PSI65C0.133-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI65C0.133-W1 is a medium frequency inverter from the PSI Frequency Inverters series. It is water cooled, has a protection rating of IP20, and operates at a mains voltage of 400 to 480 VAC with frequencies of 50 or 60 Hz. The inverter weighs approximately 25 kilograms and features an integrated 24 VDC power supply unit with a maximum output current of 2 Amps.
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Product Description:
The PSI65C0.133-W1 belongs to the PSI Frequency Inverters series produced by Bosch Rexroth Indramat. Classified as a medium-frequency inverter, it adapts three-phase mains power to supply induction heating generators, hardening equipment, or similar industrial loads that require controllable kilohertz frequencies. An integrated 24 V timer circuit lets external controllers synchronize on and off cycles without separate auxiliary hardware, while the built-in power supply energizes sensors or relays located near the inverter cabinet.
The inverter uses water cooling to remove internal switching losses before they reach the enclosure surfaces, limiting the rise in electrical-room air temperature. Protection is rated at IP20, permitting installation in clean panels where protection against contact with live parts is sufficient. The input section accepts 400–480 VAC three-phase power and operates at either 50 or 60 Hz, allowing the same model to function with common industrial power systems. An auxiliary output of 24 VDC helps stabilize the control electronics against line dips. The integrated supply delivers a maximum current of 2 A for control peripherals such as proximity switches, relays, or valve coils. Heat transferred to the coolant circuit is limited to 420 W, allowing the water circuit to operate with moderate flow rates instead of requiring a high-capacity chiller.
Continuous operation is permitted from +10 to +55 °C; operation outside this range requires derating or standby. The chassis has a mass of 25 kg, which supports stable shelf mounting while keeping the unit manageable during installation. Storage and transportation are permitted from -25 to +70 °C, protecting internal capacitors from excessive thermal stress during warehouse and shipping cycles. The unit meets category 3K3 under EN 60721-3-3 for sheltered indoor operation with moderate exposure to dust and humidity. Its panel installation should provide suitable coolant connections, adequate wiring clearance, and protection from contaminants that could enter the IP20 enclosure.
