Electrical characteristics
Power: 3000 VA
Maximum load current: 12 A
Supply voltage: 220 V
Output voltage: 0–300 V
Frequency: 50/60 Hz
Warranty: 2 years
When working at high currents, it is important to consider the dynamics of the input voltage and PF of the connected load. This affects the heating, current load and service life of the device.
Control panel and design
All controls and indicators are located on the front side of the case. This allows:
To be integrated into laboratory, test and production stands
To perform adjustment and control from one position - conveniently and safely
Panel composition:
Digital LCD display:
Input voltage
Output voltage
Current strength
Power factor PF
Adjustment knob with mechanical scale
Power button
Load socket, fuse, Euro plug - also at the front
Housing: metal, with ventilation
The device is supplied fully assembled and ready for connection.
About PF and current: an important note
PF (power factor) affects the current strength in the circuit.
PF = 1: ideal active load
PF < 1: current increases with the same power consumption
Low PF means:
higher winding current
higher thermal load
higher probability of overheating
Suntek variac displays PF and current separately on the display so that the user does not work "blindly".
Example of load calculation
Load: 2200 W, PF = 0.7
→ Apparent power: 2200 / 0.7 ≈ 3143 VA
→ Current: 3143 / 220 ≈ 14.3 A
3000 VA LATR is designed for 12 A → this load exceeds the limit.
It is recommended to use a load of up to 12 A for stable and safe operation.
Operating conditions
Temperature: from –5°C to +40°C
Humidity: up to 80% at 25°C
Atmosphere: non-aggressive, without conductive dust
Pressure: from 86 kPa
Protection class: IP20
Continuous operation time: up to 6 hours
The device should not be left on without supervision
Dimensions and connection
Dimensions: 240 × 290 × 230 mm
Weight: 13.0 kg
Connection: built-in socket + cable with Euro plug
Form factor: desktop or built-in
Application areas
Configuring powerful power supplies
Testing devices, relays, circuit breakers, fuses
Supplying non-standard voltage in scientific research
Control of heaters, transformers, electric motors
Recovery and testing of electrolytic capacitors
Integration into laboratory stands and test modules
Advantages of SUNTEK GRAY 3000 VA
Increased power: 12 A nominal load
Compact housing with front layout
Informative digital display
Reliability during long-term operation
Readiness for load "out of the box"
Direct compatibility with industrial and laboratory installations
Variac Suntek GRAY 3000 VA is a solution for those who work with a serious load, require precision and are used to seeing the parameters, rather than guessing about them.
In addition to high quality, our company offers interesting terms of cooperation. If you wish to develop your business together with us send your contact to us. We will contact you. In addition, on the page cooperation you can get information about the principles of cooperation with our company. Open and mutual understanding are the basis of a successful joint business.
