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SMS-start
Type of
SMS-start
Rated current for light load
Application for LIFTS - INTERMITTENT duty (*)
Rated current for heavy load
INDUSTRIAL application - CONTINUOUS duty
Maximum starting current
Maximum instantaneous current
Ramp maximun time: for acceleration (ACC) and Deceleration (DEC)
Ambient temperature 0 ÷ 50°C . Degree of protection IP20
(*)Duty is considered intermittent where the motor drive starts for a duration below or equal to 60" each 120".
SMS-start
is designed to be able to carry out an increased number of starts per hour, even in
critical conditions.The maximum number of starts per hour depends on the acceleration duration,
as shown in the Table below:
The Table shows the maximum number of starts per hour which can be obtained at an ambient
temperature of 50°C and at starting currents equal to the maximum current supported by the
device. At lower temperatures and currents, the number of starts per hour may be increased.
In order to protect the power component (SCR) and to avoid dangerous conditions in the event of
a short circuit, you are advised to install, upstream of the power line (L1-L2-L3), 3 fuses with an
I²t the the one is supported by the SCR.
The fuses shown in the Table ensure Type 2 protection.
Type of
SMS-start
SSV040
SSV070
The electrical connections to the
with the isolations and maximum temperatures allowed by the cables.
The Table shows the minimum cross sections, where H07V-K type cables are used.
Power terminals L1-L2-L3-U-V-W
Command terminals 1-2-3-4-5
10
TECNICAL FEATURES
NUMBER OF STARTS/HOUR
Acceleration time
1 sec
2 sec
3 sec
4 sec
5 sec
PROTECTION FUSES
I²t SCR @ 45°C
2120
6810
CONNECTIONS
SMS-start
MAX No. Starts/Hour
75 starts/h
40 starts/h
25 starts/h
18 starts/h
15 starts/h
Type
ITALWEBER
ITALWEBER
CH14 50A aR
1461050
CH22 80A aR
1462080
device must be carried out in accordance
SSV040
10mm²
1mm²
SSV040
SSV070
40A
70A
25A
40A
120A
210A
180A
270A
7 sec
3 sec
n.a for 70A
n.a for 70A
Code
I²t Fuse
1800
6600
SSV070
16mm²
1mm²
REV 4.1 Printed 09/2018
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