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Used control unit in China

  • Trusted Seller
    DSQC 314 CS-0037 | ABB

    DSQC 314 CS-0037 | ABB Rectifier Unit

    • Manufacturer: ABB
    • Model: DSQC

    ABB DSQC 314 CS-0037 Rectifier Unit ABB DSQC 314 CS-0037 Rectifier Unit ABB Type Designation:DSQC 314B

    Fujian, China
  • Trusted Seller
    DSQC249A 3HAA3563-AHA/2 | ABB Rectifier

    DSQC249A 3HAA3563-AHA/2 | ABB Rectifier Unit

    • Manufacturer: ABB
    • Model: 3HAA

    ABB DSQC249A 3HAA3563-AHA/2 Rectifier Unit ABB DSQC249A 3HAA3563-AHA/2 Rectifier Unit Catalog Description:Rectifier DSQC249A

    Fujian, China
  • Trusted Seller
    MC22-T | DRP-6T FRIEM 50kA

    MC22-T | DRP-6T FRIEM 50kA Rectifier Unit

    • Manufacturer: FRIEM

    FRIEM MC22-T DRP-6T 50kA Rectifier Unit FRIEM MC22-T 50kA Rectifier Unit FRIEM MC22-T 50kA Rectifier Unit Exceptionally simple and intuitive five button user interface forparameters reading and setting

    Fujian, China
  • Trusted Seller
    FRIEM DRP-6T MC22-T 50kA Rectifier

    FRIEM DRP-6T MC22-T 50kA Rectifier Unit

    • Manufacturer: FRIEM

    FRIEM DRP-6T MC22-T 50kA Rectifier Unit FRIEM DRP-6T MC22-T 50kA Rectifier Unit IN STOCK READY TO SHIP FRIEM MC22-T 50kA Rectifier Unit Exceptionally simple and intuitive five button user interface forparameters ...

    Fujian, China
  • Trusted Seller
    DSQC249B 3HAA3563-AHA/2 | ABB Rectifier

    DSQC249B 3HAA3563-AHA/2 | ABB Rectifier Unit

    • Manufacturer: ABB
    • Model: 3HAA

    ABB DSQC249B 3HAA3563-AHA/2 Rectifier Unit ABB DSQC249B 3HAA3563-AHA/2 Rectifier Unit Catalog Description:Rectifier DSQC249A

    Fujian, China
  • Trusted Seller
    DSQC345C 3HAB8101-3 | ABB Servo

    DSQC345C 3HAB8101-3 | ABB Servo Rectifier Unit

    • Manufacturer: ABB
    • Model: 3HAB

    ABB DSQC345C 3HAB8101-3 Servo Rectifier Unit ABB DSQC345C 3HAB8101-3 Servo Rectifier Unit Catalog Description:RECTIFIER DC2

    Fujian, China
  • Trusted Seller
    DSQC 249A 6369901-237 | ABB

    DSQC 249A 6369901-237 | ABB Rectifier

    • Manufacturer: ABB
    • Model: DSQC

    ABB DSQC 249A 6369901-237 Rectifier ABB DSQC 249A 6369901-237 Rectifier The ABB GME DSQC Series Rectifiers consist of a three-phase, six pulse diode bridge, a reservoir capacitor, a shunt regulator, and control e...

    Fujian, China
  • Trusted Seller
    DSQC 249B 3HAA3563-4HA/2 | ABB

    DSQC 249B 3HAA3563-4HA/2 | ABB Rectifier

    • Manufacturer: ABB
    • Model: 3HAA

    ABB DSQC 249B 3HAA3563-4HA/2 Rectifier ABB DSQC 249B 3HAA3563-4HA/2 Rectifier The ABB GME DSQC Series Rectifiers consist of a three-phase, six pulse diode bridge, a reservoir capacitor, a shunt regulator, and con...

    Fujian, China
  • Trusted Seller
    DSQC 249A 3HAA3563-AGA/2 | ABB

    DSQC 249A 3HAA3563-AGA/2 | ABB Rectifier Board

    • Manufacturer: ABB
    • Model: 3HAA

    ABB DSQC 249A 3HAA3563-AGA/2 Rectifier Board ABB DSQC 249A 3HAA3563-AGA/2 Rectifier Board Servo Rectifier Power Board Servo Rectifier Power Board Features: Phase Error Indication Fault Detection Alarm Bridge Temp...

    Fujian, China
  • Trusted Seller
    DSQC 249B 6369901-217 | ABB

    DSQC 249B 6369901-217 | ABB Rectifier

    • Manufacturer: ABB
    • Model: DSQC

    ABB DSQC 249B 6369901-217 Rectifier ABB DSQC 249B 6369901-217 Rectifier S3, S4, TRALLFA, DSQC249B, Rectifier Unit, 3HAA3563-AHA/1

    Fujian, China

Overview

Rectifiers convert alternating current (AC) to direct current (DC) using diodes, SCRs or bridge assemblies. They come as discrete modules, rack-mounted units, or integrated power supplies for industrial applications. Rectifiers are used in welding, electroplating, battery charging, and DC motors, and vary by voltage, current rating, cooling method, and control features. Buyers check specifications, cooling, and protection features to match load and environment.

FAQ

What should I consider when buying a rectifier?

Verify output voltage and current ratings, duty cycle, form factor, cooling method, control features and protection (overvoltage/overcurrent). Ask for test reports, maintenance history and spare parts availability.

How do I ensure safe shipping of a rectifier?

Secure and palletize the unit, protect terminals and cooling openings, use vibration and moisture protection, label heavy loads and choose a carrier experienced with electrical equipment and local regulations.

What regular maintenance does a rectifier need?

Keep cooling paths clean, inspect and service fans/heatsinks, check connections and fuses, measure output voltage/ripple periodically, and replace worn diodes/SCRs or aging capacitors as needed.