Water Pump 105C 120C 125C 130C 135C 140C 150C 25A 30A 35A 40A BR
BRI Thermal Overload Protector for Pumps
Description of BRI Thermal Protector
The BRI series thermal protector are temperature and current
protectors, which made of thermal bimetal, a high-quality thermal
sensitive material imported from Japan. This product is mainly used
for overheat overload protection of motors and electric appliances.
There are these features: quick temperature sensing, sensitive
action and reliable performance.Versatility and no need
maintenance.
Specifications of BRI Thermal Switch
1. rated break temperature: 105 ℃-150 ℃( ±5 ℃)
2. reset temperature: break temperature -30℃ (±15 ℃)
3. rated voltage: 250V 380V
4. contact resistance: ≤50m Ω
5. Max passing current: 50A max
6. electrical strength: AC 1500V/min
7. durability: > 2000 times
8. wire diameter: 1.5 mm²
9. range of application : <3000 Ｗ
Characteristics of BRI Temperature Switch
1. Pure temperature design, small current effect
2. Epoxy sealing to ensure vacuum paint, waterproof and oil proof
3. The fully enclosed structure can prevent the components from
being polluted by dust or magazines and damaged by external forces
4. The temperature is preset before leaving the factory for the
control of a single temperature range
5. Each part strictly implements the environmental protection
standard of European ROHS
6. Shell overcurrent can be used with external casing insulation
Structure and Working Principle of BRI Temperature Protector
This product is produced according to the thermal bimetal material
heated bending force characteristics, the butterfly double metal
components for special treatment, with the increase of temperature,
butterfly storing energy device, when the temperature reaches
thermal protector rated breaking temperature, the effects of
butterfly element force moment reverse action, disconnect contact,
to cut off the circuit of protected, so as to achieve protection
function;When the temperature drops to the automatic reset
temperature of the thermal protector, the contact closes the
connection circuit and the power is restored.When the current of
the protected body exceeds the rated current, the butterfly element
generates heat energy due to the current. When the temperature of
the thermal protector is reached, the acting force generated by the
butterfly element will reverse in an instant and cut off the
circuit, thus achieving the protection function.
Applications of BRI Temperature Protector
Widely used in submersible pumps, various AC and DC high-power
motors, solar water heaters, heating pipes, power tools, battery
packs, fluorescent lamp ballasts, transformers, etc.
Drawing of BRI Temperature Protector
Motor Protection Can Be Referred to The Following Table
| Motor insulation grade | C | D | E | F | G | H | I |
| temperature | 105°C | 110°C | 115°C | 120°C | 130°C | 140°C | 150°C |
Higher Current BRI Series Thermal Protector
Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
MP/Whatsapp: +86 13532772961
Wechat: HFeng0805
Skype: andywutechrich
QQ: 969828363
