Mitsubishi Electric offers a wide selection of power fuses of diverse characteristics, to satisfy almost any application within the practical range of such interrupting devices.  The principal types of Mitsubishi power fuses are :

       Non-dropout refill expulsion power fuses (Type BA).
       Dropout expulsion power fuses (Type DBA).
       Current-limiting non-vented power fuses for backup (Types CL, PL, BAL, and CLS).

These different types have been developed to meet widely differing application requirements.  Because of the limitations of their individual design features, no single type can cover the full range of system voltage, load current, and fault current.  Nevertheless, the areas of applicability overlap to a considerable extent, and in these areas, space and service requirements and economic considerations govern the selection.

Fuses are selected on the basis of breaking capacity, continuous current ratings, and melting characteristics.  The melting characteristics are described chiefly by the minimum melting current and by the slope of the melting time-current curve.  Detailed information on this characteristic will be given on request.

The characteristics of these fuses conform to IEC282-1 or -2. In addition, Types BA and DBA satisfy the test conditions specified in ANSI C37.46.

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