confirmación del pedido y el pago del anticipo; entre 15 y 25 días laborables para configuraciones OEM o personalizadas. |
| Embalaje | Caja de cartón para exportación con espuma. 1, 2 o 6 unidades por caja; consulta la tabla de embalaje anterior. |
| Condiciones de pago | 100%: pago por adelantado mediante transferencia bancaria para venta al por menor/muestras; 30%: pago por adelantado mediante transferencia bancaria en concepto de depósito; el importe restante, antes del envío. |
| Envíos | FOB Ningbo. CIF y entrega puerta a puerta disponibles previa solicitud. |
| Garantía | 12 MESES A PARTIR DE LA FECHA DE ENTREGA |
Certificaciones y garantía de calidad
Los transformadores elevadores y reductores de la serie DT/ST se fabrican conforme a nuestro sistema de gestión de calidad ISO 9001, y cada unidad se somete a una prueba de funcionamiento 100% antes de su embalaje.
Certificado CE | Conforme a la directiva RoHS | Probado según la norma IEC | ISO 9001 | Probado según la normativa EMC | 12 meses de garantía
Los certificados y los informes de pruebas rutinarias pueden emitirse en formato PDF previa solicitud, para el despacho de aduanas, la presentación de ofertas o la incorporación de distribuidores.
■ Preguntas frecuentes
Is the DT-1000VA transformer the same as a 1000W travel converter?
No, and the difference matters when you size the load. The DT-1000VA transformer is a double-wound isolating unit rated in volt-amperes, whereas a “1000W” travel converter is usually a lightweight electronic device rated in watts at a much lower duty cycle. At 80% efficiency this frame carries about 800W continuously, and it holds that output on motor loads where a compact converter would sag.
Can I order a 220V to 110V converter 1000W as an ODM build?
Yes. Custom voltage combinations, alternative socket layouts, branded front panels and non-standard cable lengths are all produced to order, with a minimum of fifty pieces per specification. A 220V to 110V converter 1000W built to your own part number and packaging is a normal ODM request for us; lead time is 15–25 working days.
How to wire a step up transformer of this size?
Set the rotary selector to the voltage you actually measure at the wall, connect the input lead or terminate the primary into the terminal block, then energise with nothing connected and check the output socket with a meter. Add loads one at a time, heaviest first. If you are unsure how to wire a step up transformer into a fixed installation, bring the primary in through a lockable isolator so the unit can be taken out of service safely.
What will the 1000VA frame realistically run?
About 800W of resistive or electronic load, or 300–400W once the starting current of a motor is allowed for. Bench instruments, printers, kiosk terminals, small pumps and single power tools are all comfortable. Above roughly 800W of continuous load, move up to the 1500VA frame instead of running this one at its limit.
How is it packed for a first trial order?
Two units per carton at 49.5 × 33 × 21cm with foam inserts, and one or two pieces can be supplied as samples with a three to five working day lead time. A palletised 20ft container takes approximately 480 units at this carton size, and the 750VA and 1500VA frames share the same carton if you want to mix sizes.
Typical applications for the DT-1000VA
Where buyers actually put this frame — matched to the markets and duty cycles we ship into.
- Power toolsDrills, grinders and saws imported at 110V, sized with inrush headroom.
- Kitchen equipmentMixers, grills and coffee machines under 1,000W.
- Office and POS hardwarePrinters, credit-card terminals and displays.
- Small pumpsTransfer and circulation pumps where the panel voltage differs.
- Lab and clinic devicesAnalysers and sterilisers with a stable, quiet supply.
- Household appliancesThe most-shipped size for relocation and appliance importers.
Full specification — DT-1000VA step up & step down transformer
Every rating below is what we build to at the factory. Confirm your voltage combination and country standard when you enquire.
| Modelo | DT-1000VA |
|---|---|
| Capacidad nominal | 1,000VA |
| Number of phases | Single phase |
| Tensión de entrada | 110-120V / 220-240V via rotary tap switch |
| Tensión de salida | 220-240V / 110-120V — the opposite of the selected input |
| Frecuencia | 50 / 60 Hz |
| Eficacia | 80% typical at rated load |
| Protección | Input fuse + MCB, ON/OFF switch with indicator lamp |
| Refrigeración | Natural air convection |
| Temperatura de funcionamiento | 0°C to +40°C |
| Recinto | Ventilated metal case with carrying handle; socket optional |
| Conformidad | CE, RoHS; produced under ISO 9001 quality system |
| Garantía | 12 months from delivery date |
Motors and compressors: multiply running watts by 3 for the starting surge before choosing capacity.
Download & documentation
Send these to your engineering or procurement team before you shortlist a supplier.
- Download the DT-1000VA datasheet (PDF)1,000VA single unit · ratings, protection, applications and ordering data
- Packing & carton quantitiesModel-by-model carton size and pcs per carton for freight costing
- Request the routine test reportPer-unit test sheet, CE / RoHS declaration and ISO 9001 reference, sent as PDF
Get a firm quotation in one working day
Tell us four things and we can quote without a second round of questions:
- Input voltage and output voltage (and the country standard)
- Required capacity in VA or the load list in watts
- Quantity for the first order and the annual volume
- Whether you need OEM branding, a custom socket or a non-standard voltage
Engineering reply, not a sales auto-responder. Samples of 1-2 pcs available for verified buyers.
Talk to the factory directly
- WhatsApp+86 156 5876 3197
- Correo electrónicosales@johsuntech.com
- Phone+86-15658763197
- Tiempo de respuestaWithin 24 hours, Mon-Sat
Related pages
FAQ
Will a 1,000VA unit run a 900W appliance?
That depends on the load type, not the watts alone. A 900W heater is fine; a 900W motor or compressor with a 3x starting surge needs a 3,000VA model. Always check whether the appliance has a motor, a compressor or a transformer-based supply inside it.
Is the output isolated from the mains?
No. The DT/ST series is an autotransformer, so input and output share a winding and the output is not galvanically isolated. Where isolation is required - medical equipment, wet areas, or where a fault could put line voltage on the load - specify an isolation transformer instead.
What is the difference between the DT and ST prefix?
Both are the same electrical design in the same frame; the prefix identifies the product family and market listing. Order by the model number on the nameplate of the unit you are replacing, and confirm the voltage combination before shipping.
Solicitar presupuesto
Indíquenos sus especificaciones, la cantidad o el ámbito de aplicación, y le responderemos con un presupuesto a medida.