TB02B-BB8D 9700 Series Bimetallic Thermostat BW-ABS BW-ABJ
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 Specifications
Electrical Rating
| Parameter | Value |
| 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 Dimensions
| Model | Case | Length(mm) | Width(mm) | Height(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 Applications and Instructions
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 | 30℃ | 100 | 100℃ |
| 35 | 35℃ | 105 | 105℃ |
| 40 | 40℃ | 110 | 110℃ |
| 45 | 45℃ | 115 | 115℃ |
| 50 | 50℃ | 120 | 120℃ |
| 55 | 55℃ | 125 | 125℃ |
| 60 | 60℃ | 130 | 130℃ |
| 70 | 70℃ | 135 | 135℃ |
| 75 | 75℃ | 140 | 140℃ |
| 80 | 80℃ | 145 | 145℃ |
| 85 | 85℃ | 150 | 150℃ |
| 90 | 90℃ | | |
BW Series Thermostat / KSD9700 Thermal Protector / BW9700 Temperature Protector
BW Series Thermostat Principle and Structure
BW 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.
BW Series Thermal Protector Specifications
- Switch type: normally closed, normally opened.
- Operating Voltage / Current: AC250V / 5A; AC125V / 8A
- Operating Temperature: 40~150℃ (one step for every 5°C)
- Standard Tolerance: +-3°C / +-5°C / +-7°C
- Reset temperature: operating temperature decrease by 15-45°C
- Contact Closure resistance: ≤50mΩ
- Insulation resistance: ≥100mΩ
- Electric strength: AC1500V/1min free from phenomena of break down and flashover.
- Service life: 10000 times
BW Series Thermal Protector Dimensions
| Model | Length (mm) | Width (mm) | Height (mm) |
| BW9700 | 20 | 7.3 | 3.8 |
BW Series Temperature Protector Applications
BW series is applicable to chargeable battery, ballast, massager, motor, transformer, electric tools, heat electric appliance and instrument etc.
| Code | Open temperature | Reset temperature | Code | Open Temperature | Reset Temperature |
| 045 | 45+-4.5℃ | ≥33℃ | 105 | 105+-5℃ | 75+-15℃ |
| 050 | 50+-5℃ | ≥35℃ | 110 | 110+-5℃ | 75+-15℃ |
| 055 | 55+-5℃ | 42+-6℃ | 115 | 115+-5℃ | 80+-15℃ |
| 060 | 60+-5℃ | 45+-8℃ | 120 | 120+-5℃ | 85+-15℃ |
| 065 | 65+-5℃ | 48+-10℃ | 125 | 125+-5℃ | 85+-15℃ |
| 070 | 70+-5℃ | 50+-12℃ | 130 | 130+-5℃ | 90+-15℃ |
| 075 | 75+-5℃ | 53+-14℃ | 135 | 135+-5℃ | 95+-15℃ |
| 080 | 80+-5℃ | 55+-15℃ | 140 | 140+-5℃ | 100+-15℃ |
| 085 | 85+-5℃ | 60+-15℃ | 145 | 145+-5℃ | 100+-15℃ |
| 090 | 90+-5℃ | 65+-15℃ | 150 | 150+-5℃ | 105+-15℃ |
| 095 | 95+-5℃ | 70+-15℃ | 155 | 155+-5℃ | 110+-15℃ |
| 100 | 100+-5℃ | 70+-15℃ | | | |
The product UL, CQC, VDE and RoHS certification approval.
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