250V 10A 120 Deg C Overheat Protection H20 Series Thermal Cutoff
Switch
Quick Detail:
| Model | H20 |
| 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 thermal overload protector is using a special shape of double
metal piece without auxiliary mechanism. It is composed of bimetal strip, moveable contact, stationary contact piece, fixed base, moveable spring piece, case and temperature
resistance lead wire. The status of metal piece has the fast change is only depended on
the self temperature sensing of the metal piece and the current
thermal reaction. It makes the contact realize the cut off the
power automatically and get through the power. The over heating
protection and overload protection will be raised. H20 thermal
overload protector can be applied for transformers; battery;
lighting electrics; cleaning machine; water pump; electric tools;
electric heating pad; and the household appliances.
Work Principle:
H20 Thermal overload protector is using the double metal piece as e
temperature sensing element. When the electrics work normally, the
double piece is at the free status, the contact is at close/break
off position. When the temperature rises to the action temperature,
the double metal piece acts fast by the inside force caused by
heating, open/close the contact, cut off/get through the power, the
temperature protection function is raised. When the temperature
lows to the reset temperature, the contact closes/breaks off
automatically and recovery to normal work status.
Widely used in:
water dispenser, water heater, sandwich toaster, dishwasher, dryer,
disinfection cabinet, microwave oven, electric coffee pot, electric
cooking pot, refrigerator, air conditioner, glue machine, office
equipment, car seat heater, warm water bag, hair dryer, vacuum
cleaner, electric heating stove, iron, electric motor and other
electric heating appliances.
Specifications:
1. Dimensional Outline
2. Structural Drawing
| 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 |
3. Action Temperature Table
| H20 |
|
| Action Temperature | Reset Temperature | Action Temperature | Reset Temperature |
| 40±5℃ | ≥27℃ | 110±5℃ | 73±15℃ |
| 45±5℃ | ≥27℃ | 110±5℃ | 73±15℃ |
| 50±5℃ | ≥30℃ | 115±5℃ | 76±15℃ |
| 55±5℃ | ≥30℃ | 120±5℃ | 80±15℃ |
| 60±5℃ | 40±15℃ | 125±5℃ | 83±15℃ |
| 65±5℃ | 43±15℃ | 130±5℃ | 86±15℃ |
| 70±5℃ | 46±15℃ | 135±5℃ | 90±15℃ |
| 75±5℃ | 50±15℃ | 140±5℃ | 93±15℃ |
| 80±5℃ | 53±15℃ | 145±5℃ | 96±15℃ |
| 85±5℃ | 56±15℃ | 150±5℃ | 100±15℃ |
| 90±5℃ | 60±15℃ | | |
| 95±5℃ | 63±15℃ | | |
| 100±5℃ | 67±15℃ | | |
| 105±5℃ | 70±15℃ | | |
| Remark : |
| Reset Temperature: 2/3 of Action Temperature, tolerance is±15℃ or
customized. |
Applications:
1. HID ballasts
2. Battery packs
3. Fractional Power Motor
4. AC brushless motorand pump
5. DC motor
6. Heating appliance
7. Vacuum cleaner
8. Auto Wiper
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:
Thermal Protector Switch, Motor Protector, Thermal Cut-out,
Overload Protector, Overheat Protector
