Altech Busbar Systems
The Altech Busbar system is an innovative
way to jumper up to 57 poles of Altech
Miniature Circuit Breakers (MCB)/ Manual
Motor Controllers (MMC).
Without Busbar
The advantages of this jumper system are:
• Installation time savings
• Panel space savings
• Less or no maintenance
• High electrical ratings
• Customers can cut the busbar
without losing the UL approval
With Busbar
Tw o Po wer Feed Methods
START/ END Feed Method
CENTER/ MIDDLE Feed Method
Rated current per phase
Rated current per power feed block
L1
80A
L2
80A
L3
80A
L1
2
18mm : 160A
25mm : 100A
100A
100A
25mm : 200A
2
18mm :
2
L1
L2
2
L2
160A
L3
160A
200A
200A
L3
80/100A
80/100A
80/100A
80/100A
80/100A
80/100A
L1
80/100A
80/100A
L2
80/100A
L3
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
34
Accessories
Power Feed Devices
Power Feed Lug
Application examples:
Power Feed Block*
UL508 listed
UL File 205412
Easy connection of the power supply wires to
the busbar/MCB. Power Feed Devices
ensures permanent connection.
UL508 listed
UL File 205412
Type Designation
T
—
(d)
DIN Rail Clip
16 mm
(0.63 in.)
43.5 mm
(1.71 in.)
Power Feed lug/block
50mm2 or 95mm2 cross-section area
USA and Canadian design basics
T-Terminal connection
B-Busbar connection
31.6 mm
(1.24 in.)
11 mm
(0.43 in.)
35.6 mm
(1.40 in.)
31.6 mm
(1.24 in.)
35.6 mm
B (1.40 in.)
A
63 mm
(2.48 in.)
6.8 mm (0.27 in.)
Type/Cat. No.
Electrical Ratings
Terminal Site Acceptability
Recommended/Required Torque
Material of Lug
Insulation Material
For use with
3 mm (0.12 in.)
P50UT
115A/480VAC
10-1 AWG
4.5Nm (40lb. in.)
MS58 Brass
Zytel FR 72G25-V Plastic
18 and 25mm2 1-3 phase Busbar
63 mm
(2.48 in.)
59 mm (2.32 in.)
(a) =
(b) =
(c) =
(d) =
U
—
(c)
28.5 mm
(1.12 in.)
21 mm
(0.83 in.)
P 50
— —
(c) (b)
88.5 mm
(3.48 in.)
A
B
P95UB
200A/480VAC
1-4/0 AWG
19.5Nm (175lb. in.)
MS58 Brass
Zytel FR 72G25-V Plastic
18 and 25mm2 3 phase Busbar
Assembly Instructions
P50UT
P95UB
The power feed lugs (Cat. # P50UT) fit together with the lugs of
the busbar in the terminals of the MCB/MA.
Miscellaneous Accessories
Type/Cat. No:
For use with:
End Caps
18/25CAP3P
18/25mm2 2&3 phase Busbar
Insulation Caps
BRS5
18/25mm2 1-3 phase Busbar
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
35
BUSBAR ORDERING
INFORMATION
1 PHASE
UL508 listed
UL File 205412
For choosing the proper busbar, please
consider the following specifications:
1. Number of phases
56 x 17.8 = 996.8 mm (39.24 in.)
17.8 mm (0.70 in.)
3.5 mm (0.14 in.)
2. Number of devices / MMCs
2 mm (0.79 in.)
3. Number of poles/number of pins
❶
15 mm (0.59 in.)
15 mm (0.59 in.)
4. Sum of out going device currents
1007 mm (39.65 in.)
Type/Cat. No. Designation:
3
P
— —
(a) (b)
25
—
(c)
U
—
(d)
3
—
(e)
H
—
(f)
/
—
(g)
(a) = Number of transverse copper strips
inserted. (Can be 1, 2 or 3 for
1, 2 or 3 phases)
(b) = Pin version
(c) = 18mm2 or 25mm2 cross-section area
(d) = USA and Canadian design basics
(e) = 1 or 3 track insulation
(f) = Blank - No Spacing
H-Auxiliary Switch (1/2 pole)
spacing
(g) = Total number of pins
18mm2
Type/Cat. No.
No. of
Pins ❷
No. of MMC
to Jumper
Length/
mm
1P18U1/2
1P18U1/4
1P18U1/8
1P18U1/12
1P18U1/24
1P18U1/36
1P18U1/48
1P18U1/57
2
4
8
12
24
36
48
57
2x1 pole
4x1 pole
8x1 pole
12x1 pole
24x1 pole
36x1 pole
48x1 pole
57x1 pole
32
68
144
208
420
638
852
1009
1 PHASE
UL508 listed
UL File 205412
Technical Specifications:
36 x 27 = 972 mm (38.27 in.)
• Material of Busbar: E-Cu58 F25 Copper
• Insulation Track Material:
27 mm (1.06 in.)
2 mm (0.79 in.)
4mm (0.16 in.)
Bergamid B700 Plastic (+130°C)
• Electrical Ratings:
15 mm (0.59 in.)
15 mm (0.59 in.)
18mm2: 80A/480VAC
25mm2: 100A/480VAC
• Manufactured according to VDE 0660
Part 100 and 502, VDE 0606, VDE 0659
982 mm (38.66 in.)
