| 摘要 |
PROBLEM TO BE SOLVED: To provide a terminal block of an electronic apparatus improved to also cope with the changing of display of terminal symbols according to the terminal specification each of the three-phase/single-phase systems, and the function of wrong wiring prevention, by combining a simple attachment with a terminal block, such as the main circuit terminal block of a general purpose inverter.SOLUTION: When a main circuit terminal block 3 is constituted, as a common component, according to the terminal specification of a three-phase series inverter, and the same main circuit terminal block 3 is used while mounting on an inverter of single-phase series, a terminal symbol display plate 10 for single-phase is attached to the front of the main circuit terminal block 3. A terminal symbol 7 corresponding to the terminal specification of single-phase series, and a blank part 10a indicating an "idle terminal" are assigned and displayed on the terminal symbol display plate 10, and a terminal cover 10b closing the "idle terminal" of the terminal block is formed continuously to and integrally with the blank part 10a. |
