Wiring and interfaces
ECOFAST Motor Starters
GWA 4NEB 950 5221-12 DS 01
2-3
Deutsc
h
En
glish
2.1
Wiring Rules
Warning
Hazardous voltages! These may cause electric shock and burns.
Disconnect the system and device from the supply before starting work.
2.1.1
Selecting the power leads
The core cross-section of the power leads must be matched to the respective
ambient conditions. The decisive factors for choosing the core cross-section are
as follows:
• set current on the device
• method of installation
• ambient temperature
• type of material (PVC, rubber)
For PVC power leads installed in a cable duct, for example, the maximum
current carrying capacity as a function of ambient temperature is as follows:
Observe the following rules when carrying out wiring:
Table 2-1: Rules for wiring
30 °C
40 °C
45 °C
50 °C
55 °C
1.5 mm
2
14 A
12.2 A
11.1 A
9.9 A
8.5 A
2.5 mm
2
19 A
16.5 A
15.0 A
13.5 A
11.6 A
4.0 mm
2
26 A
22.6 A
20.5 A
18.5 A
15.9 A
Rules for flexible cables
Data
Current carrying capacity of the plug connection as a
function of the connectable core cross-sections and
ambient temperature
T
u
=
55 °C
40 °C
1.5
mm
2
2.5 mm
2
4.0 mm
2
12 A
20 A
30 A
15 A
25 A
35 A
Permissible outer diameter of the cable
sealing insert
green
red
white
7.0 to 10.5 mm
9.0 to 13.0 mm
11.5 to 15.5 mm
Length of insulation to strip from cores
8 mm
Length of insulation to strip from cable sheath
20 mm
T
U
Ø
Summary of Contents for Ecofast 3RK1 323-2AS54-1AA0
Page 1: ...Motor Starter Manual 03 2007 ecofast Totally Integrated Automation ...
Page 2: ......
Page 12: ...ECOFAST Motor Starters viii GWA 4NEB 950 5221 12 DS 01 ...
Page 40: ...Installation of Motor Starters ECOFAST Motor Starters 3 8 GWA 4NEB 950 5221 12 DS 01 ...
Page 58: ...Device functions ECOFAST Motor Starters 6 6 GWA 4NEB 950 5221 12 DS 01 ...
Page 74: ...ECOFAST Motor Starters GWA 4NEB 950 5221 12 DS 01 ...
Page 75: ......
