ModelWISE 500
Rated Power 500VA / 500W
Topology Single phase stabilizer with microprocessor controlled
Number of taps6 taps
Crossing techniquezero current crossing
Voltage220 Vac (L-N) -25% +23% 
Frequency50/60 Hz ± 5%
Wave formpure sine wave
Voltage220 Vac (L-N) ±5%
Frequencysynchronize with input
Wave formpure sine wave (siunsoidal)
Total harmonic distortionless than 0.3% THD
Overload capability

100% for continuos lode

125% for 22 min.

150% for 11 min.

175% for 2 min.

200% for 44 sec.

more than 250% for 10 sec.

Ac to Ac (at full load)more than 96%
Overloadautomatic shutdown with manual restart
Over / Under Voltageautomatic shutdown with auto restart 
Frequencu faultaudible and visual alarm
Short cicuitfuse
Surge energy dissipation320 joules(6.5 kA)
Surge clamping Voltage370 Vp
Power dissipation1,000,000 W within 100 microsec.
EMI / RFI dissipation100 kHz - 80 MHz
Attenuationmore than 36 dBA
Front panel LED'spower on, alarm (over  Voltage, under Voltage, frequency fault, overload, shutdown)