PSI62C0.357-W1 Bosch Rexroth Indramat
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The PSI62C0.357-W1 is a medium frequency inverter manufactured by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series. It is water cooled, supports a mains voltage of 400 to 480 VAC at 50 or 60 Hz, and has IP20 protection. This inverter includes an integrated power supply unit with a maximum output current of 2 Amps at 24 VDC and weighs approximately 25 kg.
Internal Product Review
The PSI62C0.357-W1 is a medium frequency inverter with water-cooled thermal management. Operation on 400 to 480 VAC mains at 50 or 60 Hz supports dependable integration across standard industrial power systems. An integrated 24 VDC power supply delivering up to 2 A adds useful control-side capacity, making the inverter a strong choice for continuous-duty installations.
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Product Description:
The PSI62C0.357-W1 belongs to the PSI Frequency Inverters series produced by Bosch Rexroth Indramat. It is classified as a medium-frequency inverter intended to modulate the output supplied to induction furnaces, hardening generators, or other frequency-based heating equipment used in automated manufacturing. By converting the plant’s three-phase mains power into a controlled medium-frequency output, the unit allows energy delivery to be adjusted for different material characteristics and operating cycles. This controlled conversion supports repeatable heating performance during industrial thermal processes.
The inverter accepts a line input of 400–480 VAC at either 50 or 60 Hz, allowing installation on standard industrial supply grids without step-up or step-down transformers. An internal auxiliary power section provides 24 VDC at up to 2 A for control electronics, sensors, or external interface modules, eliminating the need for a separate supply block. Heat generated by the switching elements is removed through a water-cooled circuit, so cabinet airflow requirements remain low during sustained high-power cycles. Control integration is handled through the INTERBUS timer interface, which supports synchronized start and stop commands across multiple heating zones. The cooling system directs heat away from the power electronics to help maintain stable operation during extended duty cycles.
The enclosure has an ingress protection rating of IP20, which protects against accidental contact with live components and the entry of solid objects larger than 12.5 mm but does not provide protection against water. The unit can operate at ambient temperatures from +10 to +55 °C and can be stored or transported at temperatures as low as −25 °C. Its operating range corresponds to climatic category 3K3 under EN 60721-3-3. Maximum thermal dissipation to the coolant does not exceed 420 W, allowing the cooling circuit to be sized for the inverter’s heat load. With a mass of 25 kg, the inverter requires a mounting surface and lifting method suitable for its weight. Panel shelves and fastening points should provide adequate support during operation and machine vibration.
