Bidirectional contactor C303

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The C303 bi-directional DC contactors are compact, high-performance switchgear for applications with high making currents or large capacities. All versions can carry up to 350 amps continuously; in the event of a short circuit, significantly higher currents can flow without the contacts welding together. This means that the contactor retains its full function to disconnect high loads – up to 1.5 MW – regardless of the current direction. This full bi-directionality is important for systems with a charging and discharging process. Typical applications are DC circuits in inverters, in battery storage systems or in charging stations in the e-mobility sector. Features - Compact dimensions – High rated insulation voltage Ui up to 1,500 volts - High continuous thermal current Ith up to 500 amps - 3 versions available for different applications - Full bidirectionality – reliable disconnection of high performances - Auxiliary switch with mirror contact function Applications The compact switching device can be integrated especially in areas where there is no space for larger series. Since the C303 series can reliably switch in both directions of current, it is ideally suited for applications with energy recovery. Here, the C303 reliably ensures the galvanic isolation of both poles of the battery from the vehicle’s powertrain in the event of a fault.