ST11 Thermostat ST01 Bimetallic Thermostat ST05 Temperature
Protector
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’s Specification
Electrical Rating:
| 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’s Dimension
| Model | Case | Length(mm) | width(mm) | High(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’s Application and Instruction
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
H20,H21 series
thermostat’s Principle and structure
H20,H21serial 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.
H20,H21series thermal protector’s Specification
| 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,H21series
thermal protector’s Dimension
| Model | Case | Length(mm) | width(mm) | High(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 |
H20,H21series temperature protector’s Application
H20,H21series is applicable to chargeable battery, ballast,
massager, micro motor, transformer, electric tools, heat electric
appliance and instrument etc.
The product UL,CQC,TUV and RoHS certification approval.
