KSD301 temperature protector's Principle and structure
The main principle of KSD series thermostat is that one function of bimetal discs is snap action under the change of sensing temperature. The snap action of disc can push the action of the contacts through the inside structure, and then caused on of off the circuit finally. The main characteristic are the fixation of working temperature, the reliable snap action, less flashover longer working life and lessradiointerference
KSD301 thermostat's specification
| Voltage & Current |
AC 125V max 15A; AC250V 5A 10A 15A max 16A |
| Action Temperature |
0~250ºC |
| Recovery and action temperature difference |
0 to 25 degrees, or according to client's request. |
| Temperature deviation: |
±3 / ±5 / ±10 degree or according to client's request |
| Circuit resistance |
≤50mΩ (Initial value) |
| Insulation resistance |
AC50Hz 1500V / min, no breakdown blinding (Normal State) |
| Life cycle |
≥100000 times |
| Contact type |
Normally closed or Normally open |
| Two kinds of mounting bracket |
movable or immovable |
| Terminal type |
a. Terminal type: 187series of 4.8*0.5mm and 4.8*0.8mm, 250 series of 6.3*0.8mm
b. Terminal Angle: bending angle: 0~90°C optional |
| House |
plastic or ceramic. |
| Temperature sensor face |
aluminum cap or copper head. |
| Certificate |
UL: E487478
TUV: B1170792241003
CQC ceramic: CQC15002129356
CQC plastic: CQC15002129343
KC ceramic: |
Difference of auto reset type and Manual reset type
3.1. Manual reset type: Temperature sensing components consist of bimetallic strip. When the temperature reached the action temperature range, it will jump quickly and the movable disc disconnects. When the temperature declines to a fixed temperature point, the contact point cannot reset until reconnecting the circuit by pushing the reset button. And then the contact points recover, reaching a purpose of connecting or disconnecting the circuit and restarting the circuit by manual reset. (Kindly reminder: 1. This type of manual reset thermostat can reset when the temperature declines 20 ° C after snap action by pressing the reset button. And 4~6 N will be advisable; Please don't use too much strength. 2. To ensure the normal function, the distance between the reset button and the close cover should not be less than 20.4mm. )
3.2. Manual reset type: Temperature sensing components consist of bimetallic strip. When the temperature reached the action temperature range, it will jump quickly and the movable disc disconnects. When the temperature declines to a fixed temperature point, the contact point can auto reset and start working.
KSD301 bimetal thermostat's Application
It is used as temperature control for household electric appliances and widely applied in coffee pots, automatic toasters, laminators, electric water pots, steam guns, steam irons, wind warmers, microwave ovens, water dispensers, etc.
| Open temp. |
Reset temp. |
Open temp. |
Reset temp. |
Open temp. |
Reset temp. |
| -20ºC+-5ºC |
5ºC+-5ºC |
95ºC+-5ºC |
80ºC+-5ºC |
205ºC+-5ºC |
175ºC+-10ºC |
| -15ºC+-5ºC |
5ºC+-5ºC |
100ºC+-5ºC |
80ºC+-10ºC |
210ºC+-5ºC |
180ºC+-10ºC |
| -10ºC+-5ºC |
5ºC+-5ºC |
105ºC+-5ºC |
85ºC+-10ºC |
215ºC+-5ºC |
185ºC+-10ºC |
| 0ºC+-5ºC |
-10ºC+-5ºC |
110ºC+-5ºC |
90ºC+-10ºC |
220ºC+-5ºC |
190ºC+-10ºC |
| 5ºC+-5C |
-5ºC+-5ºC |
115ºC+-5ºC |
95ºC+-10ºC |
225ºC+-5ºC |
195ºC+-10ºC |
| 10ºC+-5ºC |
0ºC+-5ºC |
120ºC+-5ºC |
100ºC+-10ºC |
230ºC+-5ºC |
200ºC+-10ºC |
| 15ºC+-5ºC |
5ºC+-5ºC |
