Product Description:

The PSI6300.115-L1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat for the PSI Frequency Inverters series. In automated production cells, it supplies adjustable medium-frequency power to induction heaters, hardening equipment, or resonant converters, allowing the control system to vary energy delivery without mechanical tap changers. An embedded 24 V auxiliary supply and internal timing circuitry simplify panel wiring by providing low-voltage power and trigger signals within the same enclosure. This arrangement reduces the number of separate control components required in the cabinet and provides a centralized source for connected control devices.

The unit accepts a three-phase input of 400 to 480 VAC at 50 or 60 Hz, permitting installation on standard factory distribution networks. All electronics are contained in an IP20 housing, which protects against finger contact but does not prevent dust ingress, so the inverter must be installed inside a suitable switchgear cabinet. Heat from the power stage is removed through an air-cooled channel, and the cooling system must accommodate 360 W of heat loss under full load. This value can be used when calculating cabinet airflow and thermal capacity. An integrated power supply feeds the control boards and connected sensors with a regulated output of 24 VDC, eliminating the need for a separate DIN-rail supply for those loads.

The inverter operates at ambient temperatures ranging from +10 to +55 °C and meets climatic class 3K3 under EN 60721-3-3 for use in typical machine-room conditions. During transportation and storage, it withstands ambient temperatures from -25 to +70 °C without performance degradation. The internal timer circuit operates at 24 V, matching common PLC input and output levels and supporting direct integration with standard control systems. The auxiliary supply provides a maximum output current of 2 A, which is suitable for compatible sensors, contactors, or indicator lights. The enclosure weighs 20 kg, allowing it to be positioned and secured in a cabinet with appropriate handling equipment and mounting hardware.