| 摘要 |
An apparatus for controlling an electric installation is obtained by assembling a removable modular control device on a contactor. The lower face of this control device is provided with two rigid projecting pins located so as to be engaged and clamped in two respective control terminals of the contactor. These projecting pins are connected to two respective input terminals provided on the upper face of the control device, by an electric circuit having an elementary function.
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