4
Connecting Cables
•
Connect cables in accordance with the local installation laws and regulations.
•
To prevent poor cable connection due to overstress, leave enough slack before connecting the
cables to the appropriate ports.
4.1
Preparations
•
S and S
are the conductor cross-sectional areas of AC power cables and PE cables respectively.
p
•
The cable diameter must comply with local cable standards.
•
The factors that affect cable selection include the rated current, cable type, routing mode,
ambient temperature, and maximum expected line loss.
3-pin Model (125KTL) Cable Description
No. Cable
[1]
1
PE cable
Tracking system
2
power cable
AC output
power cable
(multi-core)
3
AC output
power cable
[2]
(single-core)
DC input power
4
cable
RS485
5
communications
cable
Note [1]: The value of S
same material. If the materials are different, ensure that the conductor of the PE cable with a
proper cross-sectional area produces a conductance equivalent to that of the cable specified in the
table. The specifications of the PE cable are subject to this table or calculated according to IEC
60364-5-54.
Note [2]: For some models, the outer diameter of a single-core cable ranges from 14 mm to 36 mm
based on the label in the maintenance compartment.
Type
Outdoor cable and M10 OT/DT
terminals
Three-core outdoor copper cable
with dual-layer protection
• If you connect a ground cable to
the ground point on the chassis
shell, you are advised to use a
three-core (L1, L2, and L3) outdoor
cable and M12 OT/DT terminals
(L1, L2, and L3).
• If you connect a ground cable to
the ground point in the
maintenance compartment, you do
not need to prepare a PE cable but
are advised to use a four-core (L1,
L2, L3, and PE) outdoor cable, M12
OT/DT terminals (L1, L2, and L3),
and M10 OT/DT terminals (PE).
You are advised to use a single-core
outdoor cable and M12 OT/DT
terminals.
PV cable that meets the 1100 V
standard
Outdoor shielded twisted pair that
meets the local standard
is valid only if the conductors of the PE cable and AC power cable use the
p
Conductor Cross-
Sectional Area
S
≥ S/2
p
2
10 mm
• Copper cable
− S: 70–240 mm
− S
≥ S/2
p
• Aluminum alloy
cable or copper-
clad aluminum
cable:
− S: 95–240 mm
− S
≥ S/2
p
• Copper cable
− S: 70–240 mm
• Aluminum alloy
cable or copper-
clad aluminum
cable:
− S: 95–240 mm
2
4–6 mm
0.25–1 mm
6
Outer Diameter
N/A
15–18 mm
2
24–66 mm
2
2
14–32 mm
2
5.5–9 mm
• One or two
communications
cables: 4–11
2
mm
• Three
communications
cables: 4–8 mm