 | | Area of Application | The thermo switch O is used whenever switch-on function is needed, caused by overheating or increasing temperature. Specific applicati*** include: cooling fan, alarm signal, controller, timer. |
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| Function | The thermo switch O operates not current sensitive. Temperature detection is realized by a bimetal snapdisk. When the switch-on temperatureTEis reached, the bimetal disk will snap over to close a contact system. After cooling down and reaching the cut-off temperatureTA, the bimetal disk will automatically return to its initial position and open the contacts again. |
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Data sheet |
 | | Field of Application | | The thermal overload protector type BM-1 is an electromechanical safety device, which provides complete protection to your electrical equipments against over-heating and over-loading and mechanical malfuncti***. After temperature cooling down the thermo switch closes it's contacts again (auto reset function). |
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| Typical Applicati*** | To protect household equipment, electrical motors, transformers, electrical ballast, etc. |
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data sheet |
 | | Field of application | 1. The thermal motor protector TM1 is an electro-mechanical safety device, which provides complete protection to your electrical equipments against overheating and overloading and mechanical malfuncti***. The contacts close again automatically, as the device cools down. 2. Because of the very ***all size and high compressive strength it specially can be used for direct fitting in coils of motors and transformers. 3. The thermal motor protector TM1 is single pole and operates independent from any current supply. Contact configuration has two modes: normally closed (NC) or normally open (NO). |
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| Applicati*** | | Motor for fan and air conditioner, motor of washer, motor of oil and ***oke pumping, transformers, ballast of fluorescent light, electromagneti*** and microw***e stove, etc. |
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Data sheet | | Data sheet Mounting bracket 506005 | | Data sheet Mounting bracket 506000-506003 | | Data sheet U-clip 506100 | | Data sheet U-clip 506101 | | Holding resistor-table |
 | | Area of Application | The temperature limiter Q is used wherever, on the one hand, protection against overtemperatures is required, and, on the other hand, automatic cut-in of the device to be protected - subsequent to a follow-on cooling down period - is undesirable or not permissible. |
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| Function | | The temperature limiter Q operates independent from any current supply. Temperature detection is effected by means of a bimetal disk which was first dimensioned in accordance with the required cut-off temperature. When this fixed cut-off temperatureTAis reached, this bimetal disk will snap over, breaking a contact system and thereby interrupting the electric circuit of the device to be protected. In order to prevent any automatic cut-in of the circuit when the switch cools down again, the switch is equipped with an electric latch/self-holding device. |
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| Self-holding Function: | | By means of a resistor heat is generated by the supply voltage applied after breaking the contact. This heat prevents any decrease in temperature below the value necessary for the cut-in temperatureTE. In this was, the switch will keep its contact open, irrespective of its ambient temperature. To close the contacts of the switch, and thus closing the current circuit, will be possible only after disconnection from the power supply . |
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Data sheet | | Data sheet Mounting bracket 506005 | | Data sheet Mounting bracket 506000-506003 | | Data sheet U-clip 506100 | | Data sheet U-clip 506101 | | Trigger resistor table |
 | | Area of Application | | The current and temperature limiter Y is used wherever, on one hand, protection against overtemperatures as well as against overcurrents is required, and on the other hand, automatic switch on function of the device to be protected - subsequent to a follow-on cooling down period - is prohibited or undesired. |
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| Function | | The current and temperature limiter Y operates current sensitiv. Temperature detection is realized by bimetal disk which was first dimensioned in accordance with the required cut-off temperature. When this fixed cut-off temperatureTAis reached, this bimetal disk will snap , breaking a contact system and thereby interrupting the electric circuit of the device to be protected. |
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| Current sensitivity | | In the case of an ***ious current increase (blocking current or short-circuit current) a resistor, lying in series with the contact system inside the limiter, heats the bimetal disk to its cut-off temperatureTAvery quickly. When this cut-off temperatureTAis reached, the bimetal disk will snaps suddenly and breaks the contacts of the switch. To get an optimal adjustment in accordance to the application there are wide range of resistor values are ***ailable . |
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| Self-holding function | | By means of a resistor heat is generated by the supply voltage applied after breaking the contact. This heat prevents any decrease in temperature below the value necessary for the cut-in temperatureTE. In this was, the switch will keep its contact open, irrespective of its ambient temperature. Cut-in of the switch, and thus closing the circuit, will be possible only after disconnection from the supply voltage. |
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Data sheet |
 | | | | By means of a resistor heat is generated by the supply voltage applied after breaking the contact. This heat prevents any decrease in temperature below the value necessary for the cut-in temperature TE. In this was, the switch will keep its contact open, irrespective of its ambient temperature. Cut-in of the switch, and thus closing the circuit, will be possible only after disconnection from the supply voltage. |
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 | | | | Thermo switches only react when external thermal heating affects them. The thermal coupling to the source of heat is effected by means of a bimetal disk lying directly below the metallic covering cap. |
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 | | | | Due to ***all size, high reliability, independence of location and the fact that it is totally maintenance-free, a thermo switch is the ideal instrument for perfect thermal protection. |
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| Types of Contacts/Contact Types | - KO - break contact which will automatically return into its original position.
- KS - make contact which will automatically return into its original position.
- KB - limiter with mechanical latch/self-holding
- SB - break contact with electric latch/self-holding
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