WHD-B(16A/25A) Adjustable Temperature Mechanical Capillary Thermostat is specially designed for prec...
*Power Supply: AC 220V
*Control Mode: PWM Heating
*Water Level Detection: Positive (both detector wires connected when full). Unplugging the water level detector disables the device alarm.
*Heating Power: Long-term control of 200-1800W heating elements. Instantaneous support of 2400W for PTC heating elements.
*Water shortage alarm.
*High temperature alarm (alarm and power off when exceeding 80°C).
| Parameter | Specification |
| Model | WHD-ST65-DZ |
| Brand | LEHENG |
| Type | Water Heating Blanket Integrated Thermostat |
| Power Supply | AC 220V |
| Control Mode | PWM Heating |
| Heating Power | 200–1800W (long-term), 2400W instantaneous (PTC elements) |
| Temperature Sensing | NTC Probe |
| High-Temperature Alarm | Buzzer + power off above 80°C |
| Water Level Detection | Positive type (both wires connected when full) |
| Water Shortage Alarm | Buzzer + power off when water is low |
| Connector Terminals | 3 × 3.96mm (pump, heating element, power supply) |
| Control Interface | Rotary Handle |
| Mounting | Same dimensions as conventional mechanical thermostat |
| Place of Origin | Zhejiang, China |
| Warranty | 1 year |
| Customization | OEM / ODM available |
Heating power, connector configuration, and mounting dimensions should be confirmed against the target product housing before ordering.
Water Heating Blanket Integrated Thermostat Advantages
Integrated Multi-Function Control
Temperature control, pump control, water level detection, and alarm functions sit on one board, reducing the number of separate parts needed in a water heating blanket assembly.
NTC-Based Temperature Sensing
The NTC probe reads heating element temperature and feeds it into the PWM control loop for the heating output.
Dual Alarm Protection
The buzzer and automatic power-off trigger on both low water level and temperature above 80°C, addressing two common fault conditions in one circuit.
Drop-In Mounting Compatibility
Mounting dimensions match a conventional mechanical thermostat, simplifying retrofitting into existing product housings.
Water Heating Blanket Integrated Thermostat Applications
The WHD-ST65-DZ is built for water-heating blanket assemblies and similar low-voltage water heating products used in home settings.
Water heating blankets and heated bedding systems
Household water-circulation heating products
Heating assemblies requiring combined pump and temperature control
Equipment where water level monitoring and overheat protection are both required in one control unit
Water Heating Blanket Integrated Thermostat Manufacturer and OEM Supplier
LEHENG is a Water Heating Blanket Integrated Thermostat manufacturer and factory supplying integrated heating control boards for water heating blanket manufacturers, distributors, and wholesale buyers.
Custom and OEM Service
Custom and OEM configurations can be discussed for heating power, connector layout, alarm thresholds, and mounting dimensions according to confirmed product specifications.
Factory Supply
As a direct factory supplier, LEHENG supports sample evaluation, specification confirmation, OEM production, and repeat wholesale orders, backed by a 1-year warranty with return/replacement service and free spare parts.
WHD-ST65-DZ Water Heating Blanket Integrated Thermostat FAQ
What does the water level detection do if the sensor is disconnected?
Unplugging the water level detector disables the water shortage alarm function on this Water Heating Blanket Integrated Thermostat.
What heating loads does the WHD-ST65-DZ support?
It supports long-term control of 200–1800W heating elements, with instantaneous support up to 2400W for PTC heating elements.
Can this board be installed in place of an existing mechanical thermostat?
The mounting dimensions match a conventional mechanical thermostat, so it can be installed as a like-for-like replacement in compatible housings — confirm your specific product dimensions before ordering.
What happens if the water temperature exceeds the set limit?
The buzzer sounds and heating stops automatically when the sensed temperature exceeds 80°C.
Can the Water Heating Blanket Integrated Thermostat be customized for OEM projects?
Yes. Custom and OEM configurations can be discussed for heating power, connector terminals, and alarm settings according to the target product design.
Do you provide wholesale supply?
Yes. Factory supply of the WHD-ST65-DZ Water Heating Blanket Integrated Thermostat is available for wholesale buyers, water heating blanket manufacturers, and OEM projects.



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