122 - Delta M88 Series Operation And Installation Manual

3.3.2 Required Protective Devices and AC Cabling
Installation for M88H
It is recommended to install an upstream circuit breaker between AC side and
inverter side for over current protection.
Please follow the following steps for assembling the AC terminal (M88H
• It is important to choose the proper size for AC cable.
• Strip off all wires for 24 mm.
• The cross-sectional area for each internal cable is 2~2/0 AWG.
Conductor cross-section:
2~2/0 AWG (35 ~ 70mm²)
Figure 3-13 : Stripping cables for M88H
Figure 3-14: AC Gland with multiple inlet (M88H
Sizes of Cables (mm)
D1
D2
D3
D4
Model
M88H
L1
L2
L3
N
PE
Stripping length: 24 ~26mm
D1 D2 D3
Table 3-2: Cable size comparison table (M88H
43.5∼51.3
34.8∼43.5
27.2∼34.8
23.9∼27.2

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Upstream circuit breaker
≧150A
AC terminal
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D4
Torque (N •m)
8.5∼11
8.5∼11
8.5∼11
8.5∼11
27
Installation
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outer
jacket
P
)
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)
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Dimension of P (mm)
1∼4
1∼5
1∼3.5
1∼3.5
) :