Delivery Time:10-15 days on order date
Certification:VDE CE CQC

240V 20A 105℃ AC Normally close and Earth Terminal Option Manual Reset Thermostat Switch

Description:

Changsheng WQS-I series bulb & capillary thermostats are factory calibrated to a predetermined temperature range. This design offers a changeover thermal switch and an optional auxiliary switch that is useful for activation of an alarm or cooling fan. The principles of operation allow this design to be surprisingly cost effective and a leading choice for use in many applications where precision sensing is required while remaining on a tight budget. When temperature rises, the internal fluid located within the bulb expands through a capillary tube to an expandable diaphragm that is configured within the remote thermostat body. This diaphragm assembly activates the electrical contacts at the calibrated temperature set point. The WY-I series is available with a front auxiliary switch as optional.

Specifications:

Normally close, open on temperature rise, manual reset, Earth Terminal Option
Working voltage and current	20 Amps @ 240 Vac
Ø Phial  diameter	3/6 mm
Cycles life	100,000 cycles
Open temperature	-35°C to 350°C
Temperature Tolerance	±5°C, ±7°C, ±10°C, ±12°C
Differential Temperature	depending on open temperature
Contact resistance	≤100 m
Capillary length	300~ 3000 mm; other lengths available upon request
Body temperature	T120 / T150
Faston Terminal Connections	6,3x0,8 mm DIN46244
Contact Closure Resistance:	≤50mΩ
Insulation Resistance	≥100MΩ
Speed of response	1.0℃/min
.Min. electric current	200mA

Typical   Model	Operating temperature	Switch	Voltage (V)	Current (A)	Maximum Temperature Sensing part(℃)
OFF(℃)	DIFF(K)
WQS70A-I	70±5	Manual reset		400/250	20	130
WQS95A-I	95±4	Manual reset		400/250	20	150
WQS140A-I	140±4	Manual reset		400/250	20	160

Applications:

■-10 / +16 Refrigeration
■-35 / +35 Fridge
■0 / 40 Ambient
■0 / 85 Boliers / Water heaters 
■0 / 93 Dishwashers
■30 / 110 Bain Marie
■60 / 200 Deep-fryer
■50 / 25