Description

3UA thermal relay is suitable for using in power system with AC *0Hz, rated operation voltage up to **0V and ***0V, in main circuit, current from 0.1A to **0A. It is used to protect AC three-phase asynchronous motor against overload and open-phase. The current setting value can be regulated and the setting current values of many thermal elements are intercrossing overleaping arrangement, for easy selecting by the customers from **5 to **5 air temperarature as the products have temperature compensating. The relays have the test push-button for breaking NC contacts, the operating indication and free trip characteristics. The items conform to IEC****1, IEC****1 LR*-D series thermal overload relay is suitable for thermal protection in the circuit with AC *0 or *0Hz, voltage up to **0V, motor power up to *5KW or less. It has different attachment and temperature compensating function. It can be fixed onto contactor and can also be fixed independently. The product is made in accordance with IEC ******5. LR*-D thermal relay can be used in the circuit of *0Hz or *0Hz, rated insulation voltage **0V, rated current 0.***3A for protecting the phase break when the electric motor is overload. The relay has different mechanism and temperature compensation & can be plugged in LC*-D series AC contactor. At present, it is the most advanced thermal relay in the world. Characteristic A. Fundamental parameter of the main circuit (a). Rated insulation voltage **0V. (b). Rated working current *5, *6, *3A separately. (c). The regulator seal of rated setting current and setting. (d). Current of the Thermal component (see list 1) B. Auxiliary Circuit (a). There are one pair of N/O and N/C contact with electric insulation (b). Rated insulation Voltage **0V (c). Rated frequency ****0Hz (d). Use group, rated working voltage, appoint thermal current and rated current.