1SFC132005C0201, rev.F | Softstarters 39
PST(B) – The advanced range
Overview
PST175 ... PST300 PSTB370 ... PSTB470 PSTB570 ... PSTB1050
Softstarter. Type
Normal start
In-Line connected
PST175 PST210 PST250 PST300 PSTB370 PSTB470 PSTB570 PSTB720 PSTB840 PSTB1050
(400 V) kW 90 110 132 160 200 250 315 400 450 560
IEC, Max. A 175 210 250 300 370 470 570 720 840 1050
(440-480 V) hp 125 150 200 250 300 400 500 600 700 900
UL, Max FLA 156 192 248 302 361 480 590 720 840 1062
400 V, 40 ºC
Using MCCB only, type 1
coordination will be achieved.
MCCB (50kA), type
T4S250 T5S400 T5S630 T6S630 T6S800 T7S1250 T7S1600
To achieve a type 2 coordina-
tion, semi-conductor fuses
must be used.
Fuse protection (65kA), Semiconductor fuses, Bussmann, type
170M5810 170M5812 170M5813 170M6813 170M5813 170M6813 170M8554 170M6018 170M6020
2)
Suitable switch fuse for re-
commended semi-conductor
fuses.
Switch fuse, type
OS400D03P
OS630D03P OS400D03P OS630D03P
OS800D03P
1)
The line contactor is not
required for the softstarter
itself but often used to
open if OL trips
Line contactor, type
A185 A210 A260 A300 AF400 AF580 AF750 AF1350 AF1650
Overload protection is used
to protect the motor from
over heating
Electronic overload relay, type
Built-in
The by-pass contactor will
reduce the power loss of the
softstarter. All softstarters
can be operated without
by-pass
By-pass contactor, type
A145 A210 Built-in
1) Switch fuse not available. Use Bussmann fuse base 170H3004
2) PSTB1050-690-70 has 170M6019
Quick guide for selection
Normal start Class 10 Heavy duty start class 30
Ordering - see page 40 - 41 Ordering - see page 42 - 43
Typical applications
• Bow thruster • Centrifugal pump • Centrifugal fan • Conveyor belt (long)
• Compressor • Conveyor belt (short) • Crusher • Mill
• Elevator • Escalator • Mixer • Stirrer
If more than 10 starts/h
!
Select one size larger than the standard selection
How to select correct size
By using the guide here, you can quickly
select a suitable softstarter for the most
common applications.
If a more precise selection is required,
you can use the softstarter selection tool
available at www.abb.com/lowvoltage
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