Cross section of connection cables
Type of softstarter
PSS18/30-500 ...
PSS44/76-500
PSS50/85-500 ...
PSS72/124-500,
PSS18/30-690 ...
PSS72/124-690
PSS85/147 ...
PSS142/245
PSS175/300 ...
PSS300/515
Main circuit
Connection clamp
Solid/stranded 1 x mm
2
2.5 – 16 6 – 50 See accessories
Solid/stranded 2 x mm
2
2.5 – 16 6 – 25 See accessories
Tightening torque
(recommended)
Nm 2.6 4.5 See accessories
Connection bar
Width and thickness mm – –
Hole diameter mm – –
Tightening torque
(recommended)
Nm – –
18 28
Supply and control circuit
Connection clamp
Solid/stranded 1 x mm
2
2.5 2.5 2.5
2.5
Solid/stranded 2 x mm
2
– – –
–
Tightening torque
(recommended)
Nm 0.5 0.5 0.5 0.5
24 Softstarters | 1SFC132005C0201, rev.F
PSS – The flexible range
Technical data
Fuse ratings and power losses
Recommended
ABB Overload protection
Max power loss
at rated I
e
For
Softstarter
Current
range
without
by-pass
2)
with external
by-pass
Max fuse rating - main circuit
1) 3)
Power
requirements
of supply
Bussmann Fuses, DIN43 620 (Knife)
Type Type A W W A Type size VA
PSS18/30 TF42DU 7.6 - 18 65 13.5 50 170M1564 000 9
PSS30/52 TF42DU 7.6 - 30 100 14.6 80 170M1566 000 9
PSS37/64 TF42DU 7.6 - 37 120 17.5 125 170M1568 000 9
PSS44/76 TA75DU 18 - 44 142 17.5 160 170M1569 000 9
PSS50/85 TA75DU 18 - 50 160 20.5 160 170M1569 000 10
PSS60/105 TA75DU 18 - 60 190 22 200 170M1570 000 10
PSS72/124 TA75DU 18 - 72 226 30.5 250 170M1571 000 10
PSS85/147 TA110DU 65 - 85 291 56.5 315 170M1572 000 36
PSS105/181 TA110DU 65 - 105 351 61 400 170M3819 1* 36
PSS142/245 TA200DU 66 - 142 462 63 450 170M5809 2 36
PSS175/300 TA200DU 66 - 175 590 117 500 170M5810 2 65
PSS250/430 TA450DU 130 - 250 815 117 700 170M5813 2 65
PSS300/515 TA450DU 130 - 300 965 140 900 170M6813 3 65
1)
For the supply circuit 6 A delayed, for MCB use C characteristics.
2)
Calculated power loss at operational current (Iop) without by-pass.
Ptot = 3 x Iop + VA value
Example: PSS 60/105 running at 52A
Ptot = 3 x 52 + 10 = 166W
3)
Max fuse rating independent if In-Line or Inside Delta connection. In Inside Delta connections of PSS, the fuses can be placed outside of the delta.