PLCs
Drives
Servo Drives
Electronic Repair
Electronic Capabilities
EASA
Lifetime Warranty
Contact Us
Distributor Program
Integration
Field Service
Purchasing
Resources
Parts Hotline
Sterling Services Tour
New Motors

Controllers: Programmable Operator Interface
Sterling Services is an industry leader in Programmable Operator Interface Controllers and has been in the industry since 1991. Our large inventory of Programmable Operator Interface Controllers include products like relays, machine interfaces, circuit boards, selector switches, monitors, circuit breakers, sensors, photoelectrics, contactors, servo drives, PLC modules, AC drives, DC drives, speed controls, power supplies, electrical hardware, starters, pressure controls, industrial controls, temperature controls, process controls, instruments, timers, counters, proximity switches, inverters, transmitters, push buttons, IO blocks. Programmable Operator Interface Controllers are integral in industrial automation. The major manufacturers are Allen Bradley, General Electric, Reliance, Siemens, Mitsubishi, Omron, CTC, Telemecanique, Honeywell, Uticor, Nematron, Texas Instruments, Square D, Westinghouse, Modicon and Cutler-Hammer.

Man-Machine Interfaces (or the more politically-correct Human-Machine Interfaces) are a product with which we are intimately familiar. We can fix your old touchscreens, or replace your old pushbuttons and blinking lights with a programmable operator interface to make your workers be more efficient.

Save 55 - 85%! Sterling Services PLC sales and PLC repairs are Guaranteed For Life! Unless otherwise stated, the products listed are reconditioned. Product photographs are representative, actual product photographs can be emailed upon request. Sterling Services is not an authorized distributor or representative of any manufacturer, brand or product listed, additionally trademarks, brand names and brands appearing on this website are the property of their respective owners. If you are interested in new products, please contact Sterling Services sales staff at 1-800-280-4602. Thank you for your business.