With Auxiliary Switch (1/2 pole) Spacing ❸
NOTES:
❶ Do not exceed the busbars rated current.
❷ For additional pin configurations,
please consult Altech.
18mm2
Type/Cat. No.
No. of
Pins ❷
No. of MMC
to Jumper
Length/
mm
1P18U1H/2
1P18U1H/4
1P18U1H/8
1P18U1H/12
1P18U1H/18
1P18U1H/24
1P18U1H/30
1P18U1H/37
2
4
8
12
18
24
30
37
2x1 pole
4x1 pole
8x1 pole
12x1 pole
18x1 pole
24x1 pole
30x1 pole
37x1 pole
48
102
206
314
472
640
804
982
❸ For one pole spacing busbars, please consult Altech.
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
36
2 PHASE
3 PHASE
L2
L1
Copper strips
Insulation Track
End Cap
L2
56 x 17.75 = 994 mm (39.13 in.)
17.75 mm
(0.70 in.)
7 mm
(0.28 in.)
37 mm
(1.46 in.)
7 mm
(0.28 in.)
2 mm (.079 in.)
L3
21 mm
(0.83 in.)
End Cap
L2
L1
Copper strips
Insulation Track
End Cap
L3
L1
L2
2 mm (.079 in.)
37 mm
(1.46 in.)
55 x 17.75 = 976 mm (38.43 in.)
17.75 mm
(0.70 in.)
UL508 listed
UL File 205412
13 mm (.51 in.)
13 mm (.51 in.)
UL508 listed
UL File 205412
End Cap
21 mm
(0.83 in.)
L1
1009 mm (39.72 in.)
991 mm (39.02 in.)
18mm2
Type/Cat. No.
25mm2
Type/Cat. No.
No. of
Pins ❷
No. of MMC
to Jumper
Length/
mm
18mm2
Type/Cat. No.
25mm2
Type/Cat. No.
No. of
Pins ❷
No. of MMC
to Jumper
Length/
mm
2P18U3/4
2P18U3/8
2P18U3/12
2P18U3/18
2P18U3/24
2P18U3/36
2P18U3/48
2P18U3/56
2P25U3/4
2P25U3/8
2P25U3/12
2P25U3/18
2P25U3/24
2P25U3/36
2P25U3/48
2P25U3/56
4
8
12
18
24
36
48
56
2x2 pole
4x2 pole
6x2 pole
9x2 pole
12x2 pole
18x2 pole
24x2 pole
28x2 pole
65
137
208
315
421
635
849
991
3P18U3/6
3P18U3/9
3P18U3/12
3P18U3/18
3P18U3/24
3P18U3/36
3P18U3/48
3P18U3/57
3P25U3/6
3P25U3/9
3P25U3/12
3P25U3/18
3P25U3/24
3P25U3/36
3P25U3/48
3P25U3/57
6
9
12
18
24
36
48
57
2x3 pole
3x3 pole
4x3 pole
6x3 pole
8x3 pole
12x3 pole
16x3 pole
19x3 pole
101
154
208
315
421
635
849
1009
2 PHASE
3 PHASE
UL508 listed
UL File 205412
13 mm (.51 in.)
15 x 62.3 = 934.5 mm
13 mm (.51 in.)
62.3 mm (2.45 in.)
2 mm (.079 in.)
7 mm (0.28)
17.8 mm
(0.70 in.)
2 mm (.079 in.)
37 mm
(1.46 in.)
37 mm
(1.46 in.)
7 mm (0.28 in.)
22 x 44.5 = 979 mm (38.54 in.)
44.5 mm (1.75 in.)
17.8 mm (0.70 in.)
UL508 listed
UL File 205412
21 mm
(0.83 in.)
21 mm
(0.83 in.)
1009 mm (39.72 in.)
982 mm (38.66 in.)
With Auxiliary Switch (1/2 pole) Spacing
❸
With Auxiliary Switch (1/2 pole) Spacing ❸
18mm2
Type/Cat. No.
25mm2
Type/Cat. No.
No. of
Pins ❷
No. of MMC
to Jumper
Length/
mm
18mm2
Type/Cat. No.
25mm2
Type/Cat. No.
No. of
Pins ❷
No. of MMC
to Jumper
Length/
mm
2P18U3H/4
2P18U3H/8
2P18U3H/12
2P18U3H/18
2P18U3H/24
2P18U3H/36
2P18U3H/46
2P25U3H/4
2P25U3H/8
2P25U3H/12
2P25U3H/18
2P25U3H/24
2P25U3H/36
2P25U3H/46
4
8
12
18
24
36
46
2x2 pole
4x2 pole
6x2 pole
9x2 pole
12x2 pole
18x2 pole
23x2 pole
74
164
253
386
520
787
1009
3P18U3H/6
3P18U3H/9
3P18U3H/12
3P18U3H/18
3P18U3H/24
3P18U3H/36
3P18U3H/48
3P25U3H/6
3P25U3H/9
3P25U3H/12
3P25U3H/18
3P25U3H/24
3P25U3H/36
3P25U3H/48
6
9
12
18
24
36
48
2x3 pole
3x3 pole
4x3 pole
6x3 pole
8x3 pole
12x3 pole
16x3 pole
110
172
235
359
484
733
982
❸ For one pole spacing busbars, please consult Altech.
❸ For one pole spacing busbars, please consult Altech.
Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com
37