Bimetal Thermostat for Fractional Motor Bw9700 250V 5A 50-150c

• Usage: Thermostat
• Display Type: Mechanical
• Certification: UL, ISO, RoHS, TUV, CQC
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: H21
• Brand: Henghao
• Type: Temperature Sensor
• Control Method: Mechanical
• Material: Steel Plastic
• Life Cycle: 10000 Times
• Transport Package: 1000 PCS Per Box
• Trademark: henghao
• Origin: Dongguan, China
• Production Capacity: 100000000000 Pieses /Year
• Package Size: 2.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 0.060kg

Product Description

BW series thermostat / KSD9700 thermal protector / BW9700 temperature protector
 

1. H20,H21 series thermostat's Principle and structure

H20,H21serial universal and enhanced protectors with large metal casing are composed of the thermal conductive metal casing, bimetallic parts welded with silver alloy contact point, conductive bracket, insulation fixation stand, fixed contact strip and heat resistance cable. In case of abnormal operation, along with the increase of the environment temperature to the set value, the bimetallic parts perform quick action, open the contact point, and disconnect the circuit. When the device is cooled to the temperature for safe operation, the contact point will automatically closes and recover normal operation.
 

1. H20,H21series thermal protector's Specification
   1. Switch type: normally closed, normally opened.
   2. Operating Voltage / Current: AC250V / 5A; AC125V / 8A
   3. Operating Temperature: 40~150ºC (one step for every 5°C)
   4. Standard Tolerance: ±3°C / ±5°C / ±7°C
   5. Reset temperature: operating temperature decrease by 15-45°C
   6. Contact Closure resistance: ≤50mΩ
   7. Insulation resistance: ≥100mΩ
   8. Electric strength: AC1500V/1min free from phenomena of break down and flashover.
   9. Service life: 10000 times
   10.  
2. H20,H21series thermal protector's Dimension

Model	L(mm)	W(mm)	H(mm)	Electrical rating	Lead wire (mm)
H21 Metal case	18.5	7.5	3.8	5A/250V; 10A/250V	AWG#22 3266;AWG#20 3135 silicone wire L1=L2=70mm, or according to customer's requirement
	18.5	8.0	4.1	16A/250V
H20 Plastic case	18.5	8.0	4.0	5A/250V; 10A/250V

 

1. H20,H21series temperature protector's Application

H20,H21series is applicable to chargeable battery, ballast, massager, micro motor, transformer, electric tools, heat electric appliance and instrument etc.
 

1. H21 and H20 thermal protector's competitive advantage

Small size and easy to installation
Quick bimetallic strip, fast reaction
The life time high than 10,000 times
Prevention again leak of vacuum impregnation process
Replace of SENSATA 17AM 7AM, SEKI ST-22, PEPI etc

 

1. Open temperature and reset temperature compare sheet

Code	Open Temp.	Reset Temp.	Code	Open Temp.	Reset Temp.
40	40°C±5°C	≥30°C	100	100°C±5°C	65°C±10°C
45	45°C±5°C	≥30°C	105	105°C±5°C	70°C±10°C
50	50°C±5°C	≥30°C	110	110°C±5°C	75°C±10°C
55	55°C±5°C	≥35°C	115	115°C±5°C	75°C±10°C
60	60°C±5°C	40°C±10°C	120	120°C±5°C	80°C±10°C
65	65°C±5°C	45°C±10°C	125	125°C±5°C	85°C±10°C
70	70°C±5°C	45°C±10°C	130	130°C±5°C	85°C±10°C
75	75°C±5°C	50°C±10°C	135	135°C±5°C	90°C±10°C
80	80°C±5°C	55°C±10°C	140	140°C±5°C	95°C±10°C
85	85°C±5°C	55°C±10°C	145	145°C±5°C	95°C±10°C
90	90°C±5°C	60°C±10°C	150	150°C±5°C	100°C±10°C
95	95°C±5°C	60°C±10°C

 

1. The drawing of H21 and H20 thermal protector
2.