You need to ramp a mains appliance from zero volts up through its full range and watch what happens. A Variac does that with one dial — no relay board, no software, no guesswork. This Jaycar 500VA unit steps AC from 0 to 260VAC at up to 3A in a heavy-duty steel housing. On/off switch, output-voltage meter, mains lead, and a standard 3-pin output are all built in. Slow-blow fuses included so a transient spike doesn't take your supply out mid-test. $289 RRP
| 0 | on/off switch |
| 1 | output-voltage meter |
| 2 | mains-supply lead |
| 3 | standard 3-pin power output |
| 4 | slow-blow fuses |
| brand | Jaycar |
| output_voltage_range | 0–260VAC |
| rating | 500VA / max 3A |
| housing | Heavy-duty steel |
| application | Bench testing, appliance verification, simulated mains fluctuation |
| category | Electronics & Components |
| subcategory | Power & Batteries |
