Electric current switchgear

A device for switching an electric current, comprising:

• a switching block with separable contacts including at least one switching element, each switching element comprising a fixed electrical contact, a mobile electrical contact movable in translation with respect to the fixed electrical contacts between a closed position and an open position, and a linking unit integral in translation with the mobile electrical contact;
• an actuation block including an actuator and a mobile pallet coupled with the actuator;
• wherein the device for switching the electric current comprises a connection interface inserted between the switching block and the actuation block, the connection interface including a shaft and a support structure integral in translation supporting the mobile pallet, the shaft being assembled pivoting around g longitudinal axis thereof with respect to the support structure, the shaft including at least one eccentric fastener element, each eccentric fastener element delimiting an internal housing able to accommodate a head of one of the linking units, the connection interface being switchable, by rotation of the shaft around g longitudinal axis thereof, between:
• a locked state, wherein the head of each linking unit is held inside the internal housing of one of the eccentric fastener elements so as to hold the mobile pallet integral in translation with each linking unit, and
• an unlocked state, wherein the head of each linking unit can move freely in translation with respect to said eccentric fastener element so as to uncouple the mobile pallet from each linking unit.