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Chapter 4 Main Circuit Terminals | IED-S
Frame E
R/L1, S/L2, T/L3, U/T1, V/T2, W/T3, +1(DC+),
Model
Max.
Wire
Gauge
IED370S43A
IED450S43A
150 mm²
[300 MCM]
IED550S43A
IED750S43A
NOTE
1. Select copper wires with rated voltage of 600 V and
temperature resistance of 75°C or 90°C for wiring.
2. For UL installation compliance, use copper wires when
installing. The wire gauge is based on a temperature
resistance of 75 °C, in accordance with UL requirements
and recommendations. Do not reduce the wire gauge when
using high-temperature resistant wires.
3. Use specified ring lug for terminal wiring. See Figure 1 and
Figure 2 for ring lug specifications. For other types of
wiring, use the wires that comply with local regulations.
4. After crimping the wire to the ring lug (must be UL and CSA
approved R/C (YDPU2)), then install heat shrink tubing
rated at a minimum of 600 V
(see Figure 2).
Frame E
Main circuit terminals:
-(DC-)
Min.
Wire
Tightening
Gauge
36 mm² [2 AWG]
200 kg-cm
50 mm² [1/0 AWG]
95 mm² [3/0 AWG]
(19.6 Nm)
120 mm² [250 AWG]
insulation over the live part
AC
Screw
Size and
Max. Wire
Gauge
Torque
(±10%)
M8
150 mm²
(173
[300 MCM]
lb-in.)
Figure 1
4-6
Ground terminal:
Min.
Size and
Wire
Tightening
Gauge
(±10%)
25 mm² [4 AWG]
25 mm² [4 AWG]
200 kg-cm
(173 lb-in.)
50 mm² [1/0 AWG]
(19.6 Nm)
95 mm² [3/0 AWG]
Figure 2
Screw
Torque
M8
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