An intrinsically safe connection unit with a network interface for intrinsically safe appliances in explosion-risk areas, having: a housing, a voltage supply connection on the housing, the voltage supply connection being in the form of a central feed connection with separate supply cores (13A, 13B, 13C) for each of a plurality of plug connections (11A, 11B, 11C), the plurality of electrically conductive plug connections (11A, 11B) of the same type, provided as network interface connections for connection of a transmission cable for an intrinsically safe appliance to the connection unit, wherein the plug connections (11A, 11B) are each preceded by a separate decoupling circuit, and each plug connection having at least two plug contacts for data communication and at least two plug contacts, which are connected to the associated supply cores, for supplying power to the connectable appliances via the transmission cable, the decoupling circuits being connected upstream of the plurality of plug connections and being arranged in the housing, each decoupling circuit having a circuit stage on the plug connection side and a circuit stage on the electronics side, providing DC voltage decoupling for the circuit stage on the plug connection side, wherein the circuit stage on the electronics side has a resistance network for radio-frequency power limiting, and the circuit stage on the plug side has a capacitor network for direct-current power decoupling from other plug connections of the same type, and electronics connected upstream of the decoupling circuits, which are associated on the input side with a power limiting circuit, by means of which the current supplied with the power supply and the applied voltage are limited to a predeterminable input current and a predeterminable input voltage for the electronics. a housing, a voltage supply connection on the housing, the voltage supply connection being in the form of a central feed connection with separate supply cores (13A, 13B, 13C) for each of a plurality of plug connections (11A, 11B, 11C), the plurality of electrically conductive plug connections (11A, 11B) of the same type, provided as network interface connections for connection of a transmission cable for an intrinsically safe appliance to the connection unit, wherein the plug connections (11A, 11B) are each preceded by a separate decoupling circuit, and each plug connection having at least two plug contacts for data communication and at least two plug contacts, which are connected to the associated supply cores, for supplying power to the connectable appliances via the transmission cable, the decoupling circuits being connected upstream of the plurality of plug connections and being arranged in the housing, each decoupling circuit having a circuit stage on the plug connection side and a circuit stage on the electronics side, providing DC voltage decoupling for the circuit stage on the plug connection side, wherein the circuit stage on the electronics side has a resistance network for radio-frequency power limiting, and the circuit stage on the plug side has a capacitor network for direct-current power decoupling from other plug connections of the same type, and electronics connected upstream of the decoupling circuits, which are associated on the input side with a power limiting circuit, by means of which the current supplied with the power supply and the applied voltage are limited to a predeterminable input current and a predeterminable input voltage for the electronics.