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Siemens SIMOREG 6RA7081-6DV62

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6RA7081-6DV62

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The 6RA7081-6DV62 module from Siemens is a four-quadrant DC drive designed for enhanced performance in dynamic applications. It operates on a nominal 400 V AC three-phase input with a tolerance of ±15% to -20%.

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Technical specifications for 6RA7081-6DV62

ManufacturerSiemens
Product TypeFour-quadrant DC drive module
Product LineSIMOREG
Part Number6RA7081-6DV62
Input Voltage3-phase AC, nominal 400 V ±15%/–20%
Input Current332 A
DC Output Voltage420 V DC
DC Current400 A
US-rated Current286 A
Field Input400 V AC
Field Voltage325 V DC
Field Current25 A
Power168 kW
Size625×268×318 mm
RectifierB6 bridge
ControlDigital MCU
Operation ModeRegenerative, bi-directional torque
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The Siemens 6RA7081-6DV62 module is a robust four-quadrant DC drive tailored for demanding industrial tasks. This device requires a three-phase AC input voltage, nominally set at 400 V, with a flexibility range of ±15% to -20%. The drive's input current capacity is rated at 332 A. On the output side, it delivers a DC voltage of 420 V and can manage a DC current up to 400 A. The unit also features a US-rated current capacity of 286 A.

For field operations, the module accepts a field input of 400 V AC, alongside a field voltage of 325 V DC and a maximum field current of 25 A. This drive has a power rating of 168 kW, making it versatile for various applications. It measures 625 mm by 268 mm by 318 mm and weighs between 30 and 32 kg, facilitating integration into existing systems.

Control is managed by a digital MCU, which enhances responsiveness and adaptability during operation. Furthermore, the drive uses a B6 bridge rectifier to efficiently process input power. The operational mode is regenerative, allowing for the recovery of energy during braking, and provides bi-directional torque, thus ensuring smooth control in both directions.