Omron Corporation E5EK-AA2-500 Temperature Controller

The Omron E5EK-AA2-500 Temperature Controller is a digital, panel-mount controller from the Omron E5EK Series designed for precise industrial temperature control and monitoring. It operates on 100 to 240 VAC, accepts thermocouple or RTD inputs with multi-input support, uses PID control, and delivers a relay output with optional alarm outputs depending on model, all shown on a digital display. Commonly installed in ovens, packaging machines, plastic processing equipment, and heat treatment systems, it serves food processing equipment, injection molding machines, HVAC systems, and industrial heaters where stable temperature management improves product quality and efficiency; maintenance teams and system integrators use this part for replacement, retrofit, and improving process temperature accuracy. The part number and compatibility details include MPN E5EK-AA2-500 / E5EKAA2500, with common replacements such as E5EN-R3HT-N and E5CN-R2MT-500, plus optional communication features (model dependent) and an operating temperature range of 0°C to 55°C.