Rating Data; Model Code; Current Ratings - Emerson CS Serie Guia Del Usuario

Safety

Rating Data

Information
2. Rating Data
2.1

Model code

Figure 2-1 Model code explanation
CS 2 4
2.2

Current ratings

AC53b utilisation code
The AC53b utilisation code defines the current rating and standard operating conditions for a bypassed soft
starter (internally bypassed, or installed with an external bypass contactor).
The soft starter's current rating determines the maximum motor size it can be used with. The soft starter's
rating depends on the number of starts per hour, the length and current level of the start, and the amount of
time the soft starter will be off (not passing current) between starts.
The soft starter's current rating is only valid when used within the conditions specified in the utilisation code.
The soft starter may have a higher or lower current rating in different operating conditions.
Figure 2-2 AC53b utilisation code
60 A : AC-53b
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the
remaining sections of the utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
Off time: The minimum allowable time between the end of one start and the beginning of the next start.
Table 2-1 Current ratings
CS1x018
CS1x042
CS1x060
CS2x085
CS3x140
CS3x170
CS3x200
6
Mechanical Electrical
Installation Installation
0 8 5
Current rating @400 Vac
≤ 060 A: AC53b 4-6-354
≥ 085 A: AC53b 4-6-594
Mains voltage
4 = 200 to 440 Vac
5 = 200 to 575 Vac
Frame size
4 - 6 : 354
Off time (seconds)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
AC53b 4-6:354
< 1000 metres
40 °C
18 A
42 A
60 A
AC53b 4-6:594
< 1000 metres
40 °C
85 A
140 A
170 A
200 A
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Programmable Diagnostics
Parameters
50 °C 40 °C
17 A 17 A
40 A 36 A
55 A 49 A
50 °C 40 °C
78 A 73 A
133 A 120 A
157 A 142 A
186 A 165 A
Technical Data Options
AC53b 4-20:340
< 1000 metres
50 °C
15 A
33 A
45 A
AC53b 4-20 580
< 1000 metres
50 °C
67 A
110 A
130 A
152 A
Digistart CS User Guide
Issue: 2