The PSB 20000 Triple is a compact, three-channel bidirectional programmable DC power supply. Each unit contains three independent, fully isolated, bidirectional autoranging DC stages, so different components such as motors, inverters and on-board chargers can be tested in parallel in one setup while saving more than 50% of rack space compared with single-output devices. The 3U version delivers 15 kW per unit (5 kW per channel) and the 4U version 30 kW per unit (up to 10 kW per channel), with 0–60 V up to 0–920 V and up to 340 A per channel. In sink mode, energy is returned to the grid with efficiency above 96%. Voltage and current in the model list are per channel; power is the total device power.