Key specification for this speed controller: model number DTY-4000. Everything below is reproduced from the factory data sheet. Made by Yueqing Engelec Power Technology Co., Ltd. (10 years on the platform, typical reply ≤11h). Send your target quantity and destination for a firm quotation with current lead times.
Key Features of This Speed Controller
- Model Number: DTY-4000
- Rated Power: 4000W(better at 20000-3000W)
- Input Voltage: 220V
- Output Voltage: 0-220V
- Place Of Origin: Zhejiang, China
- Features: with protection
Technical Specifications
| Phase | Single Phase |
|---|---|
| Current Type | AC |
| Usage | SVC |
| Place Of Origin | Zhejiang, China |
| Model Number | DTY-4000 |
| Brand Name | ENGELEC |
| Product | Thyristor electronic regulator |
| Input Voltage | 220V |
| Output Voltage | 0-220V |
| Rated Current | 9A |
| Max. Current | 18A |
| Rated Power | 4000W(better at 20000-3000W) |
| Features | with protection |
| Items | voltage regulator variac |
| Packaging Details | voltage regulator variac in box/carton |
| Port Of Dispatch | Ningbo/Shanghai |
| Selling Units | Single item |
| Single Package Size | 20X20X20 cm |
| Single Gross Weight | 2.0 kg |
Product Details
Thyristor electronic voltage regulator 4000W AC220V input 0-220V output voltage regulator variac
Main Function:
The thyristor electronic voltage regulator is mainly used for resistive loads (Incandescent lamps, etc.), single-phase AC brushless motor, adjustable pressure range from 20V-220V, more suitable for low voltage drive heating wire Factory use: such as cutting styrofoam, pearl cotton, raincoats make it to adjust the voltage, reduce power and so on. With the new bi-directional high-power thyristor, the current is up to 40 amps, which solves the over-current problem caused by the electric resistance of the electric furnace wire when cooling is too small; it can easily adjust the output voltage of the mains at 10V- Continuously adjustable between 220V, zero delay, zero hysteresis. Use case: Heat regulation of electric stove and water heater, dimming of lamps and lanterns, small motor speed adjustment, electric iron thermostat and so on, so as to achieve the effer of temperature adjustment, dimming, speed regulation, and pressure regulation.
Main Spefidication:
| Product name | Thyristor electronic regulator |
| Product number | WBT-4000W |
| Input voltage | AC220V |
| Output voltage | 10-220V adjustable (the output voltage is less than the input voltage) |
| Maximum power | 4000W (at 220V) |
| Voltage regulation range | 0-220V stepless adjustable (with load conditions) step-down can be 0, boost starting 20V or so. |
| Rated current | 9A |
| Maximum current | 18A |
| Product Features | Zero hysteresis, zero delay, with a peak voltage to attract the circuit to effectively protect high-power thyristor against surge, anti-spike, RC absorption of multiple protection |
Main application:
Electric furnace, water heater, the lamps and laterns that move light, small motor, solder iron temperature control and so on (Inductive or capacity load power should be reduced, the voltage regulator is equipped with two-way high-power thyrister, don't add any component can use , very convenient and practical.)


voltage regulator variac


voltage regulator variac




voltage regulator variac


We can custom make the socket and plug in different type. Like US/German/Australia type…
The cable material and length can be also custom made.


Should you have any question, just feel free to me!
voltage regulator variac


Ordering and Pricing
- Minimum order quantity: 5 piece
- Volume pricing:
- 5–99 piece: US $12.9 / piece
- 100+ piece: US $10.5 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this speed controller?
The standard minimum order quantity is 5 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
Can the speed controller be supplied for my local voltage?
The standard configuration is 220V. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Yueqing Engelec Power Technology Co., Ltd., based in China. The company 10 years as a verified Alibaba.com supplier, Trading Company. Browse the full Yueqing Engelec Power Technology Co., Ltd. range on HVACR Nexus.
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