60 / 582
BETA Protecting
Miniature Circuit Breakers
Busbars
1/38
Siemens ET B1 · 10/2008
1
*
You can order this quantity or a multiple thereof.
5
ST3 6 busbars, 16 mm
2
,
for MCB, fixed lengths,
cannot be cut, fully insulated
Three-phase
For 2 MCB 3P
1
102.5
A
5
ST3 643
027 1
10 0.058
For 3 MCB 3P
157.5
A
5
ST3 644
027 1
10 0.083
For 4 MCB 3P
210
}
5
ST3 645
027 1
10 0.110
Three-phase,
for MCB with AS or FC
For 2 MCB 3P
1
+1+1.5 115
A
5
ST3 646
027 1
10 0.060
For 4 MCB 3P
237
A
5
ST3 647
027 1
10 0.120
For 6 MCB 1P
1.5
156
A
5
ST3 648
027 1
10 0.061
For 9 MCB 1P
245
A
5
ST3 650
027 1
10 0.093
5
ST3 6 busbars, 16 mm
2
,
for MCB, fixed lengths,
cannot be cut, fully insulated
Four-phase
For 2 MCB 4P or 3P+N
1
A
5
ST3 651
027 1
10 0.080
For 3 MCB 4P or 3P+N
A
5
ST3 652
027 1
10 0.116
For 6 MCB 2P or 1P+N
A
5
ST3 653
027 1
10 0.116
Three-phase,
For 1 RCCB 4P N right
and 8 MCB 1P
1
210
A
5
ST3 654
027 1
10 0.114
For 1 RCCB 4P N left
and 8 MCB 1P
1
210
A
5
ST3 668
027 1
10 0.099
Touch protection for free terminals
Yellow, RAL 1004
A
5
ST3 655
027 1
10 0.003
Range
10
mm
2
20
× 5ST3 613 + 10 × 5ST3 614 +
50
× 5ST3 615 + 50 × 5ST3 655
A
5
ST3 656
027 1
set
1
set
5.490
16
mm
2
20
× 5ST3 643 + 10 × 5ST3 644 +
50
× 5ST3 645 + 50 × 5ST3 655
A
5
ST3 657
027 1
set
1
set
7.640
5
ST3 7 busbar systems, 10 mm
2
12
MW, for MCB,
can be cut, with end caps
Single-phase, angled
For 12 MCB 1P
1
214
A
5
ST3 730
027 1
1
0.040
For 9 MCB 1P with AS or FC 1.5
A
5
ST3 732
027 1
1
0.040
Two-phase
For 6 MCB 2P
1
A
5
ST3 734
027 1
1
0.060
For 4 MCB 2P with AS or FC 1+1.5
A
5
ST3 736
027 1
1
0.060
Three-phase
For 4 MCB 3P
1
}
5
ST3 738
027 1
1
0.100
for 3 MCB 3P with AS or FC 1+1+1.5
A
5
ST3 741
027 1
1
0.100
For 3 MCB 1P with AS or FC 1.5
A
5
ST3 743
027 1
1
0.100
Four-phase
For 3 MCB 4P or 3P+N
1
A
5
ST3 745
027 1
1
0.150
5
ST3 7 busbar systems, 10 mm
2
56
MW, for MCB,
can be cut, without end caps
Single-phase, angled
For MCB 1P
1
1016
A
5
ST3 731
027 1
1
0.190
For MCB 1P with AS or FC
1.5
A
5
ST3 733
027 1
1
0.190
Two-phase
For MCB 2P
1
A
5
ST3 735
027 1
1
0.290
For MCB 2P with AS or FC
1.5
A
5
ST3 737
027 1
1
0.290
Three-phase
For MCB 3P
1
A
5
ST3 740
027 1
1
0.430
For MCB 3P with AS or FC
1
+1+1.5
A
5
ST3 742
027 1
1
0.430
For MCB 1P with AS or FC
1.5
A
5
ST3 744
027 1
1
0.430
Four-phase
For MCB 4P or 3P+N
1
A
5
ST3 746
027 1
1
0.700
Pin
spacing
Length DT Order No.
Price
per PU
PG PU PS*/
P. unit
Weight
per PU
approx.
MW mm
Unit(s) Unit(s) kg
© Siemens AG 2008