The Variac TDGC-0.5 is a single-phase variable autotransformer that delivers continuously adjustable AC output from a fixed input voltage. Rated at 0.5 kVA (500 VA), this unit maintains signal integrity with >90% efficiency and zero additional waveform distortion. Manual control via adjustment knob enables precise voltage regulation across 0 V to 130 V AC (or 0 to 250/300 V AC depending on configuration). Maximum output current reaches 5 A with continuous rating of 4 A on select models.
Technical Specifications
• Capacity: 0.5 kVA / 500 VA
• Input Voltage: 110 V / 120 V AC, 60 Hz (220 V AC available as option)
• Output Voltage: 0 V to 130 V AC, or 0 to 250/300 V AC (model-dependent)
• Output Current: 5 A maximum; 4 A continuous (TDGC3-0.5D)
• Frequency: 50 Hz / 60 Hz (output matches input)
• Efficiency: >90%
• Withstand Voltage: 2 kV (1 minute)
• Insulated Resistance: ≥5 MΩ, >10 MΩ
• Fuse Protection: 5 A
• Operating Temperature: −10 °C to +50 °C
• Operating Humidity: 30%–80%
• Dimensions: 14 × 11 × 14.5 cm (varies by model)
• Weight: ~5 kg
– Key Features
• Enclosed iron shell with copper coil construction
• Analog or digital voltmeter for real-time output monitoring
• TDGC3-0.5D models feature dual digital displays (voltage and current)
• Integrated 5 A fuse protection
• Dry-type air cooling with no waveform distortion
• Grey enclosure; lighted power switch on select models
• Over-voltage protection on designated configurations
– Typical Applications
• Laboratory voltage testing and adjustment
• Equipment calibration requiring stable AC supply
• Motor speed control via voltage regulation
• Power supply conditioning and voltage stabilization
– Compatibility & Integration
This variable autotransformer operates with standard AC power systems. It is not compatible with GFI (Ground Fault Interruption) outlets due to its inductive load characteristics.
