ABB PSTX210 - 15 Short Circuit Current Rating; Fuse and Breaker Selection Guide

Softstarters Type PSTX30...PSTX570 User Manual short form 1SFC132059M9901 255
Fuse
Standard Fault Current, Fuse Class
High Fault Current,
Fuse Clas
Soft-starter
Type 208 V 220-240V 440-480V 550-600 V
Fuse
rating
550-600
V
Fuse
rating
PSTX30 Iq: 5kA
Class RK5
Iq: 5kA
Class RK5
Iq: 5kA
Class RK5
Iq: 5kA
Class RK5
60A Iq: 100kA
Class J
60A
PSTX37 70A 70A
PSTX45 90A 90A
PSTX60 125A 125A
PSTX72 Iq: 10kA
Class RK5
150A 150A
PSTX85 Iq: 10kA
Class RK5
175A 175A
PSTX105 225A 225A
PSTX142 Iq: 10kA
Class RK5
Iq: 10kA
Class RK5
250A 250A
PSTX170 Iq: 10kA
Class RK5
Iq: 10kA
Class RK5
350A 350A
PSTX210 400A 400A
PSTX250 Iq: 18kA
Class RK5
500A 500A
PSTX300
Iq: 18kA
Class RK5
600A 600A
PSTX470
PSTX570
Iq: 30kA
Class L
Iq: 30kA
Class L
Iq: 30kA
Class L
Iq: 30kA
Class L
1200A
Iq: 100kA
Class L
1200A
Breaker
High Fault
Current
Normal breaker
High Fault
Current
Standard breaker
Soft-starter
Type
440-
480V
550-
600V
440-
480V
550-
600V
PSTX30 Iq:
25kA
Iq:
18kA
T4N250PR221DS-LS/I In100 Iq:
35kA
Iq:
25kA
T4S250PR221DS-LS/I In100
PSTX37 T4N250PR221DS-LS/I In100 T4S250PR221DS-LS/I In100
PSTX45 T4N250PR221DS-LS/I In100 T4S250PR221DS-LS/I In100
PSTX60 T4N250PR221DS-LS/I In100 T4S250PR221DS-LS/I In100
PSTX72 T4N250PR221DS-LS/I In150 T4S250PR221DS-LS/I In150
PSTX85 T4N250PR221DS-LS/I In150 T4S250PR221DS-LS/I In150
PSTX105 T4N250PR221DS-LS/I In250 T4S250PR221DS-LS/I In250
PSTX142 T4N250PR221DS-LS/I In250 T4S250PR221DS-LS/I In250
PSTX170 T5N400PR221DS-LS/I In300 T5S400PR221DS-LS/I In300
PSTX210 T5N400PR221DS-LS/I In300 T5S400PR221DS-LS/I In300
PSTX250 T5N400PR221DS-LS/I In400 T5S400PR221DS-LS/I In400
PSTX300 T5N600PR221DS-LS/I In600 T5S600PR221DS-LS/I In600
PSTX370 T6N800PR221DS-LS/I In600 T6S800PR221DS-LS/I In600
PSTX470/
PSTX570
50 25
T7S1200PR231DS-LS/I In1200
15
Table 8.1 Short circuit current rating