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

Micro Bimetal Adjustable Temperature Switch 16A In Fluid Filled Sensing System

Automatic reset capillary thermostat for water heater  

Capillary thermostat working principle:

The capillary thermostat operates on the principle of fluid expansion. A temperature change in a fluid filled sensing system consisting of probe (also called bulb), capillary and diaphragm capsule, produces a volume change. The resulting movement of the diaphragm acts through a mechanism to operate the micro switch. i.e a single pole, single throw normally closed circuit breaks (opens) on rise of temperature.

Rated voltage and current: 250V AC, 16A Designed temperature: -35°C to 350°C 

Cycles life : 100,000 cycles

Specification

Normally close, open on temperature rise, automatic reset, Earth Terminal Option
Working voltage and current	16A @ 250 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 tolerance	±3°C, ±4°C, ±5°C,±6°C
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

Description:

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.

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 / 250 Oven
■ 50 / 300 Oven
■ Other ranges upon request

Competitive Advantage:

1. VDE CE CQC Approved.

2. A variety of coating configuration and shell materials are available according to different usages

3. RoHs (2002/95/EC Directive) compliant

4. Customized adjuster rod lengths and requirements are accepted

5. To supply adjustable knob, bezel and mounting screws

6. Adjustable temperature with positive contact separation

7. Mounting bushings/fittings and various sealing bushings are available

8. SPST or SPDT contact configuration

9. Durable stainless steel or copper construction