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Description
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240V Manual Reset Thermostat , Range of 70℃ to 140°C
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WQS-I series bulb & capillary thermostats
Manual reset and sensor leakage protection
-35°C to 350°C
20 Amps @ 240 Vac
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Description:
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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.
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Specifications:
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? Normally close, open on temperature rise, manual reset, Earth Terminal Option |
Working voltage and current | 20 Amps @ 240 Vac |
? 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 |
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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 |
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Applications:
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■-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?
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Competitive Advantage:
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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 |
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Jiangsu ChangSheng Electric Appliance Co., Ltd
Motor Thermal Protector
Address: Xinhua Cun, Chunjiang Town, New-north District,
Changzhou, Jiangsu
China, 213000
Tel: 86-519-85920008
Fax: 86-519-85920222
