{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E5EC-TQX4D5M-008","brand":"Omron","brandSlug":"omron","productSlug":"E5EC-TQX4D5M-008","canonicalUrl":"https://aoctrl.com/omron/E5EC-TQX4D5M-008","factsUrl":"https://aoctrl.com/api/mcp/products/E5EC-TQX4D5M-008","rawCanonicalId":null},"summary":{"shortDescription":"Omron E5EC-T series, Process / Temperature Controller, universal RTD/TC/analog input, 4 relay + voltage (external SSR) outputs, RS-485 CompoWay/F Modbus, 24VAC/DC, IP66 front panel.","salesMarkdown":"## Panel-mount controller with universal input and heater fault detection The Omron E5EC-TQX4D5M-008 is a 1/4 DIN panel-mount process and temperature controller from the E5EC-T series. It accepts a wide range of sensors — RTD, thermocouple types B, E, J, K, L, N, PLII, R, S, T, U, W, plus 0–20 mA and 0–10 VDC analog signals — making it a single SKU for mixed-sensor lines. The output stage is four relay contacts plus a voltage pulse for driving an external SSR. This split is useful when you need relay outputs for alarm or on/off stages and the SSR drive for a PID-controlled power loop — the SSR output switches faster and avoids relay contact wear on the modulating element. Heater fault detection is built in, not an add-on module. It monitors current draw on the load side and flags a broken heater element or open circuit — a common failure mode in electric furnaces, hot-runner systems, and packaging seal bars. ## RS-485 Modbus and event input for supervisory control RS-485 communications supports both Omron CompoWay/F and standard Modbus protocols. This lets the controller integrate into a PLC-based line control or a SCADA system without a protocol converter — the Modbus mapping is documented in the product manual. An event input is provided for external trigger — typically used to switch between pre-set temperature profiles, hold the PID loop during a recipe change, or reset the heater fault latch from a remote pushbutton. The tri-color LCD display shows three rows of four characters each. The large top row (18 mm) is the process value; the middle and bottom rows can show setpoint, output power, or heater current. Color changes (green, orange, red) per row give at-a-glance status without reading digits. ## IP66 front panel and active lifecycle The front panel is rated IP66, meaning it withstands hose-down and dust ingress when properly gasketed in the panel cutout. This is the standard for food, beverage, and washdown zones — the controller can be mounted directly on the machine face without a secondary enclosure. Supply voltage is 24 VAC/DC, which is common for industrial control panels. The wide tolerance means it works on either an AC control transformer or a DC power supply without rewiring.","metaTitle":"Omron E5EC-TQX4D5M-008 Temperature Controller, 4 Relay + SSR","metaDescription":"Omron E5EC-TQX4D5M-008 process/temperature controller. Universal input, 4 relay + SSR drive outputs, RS-485 Modbus, heater fault detection.","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-T","Weight":"0.463 lb (210.01 g)","Package":"Bulk","Features":"Event Input, Heater Fault Detection","Input Range":"-200°C ~ 2300°C, 0 ~ 20mA, 0 ~ 10VDC","Output Type":"Relay (4), Voltage (External SSR)","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":"24VAC/DC","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-TQX4D5M-008/alternatives.json"},"ai":{"faq":[{"question":"Does E5EC-TQX4D5M-008 include heater fault detection?","answer":"Yes, heater fault detection is a standard feature on this model. It monitors the load current and can trigger an alarm if the heater circuit opens or current drops below a set threshold."},{"question":"What communication protocols does the E5EC-TQX4D5M-008 support?","answer":"The RS-485 port supports both Omron CompoWay/F and standard Modbus protocols. This allows direct connection to a PLC or SCADA system without an external gateway."},{"question":"What is the input range of the E5EC-TQX4D5M-008?","answer":"The controller accepts thermocouple and RTD inputs from -200°C to 2300°C depending on sensor type, plus 0–20 mA and 0–10 VDC analog signals for process inputs."},{"question":"How can I order the E5EC-TQX4D5M-008 or check current pricing?","answer":"The E5EC-TQX4D5M-008 is sourced to order against an RFQ. Current pricing and availability are confirmed at the time of quotation through independent distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E5EC-TQX4D5M-008","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-TQX4D5M-008 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}}