PPST 12.5kW - 40kW Home » PPST 12.5kW, 15kW, 20kW, 25kW, 30kW, 40kW Induction Heating Equipment PPST 12.5kW, 15kW, 20kW, 25kW, 30kW, 40kW Power Rating Capable of both high and low frequency output, these units range in power rating from 12.5kW to 40kW and feature solid-state module design.