| 摘要 |
<P>PROBLEM TO BE SOLVED: To prolong the service life of components weak in heat, to facilitate the insertion of a control center unit into a control center box body, and to lessen the effects of induction noises caused by a big current flowing in a main circuit. <P>SOLUTION: The control center unit has a main circuit equipment such as a circuit breaker 18 for wiring, an electromagnetic contactor 35, a current transformer 11, or the like; and a control equipment such as an auxiliary relay 34, a delay releasing unit, or the like. These equipments are set and the circuit is constituted of wires and conductors in a box formed of a pair of side plates 32, 33, a bottom plate 37, and a rear face plate 31. The rear face plate 31 is arranged in a middle position instead of the rear-most position in the depth direction as seen from the operation face of the control center, and no side plate is provided in a space at the back of the rear face plate 31. <P>COPYRIGHT: (C)2008,JPO&INPIT |
