Available in three standard input ranges of 24 V, 108 V, and 216 V dc, the PWS switch-mode inverters deliver from 500 VA to 3000 VA in a 7-in. high, 19-in. rack-compatible package. Various output ranges are available. Also, the inverters can be run in single- and three-phase configurations. All outputs, which are pure sinusoidal ac, come fully isolated and regulated to 0.5%. Prices start at $1045 each for 500-VA units in lots of 100.