125ºC+-5ºC |
105ºC+-10ºC |
235ºC+-5ºC |
205ºC+-10ºC |
| 20ºC+-5ºC |
5ºC+-5ºC |
130ºC+-5ºC |
110ºC+-10ºC |
240ºC+-5ºC |
210ºC+-10ºC |
| 25ºC+-5ºC |
10ºC+-5ºC |
135ºC+-5ºC |
115ºC+-10ºC |
245ºC+-5ºC |
215ºC+-10ºC |
| 30ºC+-5ºC |
15ºC+-5ºC |
140ºC+-5ºC |
120ºC+-10ºC |
250ºC+-5ºC |
220ºC+-10ºC |
| 35ºC+-5ºC |
20ºC+-5ºC |
145ºC+-5ºC |
125ºC+-10ºC |
255ºC+-5ºC |
225ºC+-10ºC |
| 40ºC+-5ºC |
25ºC+-5ºC |
150ºC+-5ºC |
130ºC+-10ºC |
260ºC+-5ºC |
230ºC+-10ºC |
| 45ºC+-5ºC |
30ºC+-5ºC |
155ºC+-5ºC |
130ºC+-10ºC |
265ºC+-5ºC |
235ºC+-10ºC |
| 50ºC+-5ºC |
35ºC+-5ºC |
160ºC+-5ºC |
135ºC+-10ºC |
270ºC+-5ºC |
240ºC+-10ºC |
| 55ºC+-5ºC |
40ºC+-5ºC |
165ºC+-5ºC |
140ºC+-10ºC |
275ºC+-5ºC |
245ºC+-10ºC |
| 60ºC+-5ºC |
45ºC+-5ºC |
170ºC+-5ºC |
145ºC+-10ºC |
280ºC+-5ºC |
250ºC+-10ºC |
| 65ºC+-5ºC |
50ºC+-5ºC |
175ºC+-5ºC |
150ºC+-10ºC |
285ºC+-5ºC |
255ºC+-10ºC |
| 70ºC+-5ºC |
55ºC+-5ºC |
180ºC+-5ºC |
155ºC+-10ºC |
290ºC+-5ºC |
260ºC+-10ºC |
| 75ºC+-5ºC |
60ºC+-5ºC |
185ºC+-5ºC |
155ºC+-10ºC |
295ºC+-5ºC |
265ºC+-10ºC |
| 80ºC+-5ºC |
65ºC+-5ºC |
190ºC+-5ºC |
160ºC+-10ºC |
300ºC+-5ºC |
270ºC+-10ºC |
| 85ºC+-5ºC |
70ºC+-5ºC |
195ºC+-5ºC |
165ºC+-10ºC |
Or according to client's request |
| 90ºC+-5ºC |
75ºC+-5ºC |
200ºC+-5ºC |
170ºC+-10ºC |
DRAWING AND CERTIFICATE
HENGHAO SALES AND TECHNICAL SUPPORT
1)Sales philosophy:
Customer first, continuing to create value for customers.
2)Customer response:
HENGHAO has improved the sales system and lean management system, well-trained sales team members foreigners, learning and research, and strive to provide customers with timely and effective solutions and products.
3)Free samples and delivery:
HENGHAO offers free standard samples and customer demand customized sample 100 or less, freight borne by the customer. Product categories covering 12 categories, thousands of models, existing stock more than 50 million. (Represented by sheet pcs)
Delivery: sample and stock, 3 to 7 days delivery; and the specific needs of a given product samples or customer order takes 4 weeks.
4)Quality Systems:
HENGHAO has improved and strict quality management system, the factory passed the ISO9001 management system, the product passed the UL, TUV CQC KC ROHS and other various safety certification. We have a comprehensive standard to achieve UL witnessed laboratory.
5)Transportation:
HENGHAO has the import and export rights recognized by the Ministry of Commerce of China, and is equipped with professional customs brokers and freight forwarding companies to deliver orders. We will ensure that the products reach customers as soon as possible through the transportation methods that customers like, including UPS, TNT, FedEx, sea, and air. For customers in Russia, Europe, the Middle East and other places, we can also use the cheap and fast China-Europe Railway to transport goods. Its freight is quite low and the goods can be delivered within a week. We also accept the shipping method designated by the customer and we will deliver the goods to the warehouse designated by the customer. All transportation costs within China will be borne by our company, and customers only need to pay the freight outside China.
6)Sales service and technical support:
Delivery provides quality test data and report quality certification, also offers a free sample test reports and follow-up technical support for customers.
We have OEM and ODM service, can be customized according to customer special shape products.
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