6RA7087-6FS22

The Siemens SIMOREG 6RA7087-6FS22 is a DC drive converter, primarily functioning within a single-quadrant mode (B6C). It boasts a nominal output voltage of roughly 550 V DC, allowing it to maintain an output current rating of 850 A continuously under standard operational conditions. The device operates effectively on a three-phase AC supply, accommodating input voltages between 400 and 480 V AC, with an estimated input current demand of 705 A.

With a continuous output power capacity of approximately 468 kW, this converter is adept at handling substantial power requirements for various applications. The field excitation supply is set at around 375 V and 30 A, ensuring adequate field current for performance. Its power topology leverages a 6-pulse bridge design (B6), which contributes to the smooth functioning of motor control operations.

The 6RA7087-6FS22 incorporates a control interface compatible with PMU/OP1S panels and RS232/RS485 communications, facilitating flexible and effective system integration. To maintain optimal thermal performance, forced-air cooling is employed, which helps dissipate heat generated during operations.

This unit also supports parallel operation, thus enabling multiple converters to function synchronously for greater power output. The mechanical dimensions are approximately 700 mm in width, 268 mm in height, and 362 mm in depth, with an overall weight of nearly 47 kg, making it manageable yet capable of handling large loads. Power connections utilize heavy lugs accommodating cable sizes of up to around 185 mm², ensuring robust connections suitable for high current applications.