{"product_id":"ckctinner-80a-din-rail-temperature-control-switch-ac-220v-ntc-sensor","title":"CKCTINNER 80A DIN Rail Temperature Control Switch AC 220V NTC","description":"\n\u003ch2\u003eCKCTINNER QJWK-80 High-Power Temperature Control Switch – AC 220V, 80A, DIN Rail Mount\u003c\/h2\u003e\n\u003cp\u003eTake precise control of your electrical systems with the \u003cstrong\u003eCKCTINNER QJWK-80 Temperature Control Switch\u003c\/strong\u003e. Designed for AC 220V\/50–60Hz circuits, this high-power DIN rail thermostat automatically opens or closes your circuit based on a user-defined temperature threshold. With a wide sensing range of \u003cstrong\u003e-40°C to 140°C\u003c\/strong\u003e and a built-in NTC thermal sensor, it delivers reliable, high-precision performance for a variety of demanding applications.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're managing a greenhouse, aquaculture setup, incubation system, geothermal heating array, or boiler equipment, the QJWK-80 offers the accuracy and load capacity professionals need — all in a compact DIN rail form factor. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Power Rated:\u003c\/strong\u003e Handles up to 80A \/ 18kW resistive load (heating \u0026amp; lighting) and 8kW inductive load (motors)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Temperature Range:\u003c\/strong\u003e Adjustable set-point from -40°C to 140°C for versatile applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNTC Thermal Sensor:\u003c\/strong\u003e High-precision sensing for accurate temperature-based switching\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDigital Display:\u003c\/strong\u003e Clear, easy-to-read digital readout (\u0026lt;1.9 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountdown Timer:\u003c\/strong\u003e Built-in adjustable countdown function for timed operations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Calibration:\u003c\/strong\u003e Hold the setting button for 5+ seconds to calibrate within ±10°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDIN Rail Installation:\u003c\/strong\u003e Snap-fit guide rail mounting for quick, secure panel box integration\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Draw:\u003c\/strong\u003e Consumes less than 2W during operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Environmental Tolerance:\u003c\/strong\u003e Operates in ambient temperatures from -25°C to 60°C, up to 95% humidity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eQJWK-80\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 220V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistive Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 kW (heating \u0026amp; lighting)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInductive Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8 kW (motor type)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;2W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Control Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to 140°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Operating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-25°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 95% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDIN Guide Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital, ≤1.9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNTC Thermistor\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGreenhouse climate management\u003c\/li\u003e\n  \u003cli\u003eAquaculture water temperature regulation\u003c\/li\u003e\n  \u003cli\u003eEgg incubation systems\u003c\/li\u003e\n  \u003cli\u003eGeothermal floor heating control\u003c\/li\u003e\n  \u003cli\u003eBoiler and industrial heating equipment\u003c\/li\u003e\n  \u003cli\u003eCold storage and refrigeration monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eMount the switch on a DIN guide rail inside a panel box — avoid direct exposure to rain or sunlight.\u003c\/li\u003e\n  \u003cli\u003eConnect this switch between the circuit breaker (or knife switch) on the upper end and the load on the lower end.\u003c\/li\u003e\n  \u003cli\u003eVerify that the load's rated power is within the switch's capacity before wiring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlways tighten terminal screws firmly\u003c\/strong\u003e to prevent contact heating under high current.\u003c\/li\u003e\n  \u003cli\u003eConfirm the working voltage matches AC 220V before energising.\u003c\/li\u003e\n  \u003cli\u003eInstall an appropriate circuit breaker or leakage protection device upstream of this switch — the QJWK-80 is a control device and does not include built-in protection.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSafety Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDo not touch exposed terminal parts while the unit is energised.\u003c\/li\u003e\n  \u003cli\u003eOperate only in environments free from moisture, corrosive agents, and conductive dust or gases.\u003c\/li\u003e\n  \u003cli\u003eDo not allow oil or water contamination.\u003c\/li\u003e\n  \u003cli\u003eDo not disassemble, repair, or modify the unit yourself.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNot recommended\u003c\/strong\u003e for use in safety-critical medical or life-support equipment.\u003c\/li\u003e\n  \u003cli\u003eFor high-stakes applications (large heaters, cold storage), ensure adequate safety margin and consider dual-circuit safeguards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the maximum load this temperature control switch can handle?\u003c\/h4\u003e\n\u003cp\u003eA: The CKCTINNER QJWK-80 is rated at 80A with a resistive load capacity of 18 kW (suitable for heating and lighting) and an inductive load capacity of 8 kW (for motor-type equipment), all at AC 220V.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I calibrate the temperature reading on the QJWK-80?\u003c\/h4\u003e\n\u003cp\u003eA: After powering on, press and hold the setting button for more than 5 seconds to enter temperature calibration mode. You can adjust the calibration by up to ±10°C to correct any sensor offset.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this temperature control switch work on a DIN rail?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The QJWK-80 is designed for standard DIN guide rail installation, making it easy to mount inside electrical panel boxes alongside circuit breakers and other DIN rail components.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the switch include built-in circuit protection?\u003c\/h4\u003e\n\u003cp\u003eA: No. The QJWK-80 is a control device only. You must install a circuit breaker or residual-current (leakage) protection switch upstream of this unit to ensure circuit protection.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the maximum load this temperature control switch can handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The CKCTINNER QJWK-80 is rated at 80A with a resistive load capacity of 18 kW (suitable for heating and lighting) and an inductive load capacity of 8 kW (for motor-type equipment), all at AC 220V.\"}}, {\"@type\": \"Question\", \"name\": \"How do I calibrate the temperature reading on the QJWK-80?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"After powering on, press and hold the setting button for more than 5 seconds to enter temperature calibration mode. 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