Automation and Control Parts
Enicstra carries industrial control components in the USA across discrete manufacturing, process plants, and machine OEM builds. The catalog spans sensors, PLCs and I/O, HMIs, servo and variable-frequency drives, motion control, safety devices, power supplies, connectors, and industrial control system components. Where a current-generation part is no longer practical or available, we source new obsolete and hard-to-find units to help keep older lines running without forced retrofits.
We source through a global supplier network rather than holding OEM franchises, which lets us cover legacy controllers, end-of-life drives, discontinued sensor families, and industrial automation systems components alongside in-production catalog items. Every order ships from St. Louis after bench testing, and parts carry a 12-month functional warranty.
If a specific automation part is not listed, send the OEM part number or a photo of the legacy nameplate and we'll quote sourcing options — most quotes are returned within 1–2 business days.
Subcategories
Audible Alarms and Buzzers
17 products
Cam Positioners
3 products
Control and Signal Devices
1,473 products
Pushbuttons, selector switches, pilot lights, E-stops, and joysticks — 22 mm and 30 mm panel devices.
Control Panels
1 products
Industrial enclosures and control panel components — NEMA-rated cabinets, sub-panels, and accessories.
Controllers
2,103 products
Industrial controllers — PLCs, motion, process, machine, robotics, and dedicated-function control hardware.
Drives and Motor Controls
7,173 products
Drives and motor controls — VFDs, servo drives, soft starters, DC drives, and across-the-line starters.
Human Machine Interface (HMI)
455 products
Industrial HMI touchscreens and operator panels — current models and obsolete legacy displays.
Industrial Automation Accessories
2,496 products
Industrial Lighting
166 products
Industrial lighting — LED machine lights, panel-illumination, signal towers, and explosion-proof fixtures.
Machine Interface
72 products
Machine interface devices — operator pendants, MPG handwheels, jog dials, and handheld programming terminals.
Machine Vision
2,274 products
Machine vision cameras, smart cameras, lenses, lighting, and processors for automated inspection.
Panel Meters
835 products
Digital and analog panel meters — voltage, current, power, frequency, and process variable indicators.
Pick to Light
21 products
Pick-to-light systems — sensors and indicators for guided picking in warehouses and assembly stations.
Pneumatics
23,856 products
Relays
6,896 products
Electromechanical relays — interface, machine-tool, and ice-cube relays for general control applications.
Robotics
1,364 products
Sensors
66,583 products
Industrial sensors covering photoelectric, proximity, pressure, temperature, vision, flow, and laser families.
Signal Conditioners and Isolators
175 products
Signal conditioners and galvanic isolators — convert, isolate, and repeat 4-20 mA, 0-10 V, and digital signals.
Software
2 products
Stack Lights, Beacons and Components
786 products
Stack lights, beacons, audible alarms, and modular tower-light components for machine status signaling.
Static Eliminators
143 products
Industrial static eliminators — ionizing bars, nozzles, and AC/DC power supplies for ESD control on plastics/film.
Valve Position Monitors
2 products
Packaged valve position monitor housings — open/closed indicator domes with switches and fieldbus options.
Automation and Control Parts
Can't Find The Part You Need?
Send us the part number, manufacturer, quantity, and condition — we'll locate it.
Do you stock obsolete or discontinued automation parts?
Yes. Legacy and end-of-life components are a primary focus. Provide the OEM part number and we'll search our supplier network for new inventory, including obsolete and hard-to-find part numbers.
Are these parts new?
Yes. All products offered for sale by Enicstra are new. For obsolete or hard-to-find part numbers, we search our supplier network for new inventory.
What is the typical lead time?
In-stock items ship same or next business day from St. Louis. Sourced items typically quote in 1–2 business days; lead time depends on the supplier and is confirmed before any commitment.
Do you ship internationally?
Yes. International orders over $350 ship free; smaller orders are quoted with carrier options. Duties and import taxes are the buyer's responsibility.
Can you cross-reference an OEM part number to an equivalent?
Often, yes — for sensors, relays, power supplies, and similar commodity-style parts. For PLCs and drives, true cross-references are rare; we will state when only an exact OEM match is appropriate.
What if the part fails within the warranty period?
Contact us with the order number and a short description of the failure mode. Functional failures within 12 months are handled by replacement or refund. Damage from miswiring or over-voltage is not covered.