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Used Rectifiers in China

  • Trusted Seller
    SPMC1402 | Emerson Input Rectifier

    SPMC1402 | Emerson Input Rectifier

    • Manufacturer: Emerson

    EMERSON SPMC1402 Input Rectifier EMERSON SPMC1402 Input Rectifier Emerson Unidrive SP Input Rectifier 380-480VAC +/-10% 3 Phase Drives from the Unidrive and Commander families can be connected on a common DC bus ...

    Fujian, China
  • Trusted Seller
    DRP-6T | FRIEM Star Rectifiers

    DRP-6T | FRIEM Star Rectifiers

    • Manufacturer: FRIEM

    FRIEM DRP-6T Bridge & Double Star Rectifiers FRIEM DRP-6T Bridge & Double Star Rectifiers The DRP-Line concept is derived from the former line of FRIEM Analog Regulators REGAS, but has been developed on a state o...

    Fujian, China
  • Trusted Seller
    TH230D40NZ-3 | TONHE Force-air cooling

    TH230D40NZ-3 | TONHE Force-air cooling rectifier

    • Manufacturer: TONHE

    TONHE TH230D40NZ-3 Force-air cooling rectifier TONHE TH230D40NZ-3 Force-air cooling rectifier Input voltage: 380VAC±20% AC input: - Input voltage: 380VAC±20% - Input phase: 3-Phase - Power factor: ≥93% - Input fr...

    Fujian, China
  • Trusted Seller
    3HAC14549-3 10A | ABB Rectifier

    3HAC14549-3 10A | ABB Rectifier

    • Manufacturer: ABB
    • Model: 3HAC

    ABB 3HAC14549-3 10A Rectifier ABB 3HAC14549-3 10A ABB ABB 3HAC14549-3 10A Rectifier General Information Product ID:3HAC14549-3 ABB Type Designation:21,5x22x27 Catalog Description:Rectifier, R 3 Product Net Weight...

    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.