Rectifiers

Rectifiers — New & Used

Rectifiers are essential power-conversion devices that transform alternating current (AC) into direct current (DC), enabling consistent and reliable power for equipment, drives, plating systems, welders, and industrial automation.

At Surplus Select, we offer a rotating inventory of new and used OEM rectifiers, spanning single-phase and three-phase units, high-current modules, and control-panel duty power supplies. Our surplus pricing gives you access to high-quality power conversion hardware at lower cost—ideal for OEMs, manufacturing equipment builders, and maintenance teams upgrading or replacing rectifier systems.

Price Match — We match any authorized distributor on identical in-stock parts, so you can source parts at surplus pricing with distributor-level assurance.

Trade-In Credit — Have quality new surplus items? Trade them in for store credit toward the parts you actually need.

Fast U.S. Shipping — Most orders ship same or next business day from our U.S. warehouse to keep your line running.

Find Your Rectifier Fast (Search-First)

Search your part number (e.g., R480-20-DC, single-phase diode bridge rectifier 100 A, three-phase rectifier module 400 A).
No PN? Try specs like “AC to DC rectifier 480V input”, “rectifier module 24V DC output”, or “welding rectifier 1000A”.
Need a specific duty or mounting? Add details such as heat-sink mounting, DIN rail input, IP20 industrial rectifier to your search.

Applications & Use Cases

Industrial power supplies: Use rectifiers to convert AC mains to DC bus power for drives, PLCs, automation racks and other control systems.
Electroplating & surface finishing: Provide steady DC current for plating, anodizing, and chemical processes where consistent current is critical.
Welding systems: Many large-scale and industrial welders rely on rectifier modules to supply DC welding currents.
DC traction & battery systems: Rectifiers charge battery banks or supply DC buses in transportation, telecom, and backup-power systems.
MRO & panel rebuilds: Replace obsolete or failed rectifier modules with surplus OEM units to reduce cost and downtime while maintaining system uptime.

Why Buy Rectifiers from Surplus Select

New & Used Options: OEM rectifier modules and power-conversion units at surplus pricing for equipment builders and maintenance teams.
High-Duty Coverage: Single-phase and three-phase units, high-current modules, heat-sink mounted, chassis or rack systems available.
Budget-Smart Replacement: Surplus, unused or lightly used rectifiers provide substantial cost savings while fitting into existing systems with minimal change-over.
Fast Shipping: Most orders ship same or next business day so you can keep your equipment and panels running.