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Basic Info.

Model NO.	ksd9700
Control Method	Bimetallic
Operating Principle	Thermostat
Material	Steel, Plastic, Aluminium
Life Cycle	10000 Times
Transport Package	1000PCS Per Bag
Specification	18*8*4mm
Trademark	HENGHAO
Origin	Dongguan, China
HS Code	9032100000
Production Capacity	100,000,000,000 PCS/Year

Product Description

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

Electrical Rating	DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 16A
Open temperature	(30~150)±5°C; 5°C a step
Reset temperature	2/3 of the action temperature with tolerance of ±15°C. Reset temperature can also be provided according to customers' requirement.
Life times	10000 times
Contact Closure resistance:	≤50mΩ
Insulation resistance:	≥100mΩ
Electric strength:	AC1500V/1min free from phenomena of break down and flashover.
UL File no	E487478
CQC certificate no	CQC16002142880
TUV certificate no	B160592241002

1. H20,H21series thermal protector's Dimension

Model	Case	Length(mm)	width(mm)	High(mm)	Vol.&Current	Lead wire
H20	Plastic	18.5	8	4	DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 10A	#20 3135, end 5mm half tripping, length is 70mm, or according to customer's require
H21	Metal	18.5	7.3	3.8
H21	Metal	20	8	4	AC250V 20A	#16 3135
BH-A1D	Metal	15	6.6	3.2	DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V	#20 3135, #22 3266,#22 3135, end 5mm half tripping, length is 70mm, or according to customer's require
BH-B2D	Plastic	15	7.1	3.8
BH-TB02B-B8D	Plastic	15	5.2	2.4	DC-12V max 4A; DC-24V max 3A; AC-125V max 3A; AC-250V max 2A	3266-AWG24#, 3135-AWG24# or nickel strip normally, length is 70 mm or according to customer's require

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.
The product UL,CQC,TUV and RoHS certification approval.