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[China]
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Address: Building C, Xinmeijia Science and Technology Park, Chashan
Contact name:Andy Wu
Dongguan Tianrui Electronics Co., Ltd |
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KSD314 Big Large Current 25A Automatic Reset Bimetal Disc Thermostat For Washing Machine
KSD314 series snap-action thermostat is a kind of hermetically sealed bimetal thermal protector(3/4" disc). Working under resistive load, it has high loading capacity, and its max current could reach 45A. This series is suitable for high-duty electric appliances as temperature control or overheat protection.
KSD314 thermostat is divided into 6 sub-series according to different structures and applications, they are KSD314-V, KSD314-Q, KSD314-R, KSD314-U, KSD314-T and KSD314-F.
| Rated voltage and current resistive load) | AC 250 V / 45 A | |||||
| Contacts | SPST, auto-reset SPST, manual reset SPST, SOD (one shot, reset temp.<-35℃) DPST, manual reset SPST, drop to ON temperature and power off to reset after cut out | |||||
| Operating temperature | OFF: C (open) | ON: C (close) | ||||
| Material of base | phenolic resin | ceramic | ||||
| Material of sensing cover | aluminum | brass | stainless steel | |||
Material of terminal | nickel plated brass brass | tin plated brass steel | ||||
| Insulation Resistance | More than 10M (with DC 500V megger) | |||||
| Dielectric Strength | 1500V 50Hz AC current, for one minute as bearing test. Resulted no breakdown, no flashover. | |||||
| Max. ambient temperature | 100℃ | 140℃ | 185℃ | 205℃ | ||
| 220℃ | 245℃ | 320℃ | ||||
| Life cycles |  6,000 | 10,000 | 30,000 | 60,000 | 100,000 | |
Approved | CQC | UL | cUL | TUV | VDE | |
| Marking series no. | KSD314 | |||||
| Method of marking | Laser marking or tool impression | |||||
Technical Parameter of Sub-Series
| Sub-series | Action type | Switch structure | Rating | Max. OT | Life cycles |
| KSD314-V | Automatic reset | SPST,Normal close or Normal open | 250V 45A 125V 45A | 140°C | 10,000 |
250V 25A 125V 25A | 180°C | 100,000 | |||
| KSD314-Q | Dual temperature automatic reset | SPST, Normal close | 250V 45A 125V 45A | 140°C | 10,000 |
250V 25A 125V 25A | 180°C | 100,000 | |||
| KSD314-R | Manual reset | SPST,Normal close | 250V 45A 125V 45A | 140°C | 10,000 |
| KSD314-U | One shot type | SPST,Normal close | 250V 45A 125V 45A | 140°C | 100,000 |
| KSD314-T | Electrical self hold (Voltage maintain type) | SPST,Normal close | 250V 45A 125V 45A | 140°C | 10,000 |
250V 25A 125V 25A | 180°C | 10,000 | |||
| KSD314-Q | Automatic reset | SPDT | 250V 25A 125V 25A | 180°C | 100,000 |
Resistance Between Terminals:Below 50 mΩ
| Max temperature of different OT | |||
| OT≤50 | OT:51~100 | OT:101~145 | OT:146~180 |
| 100(L)130(S) | 140(L)170(S) | 185(L)215(S) | 205(L)235(S) |
Installation and Direction for Use
Method of earth: By means of the metal cup of thermostat connected
in the earthing metal part.
The thermostat should work in environment with humidity not higher
than 90%, free of caustic, flammable gas and conducting dust.
When the thermostat is used to sense the temperature of solid
items, its cover should be clung to the heating part of such items.
Meanwhile, heat-conducting silicon grease, or other heat media of
similar nature, should be applied to the cover’s surface.
If the thermostat is used to sense the temperature of liquids or
steam, it is strongly recommended to adopt a version with
stainless-steeled cup. Moreover, cautious measures should be taken
to prevent liquids getting into/onto the thermostat’s insulation
parts.
The top of the cup must not be pressed to sink, so as to avoid
adverse effect on the thermostat’s temperature sensitivity or its
other functions.
Liquids must be kept out of the thermostat’s inner part! The base
must avid any force that could lead to crack; it should be kept
clear and away from the pollution of electric substance to prevent
insulation weakening that leads to short-circuited damages.
The terminals should be bent, or else, the reliability of electric
connection will be influenced.
Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
MP/Whatsapp: +86 13532772961
Wechat: HFeng0805
Skype: andywutechrich
QQ: 969828363
