Sterling Services leads the industry in selling and repairing Modules, primarily for PLC systems (programmable controllers). Sterling Services has been repairing and selling Modules since 1991. Sterling stocks I/O Modules as well as include other products like electrical hardware, starters, pressure controls, industrial controls, temperature controls, relays, machine interfaces, circuit boards, selector switches, monitors, circuit breakers, sensors, photoelectrics, contactors, servo drives, and other PLC modules.

Do you need AC drives, DC drives, speed controls, power supplies, process controls, instruments, timers, counters, proximity switches, push buttons, or IO blocks? The repairing and sales of Modules are integral in industrial automation. We sell and repair the major manufactures including: Nematron, Texas Instruments, Square D, Westinghouse, Modicon, Allen Bradley, General Electric, Reliance, Siemens, Cutler-Hammer, Mitsubishi, Omron, CTC, Telemecanique, Honeywell and Uticor.

What kind of PLC module do you require? Chances are, we have it in stock.