FSTB KSD314 big current bimetal thermostat thermo disc for thermal protector
FSTB KSD314 big current bimetal thermostat thermo disc for thermal protector
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.
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 |
SPSTNormal 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) |
L:Long term
S: Less than 15 min
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.
Major series of snap-action thermostats are as follows:
|
Series
|
Diameter of bimetal disc
|
Max. operating Temp.
|
Max. |
Switch structure
|
Service purposes
|
|
rated |
|||||
|
current |
|||||
|
KSD301
|
F12.8mm |
280°C
|
16A
|
SPST
|
Temperature control and overheating protection for low-duty electric heating applications.
|
|
(1/2″) |
|||||
|
KSD301-U
|
F12.8mm |
280°C
|
16A
|
SPST
|
One shot type fuse for low-duty electric heating applications.
|
|
(1/2″) |
|||||
|
KSD302
|
F22.25mm |
125°C
|
25A
|
SPST
|
Temperature control and overheating protection for high-duty electric heating applications.
|
|
(7/8″) |
|||||
|
KSD303
|
F12.8mm |
50°C
|
10A
|
SPST
|
Defrosting and temperature compensation for refrigerator.
|
|
(1/2″) |
|||||
|
KSD305
|
F22.25mm |
||||
|
(7/8″) |
|||||
|
KSD306
|
F22.25mm |
120°C
|
30A
|
DPST
|
Temperature control and overheating protection for electric heating applications such as water heater.
|
|
(7/8″) |
|||||
|
KSD307 |
F12.8mm (1/2″) |
220°C |
20A |
SPST |
PTC power cut out for electric heater, commercial appliance |
|
KSD308
|
F19mm |
100°C
|
16A
|
DPST
|
Temperature control and overheating protection for electric heating applications such as water heater.
|
|
(3/4″) |
|||||
|
KSD309
|
F12.8mm |
280°C
|
16A
|
SPST
|
Temperature control and overheating protection for high temperature heating applications.
|
|
(1/2″) |
|||||
|
KSD310
|
F19mm |
50°C
|
35A
|
SPST
|
Defrosting for big current refrigerator, air conditioner or other commercial cooling appliances
|
|
(3/4″) |
|||||
|
KSD312
|
F19mm |
200°C
|
/
|
DPST
|
Temperature limiter for rice cooker
|
|
(3/4″) |
|||||
|
KSD314
|
F19mm |
220°C
|
45A
|
SPST
|
Temperature control and overheating protection for big current heating applications.
|
|
(3/4″) |
|||||
|
KSD315 |
F19mm (3/4″) |
125°C |
16A |
DPST |
Manual reset for water heater protection |
Product recommendation:
( http://www.thermostat-gb.com/html/Products )
Advantages:
1. With more than 30 years experience of professional thermostat design,
manufacturing and customer service;
2. Have our own bimefal material R&D and production base;
3. With ability for integrating the different resources of the hole group and partners, to innovate and create value for different customers from different sectors and industries;
4. With various production lines and high efficient production capacity.
Q1:How can we get a quote?
A: Please offer the specification of the product, such as operating temperature, volt, current, application, quantity etc. Picture or drawing are welcome for our reference.
Q2: What is the MOQ?
A: Normally our MOQ is 1000 pcs. Larger quantity could win lower price.
Q3: What about the lead time?
A: It usually takes about only 7-15 days to produce KSD thermostat, KST thermostat and capillary thermostat would take longer time, which is about 30 days.
Q4:Which payment terms you can accept?
A: T/T, Western Union, L/C
Q5:Guarantee?
A: We offer 3 year guarantee.
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