1) UKJ series blocks takes screw frame connection structure, can be used in the circuit that below 50Hz (60Hz), rated voltage is AC 660V or DC440V, to connect round copper conductor which rated cross-section is 0.75 square millimeter- 150 square millimeter, without treatment or with ferrules

2) UKJ-W series terminal blocks is new products of UPUN, it takes a new plug-in jumpers to achieve quick connection

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