Output Modules

Output Modules — New & Used

Output modules are control components that interface controllers, PLCs or automation systems to external loads — driving motors, solenoids, lights, heaters, actuators or relays based on logic signals. They convert logic-level signals into power or switching outputs to safely control field devices.

At Surplus Select, we carry a selection of new and used OEM output modules, including digital, analog, relay-type, transistor and triac output cards — compatible with many PLCs, automation racks, and control panels. Our surplus pricing helps automation builders, maintenance teams, and OEMs supply control solutions at lower cost and with fast availability.

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 Output Module Fast (Search-First)

Search by model or module type (e.g., digital output module 16-ch, analog 4–20 mA output card, triac output module 240 V AC).
No model? Try specs like “PLC output module 8-channel”, “relay output card 24 V”, or “DIN-rail output module used”.
Need specific features? Add voltage, channel count, output type (relay, transistor, triac, analog), or mount type (DIN-rail, rack, plug-in).

Applications & Use Cases

Factory automation & control panels: Drive motors, solenoids, lights, relays, and actuators via PLC-linked output modules.
OEM machinery & equipment builds: Integrate output modules into control systems for custom machines, conveyors, packaging, or automation lines.
Retrofits & upgrades: Replace obsolete output cards or expand I/O count using surplus OEM modules for cost-effective system updates.
Test stands & instrumentation: Use output cards to trigger relays, control signals, or power external test devices and measurement gear.
Maintenance & spare parts stock: Keep spare output modules on-hand to minimize downtime when field modules fail or systems need quick replacement.

Why Buy Output Modules from Surplus Select

New & Used Options: OEM output modules — digital, analog, relay, transistor and triac types — available at surplus pricing.
Wide Module Variety: Multiple channel counts, voltages, output types and mounting formats supported.
Cost-Efficient Control Solutions: Surplus inventory lets you build or repair control panels and automation systems without overspending.
Fast Shipping: Most orders ship same or next business day to help you maintain uptime.