CKCTINNER 80A DIN Rail Temperature Control Switch AC 220V NTC
CKCTINNER 80A DIN Rail Temperature Control Switch AC 220V NTC
CKCTINNER QJWK-80 High-Power Temperature Control Switch – AC 220V, 80A, DIN Rail Mount
Take precise control of your electrical systems with the CKCTINNER QJWK-80 Temperature Control Switch. 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 -40°C to 140°C and a built-in NTC thermal sensor, it delivers reliable, high-precision performance for a variety of demanding applications.
Whether 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.
Key Features
- High-Power Rated: Handles up to 80A / 18kW resistive load (heating & lighting) and 8kW inductive load (motors)
- Wide Temperature Range: Adjustable set-point from -40°C to 140°C for versatile applications
- NTC Thermal Sensor: High-precision sensing for accurate temperature-based switching
- Digital Display: Clear, easy-to-read digital readout (<1.9 inches)
- Countdown Timer: Built-in adjustable countdown function for timed operations
- Temperature Calibration: Hold the setting button for 5+ seconds to calibrate within ±10°C
- DIN Rail Installation: Snap-fit guide rail mounting for quick, secure panel box integration
- Low Power Draw: Consumes less than 2W during operation
- Broad Environmental Tolerance: Operates in ambient temperatures from -25°C to 60°C, up to 95% humidity
Technical Specifications
| Model | QJWK-80 |
| Rated Voltage | AC 220V |
| Rated Current | 80A |
| Rated Frequency | 50/60Hz |
| Resistive Load | 18 kW (heating & lighting) |
| Inductive Load | 8 kW (motor type) |
| Power Consumption | <2W |
| Temperature Control Range | -40°C to 140°C |
| Ambient Operating Temp | -25°C to 60°C |
| Ambient Humidity | Up to 95% RH |
| Installation Method | DIN Guide Rail |
| Display | Digital, ≤1.9" |
| Sensor Type | NTC Thermistor |
Typical Applications
- Greenhouse climate management
- Aquaculture water temperature regulation
- Egg incubation systems
- Geothermal floor heating control
- Boiler and industrial heating equipment
- Cold storage and refrigeration monitoring
Installation Guide
- Mount the switch on a DIN guide rail inside a panel box — avoid direct exposure to rain or sunlight.
- Connect this switch between the circuit breaker (or knife switch) on the upper end and the load on the lower end.
- Verify that the load's rated power is within the switch's capacity before wiring.
- Always tighten terminal screws firmly to prevent contact heating under high current.
- Confirm the working voltage matches AC 220V before energising.
- Install 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.
Safety Notes
- Do not touch exposed terminal parts while the unit is energised.
- Operate only in environments free from moisture, corrosive agents, and conductive dust or gases.
- Do not allow oil or water contamination.
- Do not disassemble, repair, or modify the unit yourself.
- Not recommended for use in safety-critical medical or life-support equipment.
- For high-stakes applications (large heaters, cold storage), ensure adequate safety margin and consider dual-circuit safeguards.
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Frequently Asked Questions
Q: What is the maximum load this temperature control switch can handle?
A: 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.
Q: How do I calibrate the temperature reading on the QJWK-80?
A: 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.
Q: Does this temperature control switch work on a DIN rail?
A: 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.
Q: Does the switch include built-in circuit protection?
A: 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.