Active Member
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[China]
Address: No.3048, 3rd Building International Plastic City, Renzi Yuan Village, Xiegang Town, Dongguan Guangdong,China
Contact name:Amy Li
Dongguan Yusheng Electronics Co., Ltd. |
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H21 Large Current Metal Case Motor Thermal Overload Temperature Protection Temperature Cutout Switch
Quick Detail:
| Model | H21 |
| Reset Type | Auto Reset |
| Single Pole,Single Throw(SPST) | |
| Case Material: | Plastic or Metal |
| Rated Voltage & Current | 250V AC 5A/10A |
| Contact Type | Normally Closed(Open on Rise) or Normally Open(Close on Rise) |
| Operating Temperature Range | 45～150℃ |
| Temperature tolerance | ±5.0℃ |
| Contact Resistance | ≤50mΩ |
| Insulation Resistance | ≥100MΩ |
| Dielectric Strength | ≥1500V |
| Life Cycle | 10,000 Cycles |
| Certificate | CQC,TUV,UL,VDE,ROHS,REACH |
Description:
H20 serial 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.
Specifications:
1. Dimensional Outline
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2. Structural Drawing
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| No. | Name | Material | Qty |
| 1 | Case | PBT | 1 |
| 2 | Moveable spring piece | Beryllium bronze | 1 |
| 3 | Bimetallic strip | BR-1 | 1 |
| 4 | Moveable contact | AgNi10/Cu | 1 |
| 5 | Sealing | Epoxy resin | Few |
| 6 | Lead wire | 0.75mm² black silicon wire | 2 |
| 7 | Base | Brass H62 | 1 |
| 8 | Stationary Contact piece | AgNi10/Cu | 1 |
| 9 | Insulation blcok | PBT-VG30 | 1 |
| 10 | Tinning | Tin | Few |
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3. Action Temperature Table
| H20 | |||||||||
| Action Temperature | Reset Temperature | Action Temperature | Reset Temperature | ||||||
| 45±5℃ | ≥33℃ | 110±5℃ | 75±15℃ | ||||||
| 50±5℃ | ≥35℃ | 115±5℃ | 80±15℃ | ||||||
| 55±5℃ | 42±6℃ | 120±5℃ | 85±15℃ | ||||||
| 60±5℃ | 45±8℃ | 125±5℃ | 85±15℃ | ||||||
| 65±5℃ | 48±10℃ | 130±5℃ | 90±15℃ | ||||||
| 70±5℃ | 50±12℃ | 135±5℃ | 95±15℃ | ||||||
| 75±5℃ | 53±14℃ | 140±5℃ | 100±15℃ | ||||||
| 80±5℃ | 55±15℃ | 145±5℃ | 100±15℃ | ||||||
| 85±5℃ | 60±15℃ | 150±5℃ | 105±15℃ | ||||||
| 90±5℃ | 65±15℃ | 150±5℃ | 110±15℃ | ||||||
| 95±5℃ | 70±15℃ | ||||||||
| 100±5℃ | 70±15℃ | ||||||||
| 105±5℃ | 75±15℃ | ||||||||
| Remark : | |||||||||
| Reset Temperature: 2/3 of Action Temperature, tolerance is±15℃ or customized. | |||||||||
Applications:
1. Chargeable battery
2. Ballast
3. Massager
4. Motor,transformer
5. Electric tools
6. Heat electric appliance
Competitive Advantages:
1. Miniature size and expedient installation
2. Various resistances of bimetal available
3. Safe and reliable
5. High sensitivity
4. Low contact resistance
5. Life cycles more than 10,000 times
6. ROHS compliant
6. Wide application
7. Gasketed case suitable for most impregnation processes
8. There are two types of normally closed and normally open can meet customers' different requirements
9. The length and specifications of lead wire can be customized
10. Substitute SENSATA 7AM,17AM,SEKI St22 series
Tag:
Snap-action Thermostat, Resetable Thermal Cutoff Switch,
Temperature Cutoff Switch
