2 Motor starter – overview
2.4 Mounting
EMS2…-SWD Electronic motor starter
10/19 MN120008EN
www.eaton.com
15
2.4 Mounting
EMS2-…-SWD motor starters are mounted on a 35-mm-top-hat rail.
Figure 7: Mounting on top-hat rail
Notes
2.5 Layout of devices with I
e
= 9 A
When using devices with a rated operational current I
e
of 9 A, note that the
permissible thermal continuous current I
L
depends on the type of mounting
and the ambient temperature. Refer to the diagram (
Moreover, the maximum permissible current of 56 A must not be exceeded,
even in startup.
Figure 8: Thermal continuous current I
L
according to the ambient temperature T
A
a
When mounting the devices with a minimum distance of 20 mm
b
With directly linked devices
￫
Note that the direct linking of devices with a rated operational
current I
e
of 9 A can lead to a reduction in performance (derat-
ing) under some circumstances (
￫
EMS2-XBR-T-… (
section 9.1, “Three-phase current connec-
tor”, page 57) three-phase current connectors can be used to
connect the supply terminals 1L1, 3L2 and 5L3 of up to five
devices in a row.
T
A
[°C]
0
10
20
30
40
50 55
6
8
0
4
2
9
7
5
3
1
I
L
[A]
①
②
①
I
e
= 3 A
I
e
= 9 A
