PSI64C0.178-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI64C0.178-W1 is a medium frequency inverter from the PSI Frequency Inverters series. This inverter is water cooled, has a degree of protection rated at IP20, and operates on a mains voltage of 400 to 480 VAC at 50 or 60 Hz. It features an integrated 24 VDC power supply with a maximum output current of 2 A and weighs approximately 25 kg.
Internal Product Review
The PSI64C0.178-W1 is a medium frequency inverter with water-cooled thermal management. An integrated 24 VDC power supply rated at 2 A adds useful control-side support for streamlined system design. Operation on 400 to 480 VAC mains at 50 or 60 Hz makes this inverter a strong choice for demanding industrial applications.
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Product Description:
The PSI64C0.178-W1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat within the PSI Frequency Inverters series. Designed for industrial automation, the unit converts three-phase mains power into a controllable medium-frequency output for induction heating coils, high-frequency spindles, and similar loads that require precise energy delivery. Typical applications include melting, brazing, and hardening stations where controlled power is needed throughout each operating cycle. The integrated 24 V timer interface permits straightforward sequencing with PLCs and allows the inverter to coordinate with other equipment in an automated production system.
The input section accepts a 400 to 480 VAC three-phase supply at 50 or 60 Hz, allowing operation on standard factory power networks in many regions. Heat generated by the switching devices is removed through a water-cooled plate exchanger, making the unit suitable for enclosed cabinets where forced-air cooling is impractical. The inverter produces 420 W of thermal dissipation that must be carried away by the plant coolant circuit during operation. Its electronic enclosure has an IP20 degree of protection, so the unit must be installed inside a control cabinet while remaining protected against finger contact with live components. An internal power supply provides the logic voltage required by the control electronics, eliminating the need for a separate supply module.
For auxiliary circuits, the integrated supply maintains a regulated output of 24 VDC at up to 2 A. This output can provide power to nearby fans, contactors, or sensor rails without requiring an additional low-voltage source. Continuous operation is permitted at ambient temperatures from +10 to +55 °C, supporting installation in warm machinery spaces. Stored or transported units can tolerate temperatures from -25 to +70 °C without performance loss. The inverter has an installation weight of 25 kg, which must be considered when selecting cabinet supports and mounting hardware. Its climatic category of 3K3 permits use in production halls with moderate humidity and noncondensing airborne dust.
