Figure 2-3: Rating Labels Of M42/36/28U - Delta M42U Operation And Installation Manual

Figure 2-3 below, shows the rating labels of M42U/M36U/M28U series, and
following in Table 2-2, there are definitions of the various symbols found on the
labels. Figure 2-4 ~ Figure 2-6 illustrate the differences in the appearance
between the various models.
MxxU DC terminal block is used / DC SW, AC SW, Fuse, String current monitor included.
_120
MxxU DC terminal block is used / AC SW included, but no DC SW, no Fuse, no String current monitor
_121
MxxU MC4 connector is used / DC SW, AC SW, Fuse, String current monitor included.
_122
Refer to table below for all models

Figure 2-3: Rating labels of M42/36/28U

17
Introduction