Description

6SE7028‑6EC85‑0AA0 SIMOVERT MASTERDRIVES Rectifier / Regenerative Unit

Technical Specifications

• Product Model: 6SE7028‑6EC85‑0AA0
• Brand: Siemens
• Warranty: One Year
• Input Voltage: 3‑phase 380‑480 V AC, 50 / 60 Hz
• Operating Temperature: 0 °C ~ +40 °C (derating for higher ambient temperature)
• Storage Temperature: ‑40 °C ~ +85 °C
• Response Time: Regenerative energy feedback response <5 ms
• Protection Class: IP20 cabinet‑mount chassis unit
• Accuracy Class: Heavy‑duty drive power‑conversion grade
• Output Frequency: Not applicable
• Rated Current: 86 A nominal input; 37 kW power rating
• Function: Self‑commutated regenerative rectifier for MASTERDRIVES common DC‑bus multi‑drive groups; bi‑directional power flow between mains and DC‑bus
• Control Hardware: CUR control board, PMU local operator unit, RS485 serial communication port
• Protection: Over‑current, over‑voltage, under‑voltage, over‑temperature, DC‑bus short‑circuit protection
• Diagnostics: PMU seven‑segment fault‑code display, fault‑history memory
• Certifications: CE, UL
• Humidity: 5‑95 % RH, non‑condensing
• Weight: 16.2 kg
• Dimensions: 410 × 300 × 235 mm (H×W×D)
• 

Product Overview

6SE7028‑6EC85‑0AA0 is a medium‑power regenerative rectifier unit within the SIMOVERT MASTERDRIVES vector‑control platform. It provides shared DC‑bus power for multiple inverter axes and recovers braking energy back to the AC supply network, reducing overall plant energy consumption. Widely deployed on printing presses, metallurgical processing lines and heavy‑duty material‑handling machinery. Obsolete drive spare unit available as refurbished and surplus tested hardware for existing multi‑drive‑system repair projects.

Application Notes

‑ Ensure adequate cabinet ventilation and follow derating specifications for high‑ambient‑temperature installation. ‑ Always fully discharge DC‑bus capacitors before opening unit housing. ‑ Match DC‑bus voltage class to all connected inverter modules. ‑ Typical deployment: printing‑machinery & metallurgical‑line multi‑drive rectifier spare‑part stocking.