St-22temperature Cut off Switch, St-22 Bimetal Temperature Switch

• Customization: Available
• Life Cycle: 10000 Times
• Voltage & Current: 250V 16A
• Model NO.: ST-22
• Contact Type: Normally Closed or Normally Open
• Switch Type: Auto Reset or Manual Reset
• Transport Package: 1000 PCS Per Carton
• Specification: 12
• Trademark: HENGHAO
• Origin: Dongguan, China
• HS Code: 9032100000
• Production Capacity: 100000000000 Pieses /Year
• Package Size: 3.00cm * 6.00cm * 9.00cm
• Package Gross Weight: 0.100kg

Product Description

BH series thermostat / Miniature thermal protector / Rechargeable battery thermostat  
BH series thermostat's Principle and structure
BW & BH series that can protect against over-current and over-temperature are sealed firmly, small internal resistance, no noise and reset automatically. When current through bimetal that are sensitive to temperature and current, the status of the bimetal will be changed by over-temperature or over-current to cut off circuit or switch on circuit. BH series are safer than normal protectors, as there is no temperature effect lag under condition of sudden big current.

BH series thermostat's Specification
Electrical Rating:

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
Size	L15mm W7.1mm H3.8mm
Lead wire	#22 3266, end half tripping, length is 70mm, or according to customer's require
UL File no	E487478
CQC certificate no	CQC16002142880
TUV certificate no	B160592241002

BH series 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

BH series thermostat's Application and Instruction
BH series thermal protectors ,effective reliable security protector and alarm devices, are widely used in various types 1.5 horsepower motors, lighting device, inverter welding machine, switch power, rechargeable battery pack, fluorescent lamp ballasts, portable power tools, electric appliances and other electric equipment to prevent from over-current & over-heating caused by abnormal work status. Enforced types that can withstand pressure of 3.5MPa are fit for build-in-installation of plastic coated motor.

Code	Temperature	Code	Temperature
30	30ºC	100	100ºC
35	35ºC	105	105ºC
40	40ºC	110	110ºC
45	45ºC	115	115ºC
50	50ºC	120	120ºC
55	55ºC	125	125ºC
60	60ºC	130	130ºC
70	70ºC	135	135ºC
75	75ºC	140	140ºC
80	80ºC	145	145ºC
85	85ºC	150	150ºC
90	90ºC

BW series thermostat / KSD9700 thermal protector / BW9700 temperature protector
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.

H20,H21series thermal protector's Specification

1. 1.  

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

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

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.