# Variators

> SCR AC voltage regulators and dimmers for power and speed control, 220VAC, up to 6000W

- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Category page: https://sigmanortec.ro/en/variators
- Category: Electronic components > Variators
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:32 (Europe/Bucharest)

## Products (4)

### Voltage regulator, SCR, 220VAC, 6000W
- Page: https://sigmanortec.ro/en/voltage-regulator-scr-220vac-6000w
- Details: https://sigmanortec.ro/en/llms/p/1572.md
- Price: 60.60 RON
- Availability: In stock; 1-2 zile
- Reference: 9465 · EAN: 5945198245268
- Specifications: Voltage Adjustment: Yes; Maximum Controlled Power: 6000 W; Input Voltage: 220 V; Input Voltage Type: AC

Efficiently controls power on resistive loads and adjusts the speed of single-phase motors, 220VAC power supply with fine adjustment 10-220VAC from the potentiometer, maximum power 6000W and up to 3000W in continuous use, efficiency approximately 90%, robust construction with metal casing and SCR electronics for high currents.
SCR voltage variator with a maximum power of up to 6000w, which uses a bidirectional power thyristor that can reach a current of up to 100A. It is usually used to vary the speed of single-phase motors (operation with all motors is not guaranteed) or to resistive loads (resistive, etc...).

### SCR AC Voltage Regulator 4000W
- Page: https://sigmanortec.ro/en/scr-ac-voltage-regulator-4000w
- Details: https://sigmanortec.ro/en/llms/p/585.md
- Price: 26.92 RON
- Availability: In stock; 1-2 zile
- Reference: 33463 · EAN: 5946824865089
- Specifications: Voltage Adjustment: Yes; Maximum Controlled Power: 4000 W; Input Voltage Type: AC; Output Voltage Type: AC

SCR AC Voltage Regulator 4000W, reference 33463, with AC input and output voltage. Allows voltage adjustment between 10 and 220V, connects in series on the 220V circuit, and offers efficiency above 90%. Suited for dimming light intensity or controlling motor speed, working best with resistive loads; with inductive or capacitive loads the maximum power is halved.

### SCR AC Voltage Regulator 4000W, temperature protection
- Page: https://sigmanortec.ro/en/scr-ac-voltage-regulator-4000w-temperature-protection
- Details: https://sigmanortec.ro/en/llms/p/584.md
- Price: 28.96 RON
- Availability: In stock; 1-2 zile
- Reference: 33247 · EAN: 5940031518714
- Specifications: Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Controlled Power: 4000 W; Input Voltage: 220 V; Input Voltage Type: AC; Output Voltage Type: AC

AC regulator with SCR for power control in dimmer applications and motor speed regulation, offers smooth voltage adjustment from 0-220V to 220V AC, supports up to 4000W with continuous use recommendation up to 2000W, has efficiency over 90% and integrated thermal protection, compact format 85x55x38 mm with 6 mm potentiometer.
4000W AC voltage regulator suitable for dimmer type applications (light intensity regulation) but also for motor speed control.
It is recommended for long-term use with loads up to 2000W.
Provided with thermal safety.
Attention: the safety does not guarantee that other components will not burn in case of too high a current (there are reaction times).

### Voltage and speed regulator SCR 4000W, 220VAC
- Page: https://sigmanortec.ro/en/voltage-and-speed-regulator-scr-4000w-220vac
- Details: https://sigmanortec.ro/en/llms/p/581.md
- Price: 35.88 RON
- Availability: In stock; 1-2 zile
- Reference: 33437 · EAN: 5944110280417
- Specifications: Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Controlled Power: 4000 W; Input Voltage: 220 V; Input Voltage Type: AC; Output Voltage Type: AC

SCR voltage regulator for 220V AC supply, with adjustable output between 10V and 220V. Supports up to 4000W on resistive loads (below 2000W at room temperature). Module with double isolation and aluminum housing, anti-spike and surge protection. Dimensions 85 x 65 x 38mm. Used to regulate voltage/speed for universal motors, resistors, heaters or lighting.