LED switch pfc power supply selection and precautions

1. The metal shell power cord and the shell are generally connected to the ground (FG), which must be reliably grounded to ensure safety, and the shell should not be connected to the zero line by mistake.

2. Before the power-on test run after installation, please check and proofread the wiring on each terminal again to ensure that the input and output, AC and DC, single-phase and multi-phase, positive and negative, voltage and current values are correct. pfc power supply, before it can be powered on.

3. For high-power LED switching pfc power supply, there are generally three or more "+" input terminals and "-" output terminals. In fact, they belong to the same output electrode, just for the convenience of user wiring, and multiple The terminals are internally and connected together.

4, in order to achieve the effect of sufficient heat dissipation, it is generally installed in a position with good air convection conditions or installed on the chassis shell to transfer heat out through the shell.

5. A resistive load is added before the LED switching power supply leaves the factory. If it needs to be used as a capacitive or inductive load, it should be explained in advance when ordering