Bimetal Temperature Switch 10A 250V 250℃ 20AWG 70mm Thermostat For Hair Curler Straightener
Application scope Of The Bimetal Temperature Switch 10A 250V 250℃
BW Series thermal protector has small, nimble, long life and other characteristics, widely used in a variety of tubular motor, induction cooker, vacuum cleaners, coils, transformers, electric heaters, ballast, electric appliances, fluorescent lamp ballasts, auto motor, IC and general electrical equipment overheating over current double protection.
Product Features Of The Bimetal Temperature Switch 10A 250V 250℃
BW series thermal protector is to adopt a certain geometry of bimetallic strip, without auxiliary mechanism, only by the bimetallic strip themselves feeling gentle heating current, rapid changes in the state of the bimetallic element, direct drive contact automatic cutting and processing circuit, overheat and overload protection
Product dimension Of The Bimetal Temperature Switch 10A 250V 250℃
Plastic shell: 4.2mm×8.0mm×20.0mm
Metal shell :3.8mm×7.4mm×20.0mm
Dimension: mm
| Code | Name | Material | Code | Name | Material |
| A | Metal case | δ0.4 with SPCE | G | Base | Cu H62 |
| B | Shrapnel | Bronze | H | Static contact | AgNi10/Cu |
| C | Bimetal | BR-1 | I | Insulator | PBT-VG30 |
| D | Action contact | AgNi10/Cu | J | Insulation sleeve | Polyester sleeve |
| E | Sealants | Epoxy resin | K | Immersion Tin | Environmental tin |
| F | Cable | 20AWG | | | |
Operating temperature Of The Bimetal Temperature Switch 10A 250V 250℃
Operating temperature(OFF): 250±5℃
Operating Temperature characteristics (regular) table
| Part number | Operating temperature (℃) | Reset Temperature(℃) | Part number | Operating temperature (℃) | Reset Temperature (℃) |
| BW-50℃ | 50±5 | 30±8 | BW-105℃ | 105±5 | 70±15 |
| BW-55℃ | 55±5 | 35±10 | BW-110℃ | 110±5 | 75±15 |
| BW-60℃ | 60±5 | 40±10 | BW-115℃ | 115±5 | 75±15 |
| BW-65℃ | 65±5 | 45±10 | BW-120℃ | 120±5 | 80±15 |
| BW-70℃ | 70±5 | 45±15 | BW-125℃ | 125±5 | 85±15 |
| BW-75℃ | 75±5 | 50±15 | BW-130℃ | 130±5 | 90±15 |
| BW-80℃ | 80±5 | 55±15 | BW-DCM-135℃ | 135±5 | 95±15 |
| BW-85℃ | 85±5 | 55±15 | BW-DCM-140℃ | 140±5 | 100±15 |
| BW-90℃ | 90±5 | 60±15 | BW-DCM-145℃ | 145±5 | 105±15 |
| BW-95℃ | 95±5 | 65±15 | BW-DCM-150℃ | 150±5 | 110±15 |
| BW-100℃ | 100±5 | 65±15 | Customized available |
Reliability Test Of The Bimetal Temperature Switch 10A 250V 250℃
| Appearance: | Thermal protector of shell can not have burrs, the phenomenon such as corrosion, crack, deformation；marking should be correct, correct, clear, durable resistance to wipe； |
Performance: Electrical rating: | Rated current:AC250V/10A
Maximum short circuit current:DC 12V 100A
Minimum use of electric current:DC 5V 10mA |
| Contact Resistance: | Contactor in the closed state, thermal protector the contact resistance between the two touch points should be not greater than 50 m Ω. |
| Insulation Resistance: | Insulation resistance should be more than 100 m Ω . |
| Electric Strength: | For thermal protector applied between the following parts of the basic frequency is 50 hz sine wave test voltage (RMS), lasted 1 s shall be no flashover or breakdown phenomenon
In the condition of thermal breaking contact, between the lead wire: 500V
In contact normally closed conditions, between lead and shell surface of the insulating layer: 1500V |
| Moisture-proof: | Place it in the ambient temperature is 25 ℃, relative humidity is 95% for 10 hours later, meet requirements 6.4 and 6.5, and no abnormal change in appearance structure. |
| Heat Cycling: | Place at 20 ℃ and + 90 ℃ temperature every 2 hours , cycle over 10 times, comply with requirement 6.4, 6.5, and no abnormal change in appearance structure. |
| Heat Resistance: | Placed 10 hours later in 140 ℃ temperature, meet requirements 6.4 and 6.5, no abnormal change in structure and appearance. |
| Repeated opening and closing the durability: | In room temperature, connected to AC 50HZ&220V&power factor COS∮ = 0.7 under the condition of rated load test after 2000 times, rated operating temperature should be within + / - 5 ℃ of initial value, and contact no welding, after 8000 times thermal protector should still can continue to work. |
| Cold endurance: | Placed in - 20 ℃ temperature for over 10 hours, satisfies requirement 6.4 and 6.5, no abnormal change in structure and appearance.
Action the change in temperature is less than 5 ℃ |
| Vibration: | Vibration frequency 50HZ,amplitude 0.35 mm,last 90S of fixed frequency test,test after the rated breaking temperature shall satisfy the requirements of 6.2. |
| Drop impact resistance: | Any coagulation from 1200 mm height fell to the ground after 3 times, its appearance structure without changes.
Operating temperature is within 5℃ |
| Wire pull strength performance: | With not less than 30 n axial static tension, lasted for 5 seconds, fuses without fracture, loose, falls off phenomenon. |
