Siemens 6RA7081-6DS22-0 Part # 6RA7081-6DS22-0 | DC Master
Manufacturer: Siemens
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Part Number: 6RA7081-6DS22
Condition:New with Original Package
Product Type: DC Master Converter
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Siemens SIMOREG DC Master 6RA7081-6DS22-0 4Q DC Converter Drive
The 6RA7081-6DS22-0 (Model: 6RA7081-6DS22-0) is a high-performance power conversion unit belonging to the Siemens SIMOREG DC Master series. Engineered for 4-quadrant (4Q) operation, this drive provides bidirectional motor control, enabling both driving and regenerative braking capabilities for large DC motors. The 6RA7081-6DS22-0 (Part Number: 6RA7081-6DS22-0) is a cornerstone in heavy industrial automation, delivering a rated armature current of 400A and supporting US-specific voltage ratings up to 485V.
Designed for precision and reliability, the 6RA7081-6DS22-0 (Model: 6RA7081-6DS22-0) excels in applications requiring constant torque characteristics and sophisticated speed regulation. It integrates a microprocessor-based control system with high-power thyristor bridges, ensuring seamless performance in demanding sectors like metallurgy, paper production, and large-scale printing. This unit is specifically built to withstand the rigors of continuous-duty industrial environments while providing the deterministic data needed for modern PLC-integrated machinery.
Detailed Technical Specifications
The 6RA7081-6DS22-0 (Model: 6RA7081-6DS22-0) features advanced power electronics designed for stable commutation and high thermal efficiency.
| Feature | Details |
| Manufacturer | Siemens |
| Model Number | 6RA7081-6DS22-0 |
| Product Series | SIMOREG DC Master (6RA70) |
| Operation Mode | 4-Quadrant (4Q) - Regenerative Braking |
| Rated Armature Current | 400 Amps |
| Rated Armature Voltage | 485 V DC |
| Rated Supply Voltage | 460-485 V AC (Three-Phase) |
| Supply Frequency | 50/60 Hz |
| Field Current Rating | 15-25 Amps (depending on configuration) |
| Cooling Method | Forced Air Cooling (Internal Fans) |
| Weight | 2.5 kg (Net) / 3.0 kg (Shipping) |
| Input Protection | Commutation Protector Integrated |
| Interface Options | RS-232, RS-485, PROFIBUS-DP (via optional boards) |
| Operating Temp | 0°C to +40°C |