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  • APB devices are single-wave rectifiers with an input power supply of 100-500 Vac; it can therefore replace several rectifiers with limited input dynamics. The devices are equipped with a circuit to ensure a decisive excitation (brake opening) as, when switched on, it feeds the brake with two half-waves for a few hundred milliseconds. After this excitation time (start) the brake is powered with a half wave reducing the current absorption. Input and output are protected against overvoltage spikes.
    The container is completely renewed, of reduced dimensions and inlet-outlet are with terminal block.
    A switch can be inserted between terminals 3 and 4 to remove DC voltage from the brake, improving the de-excitation times. The circuit is housed in the container and resinated to ensure better protection.

    The value of the protection fuse (F) must be understood as a device that the customer prepares in the power supply circuit of the rectifier, as it is not present inside the rectifier itself.


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