PSI6200.168-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI6200.168-W1 is a medium frequency inverter from the PSI Frequency Inverters series. This water-cooled inverter operates at a mains voltage of 400 to 480 VAC and supports a maximum primary current of 1200 Amps. It measures 653 mm in height, 288 mm in width, 280 mm in depth, and weighs 56 kilograms.
Internal Product Review
The PSI6200.168-W1 is a Bosch Rexroth Indramat medium frequency inverter with water-cooled thermal management and a 400 to 480 VAC mains voltage. A 220 A mains nominal current paired with 1200 A max primary current supports demanding inverter duty with strong electrical headroom. The 54 kA max secondary current stands out as a key performance advantage for high-output industrial applications.
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Product Description:
Bosch Rexroth Indramat manufactures the PSI6200.168-W1 as part of the PSI Frequency Inverters series. This medium-frequency inverter converts fixed three-phase power into a regulated high-frequency output for induction heaters, weld transformers, and other high-current loads in automated production. The regulated output helps connected thermal equipment receive controlled energy instead of raw line frequency, which supports stable process behavior during repeated operating cycles. By combining power conversion, closed-loop cooling, and low-voltage control circuitry in one unit, it supports compact panel layouts where water-cooled drive technology is required.
The inverter accepts an input of 400 – 480 VAC and draws a mains nominal current of 220 A. For brief surges, the converter can tolerate up to 1200 A on its primary side, helping it ride through abrupt load steps without interrupting the process. Cabinet basic loss is limited to 69 W, while total thermal dissipation can rise to 700 W under maximum switching duty. Heat is removed through an internal plate exchanger with a pressure drop of 0.6 bar across the coolant path when the circuit supplies at least 4 L/min. Because the exchanger is internal, a large share of the heat is transferred to the coolant circuit rather than accumulating in cabinet air. Cabinet loss during extreme modulation is 210 W, and the water-cooled layout helps prevent enclosure hot spots while maintaining the intended component temperature range.
Control functions operate from a dedicated 24 VDC logic rail that draws 1.5 A. The built-in power supply can source 2 A for sensors and a series-standard 24 V timer, and the secondary output path can deliver up to 54 kA, so connections must use the prescribed 95 mm² conductors. This arrangement supports auxiliary control devices without requiring a separate low-voltage source for basic operation. The housing has a width of 288 mm, a depth of 280 mm, and a height of 653 mm. With a mass of 56 kg, the unit requires suitable lifting support during installation. These physical and wiring values allow the inverter to mount alongside other water-cooled drives without overloading the cabinet or interfering with the coolant manifold.
