GeneralFJ6/JHD-1 series terminal block for measuring box reaches the requirements of safe protection, gracefulness, convenienct connection,stable installation, etc.,It is suitable for the circuit of rated voltage 660V, frequency 50Hz or 60Hz, and connection conductor section at inlet terminal up to 2.5~50(70) mm2 and outlet terminal up to 0.75~16mm2. It employs direct crimping way by self-elevating screw clip that forms a self-locking structure between clip and screw, This structure enables terminal block not to loose under a shock.