# SCR AC Voltage Regulator 4000W, temperature protection

- Page: https://sigmanortec.ro/en/scr-ac-voltage-regulator-4000w-temperature-protection
- Price: 28.96 RON
- Availability: In stock; 1-2 zile
- Reference: 33247 · EAN: 5940031518714
- Category: Electronic components > Variators
- Specifications: Voltage Adjustment: Yes; Adjustment Type: Variable; Maximum Controlled Power: 4000 W; Input Voltage: 220 V; Input Voltage Type: AC; Output Voltage Type: AC
- Package (shipping data): 0.078 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 04:49 (Europe/Bucharest)

## Description

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).
Connect a consumer before putting the module into operation.
For inductive or capacitive loads, the maximum supported power is reduced by half.
As a good practice, we recommend using modules with half of the specified maximum specifications.
Specifications:
Dimensions mm: 85 x 55 x 38mm, potentiometer hole 6mm.
Maximum power: 4000W (limitation by resistance)
Efficiency: >90%
Operating voltage: AC 220V
Adjustable voltage: AC 0-220V
before adjustment, it must be connected to a consumer.