{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E5EC-RX4A5M-009","brand":"Omron","brandSlug":"omron","productSlug":"E5EC-RX4A5M-009","canonicalUrl":"https://aoctrl.com/omron/E5EC-RX4A5M-009","factsUrl":"https://aoctrl.com/api/mcp/products/E5EC-RX4A5M-009","rawCanonicalId":null},"summary":{"shortDescription":"Omron E5EC series, Process/Temperature Controller (RTD, Type B, E, J, K, L, N, PLII, R, S, T, U, W), 5 Relay outputs, RS-485 (CompoWay/F, Modbus), 100-240VAC, Screw Terminal, IP66 front, Panel Mount.","salesMarkdown":"## What this controller does on a real line The Omron E5EC-RX4A5M-009 is a panel-mount process and temperature controller that reads nearly any wired sensor you'd throw at it — RTD, thirteen thermocouple types (B, E, J, K, L, N, PLII, R, S, T, U, W), plus 0-20mA or 0-10VDC analog signals — and drives up to five relay outputs for staging heat, cooling, alarms, or event triggers. Five relays means you can run a three-step heating sequence plus a high-temp alarm and a heater-current fault output, all from one box, without adding outboard relays for each function. The IP66-rated front panel is sealed against washdown spray — good for food processing lines or any panel face that gets hosed down — and the screw terminals are the kind a panel builder can land a 14 AWG wire on without swearing. ## The input range covers the shop floor The universal input spans -200°C to 2300°C depending on sensor type, so the same controller handles a cryogenic freezer and a kiln firing zone. Process inputs let it read pressure transmitters or flow meters with a 0-20mA or 0-10VDC output. Control is On/Off or full PID with autotune — the PID loop is what you want for tight temperature regulation on a plastic extruder barrel or a reflow oven zone. ## Networked and field-service ready RS-485 with both CompoWay/F and Modbus protocols means it talks to a PLC or SCADA without a protocol converter. The tri-color LCD backlight changes color on alarm or event — a field tech can spot a deviation from across the panel aisle. The event input on the screw terminals lets a remote dry contact force a preset change, like switching from a day setpoint to a night setback, without opening the panel door. ## Panel fit and lifecycle Panel cutout is 92.00mm x 45.00mm — a standard 1/4 DIN footprint that drops into existing holes without rework.","metaTitle":"Omron E5EC-RX4A5M-009 Process/Temp Controller, 5 Relay","metaDescription":"Omron E5EC-RX4A5M-009 temperature/process controller with 5 relay outputs, RS-485 Modbus, IP66 front.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Process / Temperature Controllers"],"specifications":{"Type":"Process, Temperature Controller (RTD, Type B, E, J, K, L, N, PLII, R, S, T, U, W)","Series":"E5EC","Weight":"0.463 lb (210.01 g)","Package":"Box","Features":"Event Input, Heater Fault Detection","Input Range":"-200°C ~ 2300°C, 0 ~ 20mA, 0 ~ 10VDC","Output Type":"Relay (5)","Display Type":"LCD - Tri Color Characters, Backlight","Mounting Type":"Panel Mount","Communications":"RS-485 (CompoWay/F, Modbus)","Control Method":"On/Off, Proportional (PID)","lifecycle_stage":"current","Voltage - Supply":"100 ~ 240VAC","Termination Style":"Screw Terminal","Ingress Protection":"IP66 - Dust Tight, Water Resistant","Operating Temperature":"-10°C ~ 55°C","Panel Cutout Dimensions":"Rectangular - 92.00mm x 45.00mm","Display Characters - Height":"0.710\" (18.00mm), 0.433\" (11.00mm), 0.307\" (7.80mm)","Number of Characters Per Row":"4, 4, 4"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c6d2565f7c49acd020a74c22dc4212b3.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/E5EC-RX4A5M-009/alternatives.json"},"ai":{"faq":[{"question":"Can E5EC-RX4A5M-009 be replaced by E5EC-RX4A5M-008?","answer":"The E5EC-RX4ABM-008 is a close functional sibling with the same five relays, RS-485, input range, and cutout, but it uses spring-clamp terminals instead of screw terminals and does not include the event input. If your BOM calls for screw terminals and an event input, stick with the E5EC-RX4A5M-009."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E5EC-RX4A5M-009","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/E5EC-RX4A5M-009 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}