Auto Reset Thermal Fuse With 50-150℃ Temperature Range 10000 Life Cycle And Large Metal Casing Thermal Protector
Price:
USD 0.1~0.3/PCS
MOQ:
1000pcs
Delivery Time:
10~15 work days
Brand:
HENGHAO
Product Description
Auto Reset Thermal Fuse With 50-150℃ Temperature Range 10000 Life Cycle And Large Metal Casing Thermal Protector
H20, H21 series universal and enhanced protectors with large metal casing are composed of 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, when the environment temperature increases to the set value, the bimetallic parts perform quick action, open the contact point, and disconnect the circuit. When the device cools to safe operating temperature, the contact point automatically closes to restore normal operation.
H20, H21 Series Thermal Protector Specifications
| 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, H21 Series Thermal Protector Dimensions
| Model | Case | Length(mm) | Width(mm) | Height(mm) | Voltage & 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 | |
| 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, H21 Series Temperature Protector Applications
H20, H21 series is applicable to chargeable batteries, ballasts, massagers, micro motors, transformers, electric tools, heat electric appliances and instruments.
Manual Reset Type
Temperature sensing components consist of bimetallic strip. When the temperature reaches 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. The contact points then recover, achieving the purpose of connecting or disconnecting the circuit and restarting the circuit by manual reset.
- This type of manual reset thermostat can reset when the temperature declines 20°C after snap action by pressing the reset button (4~6 N force recommended; avoid excessive strength)
- To ensure normal function, the distance between the reset button and the close cover should not be less than 20.4mm
The product has UL, CQC, TUV and RoHS certification approval.
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Company
Dongguan Heng Hao Electric Co., Ltd
Location
No.9, five lane, Shangchegang, Shangtang road, Gekeng, Hengli Town, Dongguan City, Guangdong, China
Contact Person
Cherry Lee