Adjustable capillary thermostat. Manual Reset Heat-Breaker for Electric Oven,Fried Pan etc.
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 |
| Type | Operation Temperature (° C ) | Switch form | Max Temp of Sensor (° C ) | Capillary tube (mm) | Fill in | |
| OFF | DIFF | |||||
| WQS-50 | 50± 3 | Manual Reset | SPST | 350 | 100 | Liquid |
| WQS-120 | 120 ±6 | Manual Reset | SPST | 400 | 300 | Liquid |
| WQS-240 | 240 ± 20 | Manual Reset | SPST | 400 | 300 | Liquid |
| WQS-260 | 260 ± 20 | Manual Reset | SPST | 400 | 350 | Liquid |
| WQS-300 | 300 ± 155 | Manual Reset | SPST | 600 | 400 | Liquid |
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 |
