Abstract: An activation device with a start button and an emergency stop button for an electric appliance such as a circuit breaker equipped with a start control device and a stop control device with alternating movements. Also included is a disengageable transmission device, preferably consisting of a toggle lever acted upon by a safety lever capable of detecting the position of the emergency stop button, is placed between the start button 14 and the start device specific to the circuit breaker. This arrangement prevents the circuit breaker from being started by forcing the start button even though the emergency stop button has been pressed and is locked in the stop position.

Abstract: An emergency stop button actuated by pushing and unlocked by rotation. A lug 16 provided on the skirt 12 of the head 11 of the button works with a sliding plate 20 which can block the head when it is pulled and put into the interlocked position. The sliding plate has, for this purpose, an abutment face 25 for the lug and a window 24 to allow the lug to pass when it is rotated in order to unlock the emergency stop button.

Abstract: Mounting for the fixing of equipment comprising a base plate equipped with means of hooking and ratching on flanges.The mounting includes two parallel uprights whose facing surfaces are connected by a series of T-shaped cross-pieces, fixed in openings in said uprights, in accordance with specific rules of spacing.

Abstract: Associable coupling connector for each of the storage relays of a sequential automatic device.The coupling connector comprises on the one hand the pins placed at the back of sockets which are assembled in three different areas of the front face, allotted respectively to the relay, to the input signals and to the output signals and, on the other hand, transversal conductors and transversal terminals to receive and transmit the voltage from the supply and the return to zero signal and respectively to transmit the sequential signals from the coupling connectors to the next ones.