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Description
We offer an extensive array of Thermal Overload Relays, which is an economic electromechanical protection device for the main circuit. These relays are used to provide reliable protection for motors in the event of overload or phase failure. The starter combinations are fixed together with mini contactors and block contactors. Besides, these relays are three pole relays along with bimetal tripping elements. The motor current runs through these elements and further, heats them directly and indirectly that results in bending of the bimetal elements, in case of an overload (over current). Further, this induces to a release of the relay and a change of the contacts switching position (95-96 / 97-98).
Characteristics of thermal overload relays: TF range
- Ambient air temperature - operation: -25°C -+ 60°C
- Trip class 10
- Sealable cover for operating elements
Characteristics of thermal overload relays: TA-DU range
- Ambient air temperature - operation: -25°C - + 55°C
- Special version with trip class 20 or 30
- Trip class 10A or 10
- Special versions, suitable for protection of EEX e motors
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Overload Relays
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