Hitachi J300 Series Instruction Manual page 28

!iOTE 1: The applicable equipment is for a Hitachi stardard four pole squirrel-cage motor.
.'IOTE 2r Be sure to consider the capacity of lhe circuit bEaker to be used.
NOTE 3: Be sure to use bigger wires for power lined if the distalce exceeds 20 m.
NOTE 4: Be sure to use an grounding wire of 3.5 rnm? or more.
NOTE 5: EMI filter is required for EMC directive but others are not for this purpose.
NOTE 6: Install an earth leakage bEaker meeting requir€ments of IEC94'1 -IIEC94'1 -3 at
the inDut.
(.) Use 1.25 nm: wire for tle alarn hignal lrie.
classify the det€ctive current of lhe eaflh leakage br€aker depending on lhe total
distancer b€tween th€ invener and the motor,
Detectiv€ cunent (mA)
lm m and less 30
300 m and less
l m
6m m and less
2n
NOTE 7: When using CV wire and metal tube,
the leakage current is around 30 mA/km.
NOTE E: The leakage cunent becomes eight times
because IV wires have a high dielectric
constant. Thereforc, use an one class
larger earth leakage breaker according
to the left table.
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