mini temperature thermal protector BH-TB02B-B8D bimetallic
thermostat rated 250V 2A 30-250C certificated UL TUV CQC KC
- BH series thermostat’s Principle and structure
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:
- DC-12V max 12A; DC-24V max 10A; AC-125V max 8A; AC-250V max 16A for
BH series
- DC-12V max 4A; DC-24V max 3A; AC-125V max 3A; AC-250V max 2A for
BH-TB02 series
- 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.
- 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 |
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 |
The thermal protection switch is normally located on the A/C
compressor housings. It
is used to prevent compressor damage (overheat) through internal
friction.
This switch senses the compressor case temperature and once this
case
temperature reaches a predetermined figure the electrical circuit
to the compressor
clutch is interrupted.
As the thermal protection switch is connected in series with the
compressor clutch
once the compressor case temperature lowers to a predetermined
figure the
compressor clutch is then re-energized.