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    Masterpact and PowerPact: What do the neutral protection (blue dial) settings mean?

    Product Line:
    Masterpact NW and NT and PowerPact L, P and R frames

    4 or 8 pole with neutral protection
    Reference 48049-137-05 page 16, table 8 and figure 9.

    Dial settings
    4P 3D = Off
    3P N/2 = N/2
    4P 4D = N
    — Off—Neutral protection is turned off.

    — N/2—Neutral conductor capacity is onehalf
    that of the line conductors.

    — N—Neutral conductor capacity is the
    same as that of the line conductors.

    — 1.6N—Neutral conductor capacity is 1.6
    times that of the line conductors. (Threepole
    circuit breaker only.)

    Reference 48049-137-05 page 16, table 8 and figure 9.

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