AC Voltage Variable Transformer This singlephase digital display regulator provides stable, adjustable AC output for industrial and laboratory applications. Built with a pure copper coil and a robust design, it delivers reliable voltage control, clear readout, and builtin safety features for routine equipment testing and process control. Key benefits Stable adjustable output: Continuous output voltage control from 0 to 300V (can be customised) for precise voltage setting and smooth operation of connected devices. Durable construction: Builtin pure copper coil improves efficiency and reduces waveform distortion, extending service life under normal use. Clear monitoring and control: Digital display and precise mechanical adjustment make it easy to set and read output voltage and monitor performance. Compact and portable: Designed for bench use or mounting where space is limited; weighs from 3.7KG to 9.7KG depending on model. Safety and convenience: Supplied with replacement fuses and a user manual; temperature rated for operation up to <=60 Celsius. Models and technical specifications Model TDGC2500VA Type: Singlephase digital display regulator Input voltage: 220V Frequency: 50/60Hz Adjustable voltage: 0 to 300V (can be customised) Upper limit current: 2A Maximum operating temperature: <=60 Celsius Weight: 3.7KG Model TDGC21000VA Type: Singlephase digital display regulator Input voltage: 220V Frequency: 50/60Hz Adjustable voltage: 0 to 300V (can be customised) Upper limit current: 4A Maximum operating temperature: <=60 Celsius Weight: 5.95KG Model TDGC22000VA Type: Singlephase digital display regulator Input voltage: 220V Frequency: 50/60Hz Adjustable voltage: 0 to 300V Upper limit current: 4A Maximum operating temperature: <=60 Celsius Weight: 7.8KG Model TDGC23000VA Type: Singlephase digital display regulator Input voltage: 220V Frequency: 50/60Hz Adjustable voltage: 0 to 300V (can be customised) Upper limit current: 8A Maximum operating temperature: <=60 Celsius Weight: 9.7KG Package contents 1 x AC Power Transformer 4 x Fuse 1 x User Manual Common applications and use scenarios Motor speed control: Smoothly adjust supply voltage to small singlephase motors for testing or process tuning. Laboratory and bench testing: Provide variable AC input for power supply evaluation, component testing, and controlled experiments. Industrial equipment maintenance: Test and calibrate label printing machines, telecom and satellite equipment, and railroad switching systems with a stable adjustable AC source. Operation and care notes Connect to a singlephase 220V supply and set the desired output using the rotary control and digital display. Monitor the digital readout during adjustment to achieve accurate voltage settings. Keep ambient temperature below the specified maximum operating temperature of <=60 Celsius for reliable performance. fuses with the supplied spares as needed and follow the user manual for correct installation and maintenance. This AC voltage variable transformer is suited for technical environments that require precise, repeatable AC voltage control and dependable performance.