A control and/or switch cabinet for a machine at least partially operated by electric power, for example a packaging machine, said control and/or switch cabinet comprising • a frame, • a front side and a back side, • two front doors (108, 110), a primary and a secondary door, the left of which is hinged to the frame on its left side, while the right front door is hinged to the frame on its right side, having respective front door panels (108a, 110a) for opening or closing a front opening of the frame allowing access to an interior space of the cabinet, • at least one back door (112, 114) on its back side, • a main switch device including • a main switch unit transferable between a power on position in which electric power is supplied to the machine and a power off position in which the machine is cut off from electric power, • a manually operable main switch operating unit operatively connected to the main switch unit for transferring the main switch unit between the power on position and the power off position, said main switch operating unit being located at the front side of the control and/or switch cabinet, and being mounted on the front door panel of the primary door of the two front doors, • an exclusively mechanically operating front door safety ensuring unit allowing opening the two front doors (108, 110) only if the main switch unit is in its power off position and allowing transferring the main switch unit to its power on position only if the two front doors (108, 110) are closed, and • an exclusively mechanically operating back door safety ensuring unit, allowing the at least one back door (112, 114) to be opened only if the two front doors (108, 110) have been opened before, said back door safety ensuring unit comprising a front rod allocated to and interacting with the secondary front door of the two front doors (108, 110) and a back rod allocated to and interacting with the at least one back door (112, 114), said front rod and said back rod each being transferable between a respective front door open position and a respective front door closed position, said front rod and said back rod being transferable together between their front door open positions and their front door closed positions, e.g. by being connected via a connecting rod articulated to both rods, the front rod and the back rod. characterized in that the front door safety ensuring unit comprises an engagement counter-element cooperating with said main switch operating unit, fixedly mounted to the secondary front door, said secondary front door having at least one projection, e.g. formed by a strip, protruding from an edge facing towards a corresponding edge of the primary door and, in a closed state of both front doors (108, 110), engaging behind said corresponding edge of the primary door, and that the front rod and the back rod are axially displaceably mounted to the frame by guiding elements. • a frame, • a front side and a back side, • two front doors (108, 110), a primary and a secondary door, the left of which is hinged to the frame on its left side, while the right front door is hinged to the frame on its right side, having respective front door panels (108a, 110a) for opening or closing a front opening of the frame allowing access to an interior space of the cabinet, • at least one back door (112, 114) on its back side, • a main switch device including • a main switch unit transferable between a power on position in which electric power is supplied to the machine and a power off position in which the machine is cut off from electric power, • a manually operable main switch operating unit operatively connected to the main switch unit for transferring the main switch unit between the power on position and the power off position, said main switch operating unit being located at the front side of the control and/or switch cabinet, and being mounted on the front door panel of the primary door of the two front doors, • a main switch unit transferable between a power on position in which electric power is supplied to the machine and a power off position in which the machine is cut off from electric power, • a manually operable main switch operating unit operatively connected to the main switch unit for transferring the main switch unit between the power on position and the power off position, said main switch operating unit being located at the front side of the control and/or switch cabinet, and being mounted on the front door panel of the primary door of the two front doors, • an exclusively mechanically operating front door safety ensuring unit allowing opening the two front doors (108, 110) only if the main switch unit is in its power off position and allowing transferring the main switch unit to its power on position only if the two front doors (108, 110) are closed, and • an exclusively mechanically operating back door safety ensuring unit, allowing the at least one back door (112, 114) to be opened only if the two front doors (108, 110) have been opened before, said back door safety ensuring unit comprising a front rod allocated to and interacting with the secondary front door of the two front doors (108, 110) and a back rod allocated to and interacting with the at least one back door (112, 114), said front rod and said back rod each being transferable between a respective front door open position and a respective front door closed position, said front rod and said back rod being transferable together between their front door open positions and their front door closed positions, e.g. by being connected via a connecting rod articulated to both rods, the front rod and the back rod.