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Snap Action KSD302 Thermostat High Performance For Electric Welding Machine

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Snap Action KSD302 Thermostat High Performance For Electric Welding Machine

Snap Action KSD302 Thermostat High Performance For Electric Welding Machine
Snap Action KSD302 Thermostat High Performance For Electric Welding Machine

Large Image :  Snap Action KSD302 Thermostat High Performance For Electric Welding Machine

Product Details:
Place of Origin: DONGGUAN,CHINA
Brand Name: HENGHAO
Certification: UL CQC TUV ROHS
Model Number: KSD302
Payment & Shipping Terms:
Minimum Order Quantity: 1000PCS
Price: US$0.5-0.8 PER PC
Packaging Details: 1650 PCS PER CARTON
Delivery Time: 7-10 WORKING DAYS
Payment Terms: TT FOB SZ
Supply Ability: 1000000PCS PER MONTH

Snap Action KSD302 Thermostat High Performance For Electric Welding Machine

High Light:

bimetal thermal switch


bimetal thermostat switch

KSD302 snap-action thermostat,KSD302 bimetal thermostat



KSD302 large current thermostat / KSD302 large current thermal protector


1. KSD302 large current temperature protector’s Principle and structure

KSD302 series temperature controller, is to bring the double shell fully enclosed metal contact temperature type temperature relay, according to heat bilges cold shrink principle make sheet metal bending, to set off the temperature, temperature drop can be manually reset after, on electric up security role.

2. KSD302 large current thermostat’s specification

(1) Function: temperature protection and overheating protection, prevent dry heating

(2) The electrical characteristics: AC250V ~ 400 V / 15 A ~ 60 A

(3) the highest environment temperature: 180 °C

(4) working temperature range: 0 °C ~ 250 °C (optional). Temperature tolerance: +- 5

(5) Normal headscarf insulation resistance: > 100 M Ω

(6) normal contact resistance: more than 100 m Ω

(7) service life: > 50000 times

3. Application of KSD302 large current temperature protector

(1) Electric welding machine, electric

(2) Electric equipment,

(3) Electric products,

(4) Steam heater

(5) High power machinery equipment

(6) Demand Water Heaters

4. Attention of KSD302 large current thermostat

(1) By using the contact temperature type when installed, should make metal cap surface adhere is accused of mounting surface of the appliance.

(2) When installation shall not cover surface pressure deformation, lest affect performance.

(3) To prevent leakage, when using, can't let the fluid infiltration within the thermostat, lest affect electric reliability.

(4) This product for bipolar type wiring way, when using, according to mark symbol, correct connection.

The product should be a headscarf in relative humidity is less than 90%, the environment temperature below 40 ℃ ventilation, clean, dry, no corrosive gas storage in the warehouse.



Thread copper head thermostat / Thread copper head thermal protector

1.    Thread copper head thermostat’s Principle and structure

Utilize overseas high-quality dished dual metallic piece as temperature gathering element, will switch installed in water temperature the temperature sensitive parts, dynamic collection the temperature change of the water tank, through the disc in metal temperature deformation, and transient temperature points in beating principle, with institutions in the role of the two contacts quickly switched on, start fan, cooling water of the water, of automobile engine have security role.

2.     Thread copper head thermal protector’s use conditions

2.1.         relative humidity in + 20 ℃ environment give 95%

2.2. Atmospheric pressure Kpa 86-106

2.3. Working location: any

3. Thread copper head temperature protector’s specification


 Open temperature

 -10°C --280°C

 Reset temperature

 8°C --20°C

 Rated Voltage


Rated Current


Insulation resistance

DC500V 10MΩ (normal)

Contact resistance

Rs≤50mΩ (initial value)

Open resistance



 AC1000V 50HZ 30S(normal)

Life cycle

≥100,000 times

Contact thread

The common thread: M14*1.5;M16*1.5;M18*1.5;M20*1.5;M22*1.5
Metric taper thread:ZM10*1.5;ZM14*1.5;ZM18*1.5
60 ° tapered pipe thread:NPT1/8;NPT1/4;NPT3/8;NPT1/2


Suitable for cars, trucks, such as auto cooling water tank of the fan motor control, to maintain the best car engine temperature


According to customer needs to develop other temperature series, different interface and install plug form, different electric parameters of the products


4. Installation and size


1.     Noted and attention

1.1. Before installation, please check whether the product specification and your engine photograph to suit;

1.2. The product installation must be approved by a professional maintenance personnel for installation.



Contact Details
Dongguan Heng Hao Electric Co., Ltd

Contact Person: Cherry Lee

Tel: +86-13431163393

Fax: 86-769-82657011

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