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TB02 miniature and slim Thermal Protectors and Thermal Switches stand out from other Thermal Protectors for miniature size, super low action temperatures, super low internal resistance, optional fixing socket for screw fix. They are the best for overtemperature and overcurrent protection of battery packs, Li-ion batteries, power banks, etc.
Descriptions
※Features and Advantages
* The smallest sized thermal protector with the lowest internal resistance, best for uses in battery packs, Li-ion batteries, power banks, etc.
* Miniature size for maximum design flexibility
* Low internal resistance, lower than 25 milliohm
* Snap action bimetal disc, fast responding speed
* Service life more than 10,000 cycles
* Overcurrent and overtemperature dual protection
* 70mm default wire leads, customizable as per requirements
* Perfect and lower-cost replacement of imported peers like Sensata 4mm/6mm, PEPI, ISUZU IP405/505, etc.
* Available in Normally Closed and Normally Open types.
※Fields of applications
* Rechargable battery packs
* Shade pole motors
* Alternating motors and pumps
* Fluorescent ballasts
* Transformers
* Electric heating appliances
* Portable electrical tools
※Technical parameters
* Product dimensions: 15x5.4x2.4mm
* Contactor capacity: 10,000 cycles (DC12V/4A, DC24V/3A, AC120V/3A, AC250V/2A)
* Trip off temperature: 30~155°C
*Tolerance: +/-5, +/-3, +/-1°C
* Internal resistance: Less than 25 milliohm
Certifications
All our products of BH-TB02 series are certified with UL, cUL, VDE, CQC, and RoHS and REACH environmental protection decrees are strictly implemented. Larger and clear reports are available upon request when appropriate.
Please request clear copies of the certificates and test reports of the certifications when necessary.
Structure
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Remarks: Shell material can resist 200°C temperature, and flame class UL94 V-0.
Numbering Rules:
Working Principle
This thermal switch will cut off the circuit automatically in case of overload or overheat. TOPRO BH-TB02 thermal protectors use the same snap-action principle of Klixon protectors. This bimetal disc senses the heat from the equipment which a BH-TB02 product is installed on. When the temperature of the disc reaches a predetermined calibration point, the disc snaps open the contacts, thus breaking the current path. When the equipment returns to a normal operating range, the BH-TB02 protector resets (closes circuit) automatically.
Temperature Code
|
Action Temperature (°C) |
Reset Temperature (°C) |
Action Temperature (°C) |
Reset Temperature (°C) |
Action Temperature (°C) |
Reset Temperature (°C) |
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| 30±3 | ≥20 | 75±5 | 53±14 | 120±5 | 85±15 | ||||||
| 35±3.5 | ≥25 | 80±5 | 55±15 | 125±5 | 85±15 | ||||||
| 40±4 | ≥30 | 85±5 | 60±15 | 130±5 | 90±15 | ||||||
| 45±4.5 | ≥33 | 90±5 | 65±15 | 135±5 | 95±15 | ||||||
| 50±5 | ≥35 | 95±5 | 70±15 | 140±5 | 100±15 | ||||||
| 55±5 | 42±6 | 100±5 | 70±15 | 145±5 | 100±15 | ||||||
| 60±5 | 45±8 | 105±5 | 75±15 | 150±5 | 105±15 | ||||||
| 65±5 | 48±10 | 110±5 | 75±15 | 150±5 | 110±15 | ||||||
| 70±5 | 50±12 | 115±5 | 80±15 |
Differential of terms: thermal protector, thermal switch, thermal protection switch, temperature switch, Thermal Cut-out, temperature controller, thermostat
The terms thermal protector, thermal switch, temperature switch, temperature controller and thermostat all refer to a mechanical device that contains a bimetallic strip sensitive to temperature and is therefore used to trigger a snap action when the temperature rises to a preset point. The snap action can cut off or put through power supply to control the protected device.
Thermal protector is the most standard term. As in most cases a thermal protector is used to protect the motor of a machine, such as vacuum cleaner, power tools, mower, washing machine, compressor, the thermal protector is often referred to as a motor thermal protector or a thermal motor protector. As the thermal protector can make or break the circuit like a usual switch, it is also called a thermal switch or temperature switch. Since they are made with the key component, a bimetallic strip, they are also called bimetal Thermal Switches. A thermostat or temperature controller is used to control the temperature within a certain range. Unlike the motor thermal protector, the thermostat and temperature is often used in a heating device. Literally, thermal protection switches are the same as thermal protectors or thermal switches.
TOPRO 17AM1 Motor Thermal Protectors are the same in quality and structure as 17AM thermal protectors made by Klixon, but much lower in price.
