Electronic Thermostat/ Heater Thermostat/ Heating Unit Thermostat

The HA203/HA303 digital thermostat is used in heating systems and is a popular unit because of its microprocessor based controlling technology.

The HA203 model is applied in water heating systems and adopts a normal open or closed valve.
The HA303 electronic thermostat is applied in electric heating systems and measures both the room temperature and the temperature of the devices. Set-point range is 20~90℃. When the device temperature reaches a set-point, the thermostat stops heating automatically to protect the heating devices and guarantee that the devices work under proper temperature. This provides a great deal of safety and energy savings.

Features
● Aesthetic appearance
● Control of electric equipment, normally open or closed valve
● Highly reliable single-chip microcomputer is adopted for high anti-interface performance
● Touch switch
● LCD display, with blue backlight optional
● Relay output
● Temperature correction function
● Anti freezing
● Optional dual-temperature dual control function
● Housing material: PC+ABS
● Standard 86-box, with the thickness to be 13mm
● Standard hole spacing: 60mm
● Terminal Wiring
● Safety and reliability tested
● Power supply range: AC85~260V

Specifications
● Temperature Sensor: NTC
● Display: LCD
● Self Power: <1W
● Ambient Temperature:0～45℃
● Humidity: 5～95% RH（Non-condensate)
● Button: Touch-key
● Accuracy: ±1℃
● Set-point Range: 5～35℃
● Power Supply: AC85～260V，50/60Hz
● Housing: PC＋ABS(Fire retardant)
● Dimensions: 86×86×13 mm（W×H×D）
● Hole Pitch: 60 mm（Standard）
● Protection Class: IP 30
● Output: Water Heating: AC220V 2A（Resistive），AC220V 1A（Inductive）
Electric Heating: AC220V 16A（Resistive），AC220V 6A（Inductive)