PSI63C0.733-L2 Bosch Rexroth Indramat
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MPN: R911174089
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The PSI63C0.733-L2 is a medium frequency inverter weighing approximately 21 kilograms. Manufactured by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series, it features an air cooling method and IP20 protection. The inverter operates with an input voltage range of 480 to 690 VAC and provides an integrated power supply output of up to 2 Amps at 24 VDC.
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Product Description:
The PSI63C0.733-L2 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. This medium-frequency inverter reshapes incoming high-voltage, three-phase power into controlled energy for induction coils, test rigs, and other compatible industrial loads. Its power conversion stage allows machine controls to regulate output timing and frequency for repeatable process cycles. An integrated control supply reduces the number of separate power components required in the cabinet. The unit also includes an Ethernet-based timer interface for communication with higher-level control systems.
The inverter accepts an input voltage from 480 to 690 VAC at a line frequency of 50 or 60 Hz. Forced-air cooling directs heat through finned channels, helping the power electronics remain within their permitted operating range. The enclosure has an IP20 degree of protection and is intended for installation in a suitable indoor electrical cabinet or switchgear room. Its auxiliary supply provides 24 VDC and delivers up to 2 A for compatible sensors, relay coils, or control circuits. Semiconductor switching produces maximum cooling losses of 360 W, which must be included when calculating cabinet airflow and heat removal. The Ethernet timer port synchronizes inverter operation with an upper-level controller, supporting controlled output sequences without a separate external sequencer.
The unit operates at ambient temperatures from +10 to +55 °C and can be stored at temperatures from -25 °C to +70 °C. It meets climatic category 3K3 under EN 60721-3-3, allowing operation with the moderate humidity and airborne dust commonly present in electrical rooms. The inverter has a total mass of 21 kg, so its mounting surface and supporting hardware must be sized accordingly. Its air-cooled design does not require an external liquid-cooling circuit, but adequate clearance must be maintained around the ventilation path. Cabinet intake and exhaust openings should remain unobstructed to prevent heated air from recirculating through the inverter. The internal control power and network timing connection also reduce the amount of auxiliary wiring needed between the inverter and surrounding automation equipment.
