Installation 3, 3 input wire size requirements – Lenze SCF frequency inverter User Manual
Page 17
Lenze 13466146 EDBSF01 v24 EN
17
Installation 3
NOTE
• Applicable national and local electrical codes take precedence over
recommendations in these tables.
• Use UL Class CC fast-acting, current limiting type fuses. Select fuses with low I
2
T values, rated at 200,000 AIC. Recommended fuses are Bussman KTK-R, JJN, and
JJS. Similar fuses with equivalent ratings by other manufacturers may also be
acceptable.
WARNING!
This product can cause a DC current in the protective conductor. Where a residual
current device (RCD) is used for protection in case of direct or indirect contact, only
an RCD of Type B is allowed on the supply side of this product. Otherwise, another
protective measure shall be applied, such as separation from the environment by
double or reinforced insulation, or isolation from the supply system by a transformer.
Observe the following when using RCDs:
1.
Only install the RCD between the supply mains and drive controller.
2.
The RCD can be activated by:
-
capacitive leakage currents between the cable screens during operation
(especially with long, screened motor cables)
-
connecting several drives to the mains at the same time
-
additional RFI filters
3.2.3 Input Wire Size Requirements
WIRE SIZE REQUIREMENTS
208/240 Vac, 1 phase
208/240 Vac, 3 phase
400/480 Vac, 3 phase
480/590 Vac, 3 phase
MODEL AWG mm
2
MODEL AWG mm
2
MODEL AWG mm
2
MODEL AWG mm
2
SF203Y
14
2.5
SF203Y
14
2.5
SF205Y
14
2.5
SF205Y
14
2.5
SF405
14
2.5
SF210Y
12
4.0
SF210(Y)
14
2.5
SF410
14
2.5
SF510
14
2.5
SF215Y
12
4.0
SF215(Y)
14
2.5
SF415
14
2.5
SF220Y
10
6.0
SF220(Y)
12
4.0
SF420
14
2.5
SF520
14
2.5
SF230Y
10
6.0
SF230(Y)
10
6.0
SF430
14
2.5
SF530
14
2.5
SF250Y
8
6.0
SF250(Y)
10
10
SF450
14
2.5
SF550
14
2.5
SF275
10
10
SF475
12
4.0
SF575
14
2.5
SF2100
8
10
SF4100
10
6.0
SF5100
12
4.0
SF2150
6
16
SF4150
8
10
SF5150
10
6.0
SF2200
4
25
SF4200
8
10
SF5200
8
10
SF4250
6
16
SF5250
8
10
SF4300
6
16