2 Motor starters
2.2 Motor starter without safety function (DO, RO)
10
EMS2… Electronic motor starter
10/19 MN034003EN
www.eaton.com
2.2 Motor starter without safety function (DO, RO)
The devices described in this Section must not be operated in potentially
explosive Ex e increased safety (ATEX)
areas
.
Table 2: DO (DOL starter) and RO (reversing starter) versions
Notes
Type
Minimum
current
Rated operational current I
e
Control voltage U
S
Terminals
AC51
EN 60947-4-3
AC53a
EN 60947-4-2
24
V
DC
11
5
V
AC -
23
0
V
AC
Pus
h
-In
Screws
DOL starters
EMS2-DO-T-2.4-24VDC
0.18
A
2.4 A
2.4 A
✓
–
✓
–
EMS2-DO-T-9-24VDC
1.5 A
9 A
6.5 A
✓
–
✓
–
EMS2-DO-Z-2,4-24VDC
0.18 A
2.4 A
2.4 A
✓
–
–
✓
EMS2-DO-Z-9-24VDC
1.5 A
9 A
6.5 A
✓
–
–
✓
EMS2-DO-Z-2,4-230VAC
0.18 A
2.4 A
2.4 A
–
✓
–
✓
EMS2-DO-Z-9-230VAC
1.5 A
9 A
6.5 A
–
✓
–
✓
Reversing starters
EMS2-RO-T-2,4-24VDC
0.18 A
2.4 A
2.4 A
✓
✓
–
EMS2-RO-T-9-24VDC
1.5 A
9 A
6.5 A
✓
–
✓
–
EMS2-RO-Z-2,4-24VDC
0.18 A
2.4 A
2.4 A
✓
–
–
✓
EMS2-RO-Z-9-24VDC
1.5 A
9 A
6.5 A
✓
–
–
✓
EMS2-RO-Z-2,4-230VAC
0.18 A
2.4 A
2.4 A
–
✓
–
✓
EMS2-RO-Z-9-230VAC
1.5 A
9 A
6.5 A
–
✓
–
✓
→
Note that the permissible continuous current for devices with a
rated operational current I
e
of 9 A depends on the type of
mounting and the ambient temperature,
→
Currents under the minimum current specified in table 2 will not
be detected by the motor protection. The motor must not be
operated under this value.
The motor starter itself also works if the current is under this
minimum value. This state is displayed by the flashing of both
LEDs
PWR
and
ERR
. The relay output also signals an alarm.