Surge Suppressors

Surge Suppressors — New & Used

Surge suppressors are devices designed to protect electrical and electronic systems from sudden voltage spikes or transients by diverting excess energy away from sensitive components. In industrial and control systems, they guard PLCs, drives, servers and automation equipment from power-line disturbances.

At Surplus Select, we offer a broad inventory of new and used OEM surge suppressors and protection devices. Whether you’re replacing damaged units or building a panel with surge protection built-in, you’ll find surplus pricing and fast shipping on units rated for control panels, automation racks, machine power feeds and more.

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 Surge Suppressor Fast (Search-First)

Search your part number (e.g., SPD-240-4-ERT, 40 kA surge suppressor, DIN-rail SPD 3-phase).
No PN? Try specs like “single-phase surge suppressor 120V”, “three-phase DIN rail surge protective device”, or “surge protector panel mount 480V”.
Need a specific rating or mounting style? Add details such as 400 V AC, DIN rail, panel mount, data-line protection to your search.

Applications & Use Cases

Control panels & automation racks: Protect PLCs, drives, I/O modules and sensitive electronics from transient voltage spikes during switching or faults.
Industrial power distribution: Manage surge protection on main feeds, sub-panels or service entrance zones to safeguard equipment and prevent downtime.
Data & communication systems: Use surge suppressors to shield network, Ethernet or signal lines from electrical transients and lightning-induced spikes.
Machine integration & retrofits: Add surge suppression when upgrading machinery or integrating new subsystems to prevent premature failure of electronics.
MRO & replacement parts: Replace failed or end-of-life surge protection devices from surplus inventory to extend equipment lifespan and reduce total cost of ownership.

Why Buy Surge Suppressors from Surplus Select

New & Used Options: OEM surge suppressors and surge protective devices (SPDs) for industrial control, data centres and large-scale automation at surplus pricing.
Wide Coverage: Single-phase, three-phase, DIN-rail and panel-mount configurations to fit a variety of applications and power systems.
Reliable Surplus Savings: Many units are unused surplus or lightly used — delivering cost savings without sacrificing reliability or performance.
Fast Shipping: Same or next business day shipping available to keep your systems protected and online.