Industrial Automation – Mouser Singapore

Busbar Systems

Altech Busbar Systems are an innovative way to jumper up to 57 poles of miniature circuit breakers (MCB), manual motor controllers (MMC), and supplementary protectors (SP). Altech Busbars provide a 30% reduction in installation time, reduced maintenance, high electrical ratings, and save panel space. The Altech Universal UL489 Busbar fits most UL489 miniature circuit breakers on the market. The Altech Universal UL1077/508 Busbar fits most supplementary protectors and manual motor controllers in the market.

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Part #

Circuit Breaker Accessories Busbar Supp w/ fixing screw

NES/5S
Altech
1: $5.17
9In Stock

Mfr. Part No.
NES/5S

Mouser Part No
845-NES5S

Altech

Circuit Breaker Accessories Busbar Supp w/ fixing screw

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9In Stock

$5.17

$4.81

$4.54

$4.41

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Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,2Phase+1/2pole,18Sqmm,

2P18U3H/14
Altech
1: $69.31
1In Stock

Mfr. Part No.
2P18U3H/14

Mouser Part No
845-2P18U3H14

Altech

Circuit Breaker Accessories Busbar,2Phase+1/2pole,18Sqmm,

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Datasheet

1In Stock

$69.31

$49.33

$49.14

$45.89

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 2 Ph Busbar 66.3mm 4P 2x2 pole, 80A

2P18U3/4
Altech
1: $40.28
2In Stock

Mfr. Part No.
2P18U3/4

Mouser Part No
845-2P18U3/4

Altech

Circuit Breaker Accessories 2 Ph Busbar 66.3mm 4P 2x2 pole, 80A

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Datasheet

2In Stock

$40.28

$28.38

$27.47

$26.45

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Min.: 1
Mult.: 1

Circuit Breaker Accessories Power Feed Lug for 1P/2P/3PUL

P35ULT
Altech
1: $18.56
1,253In Stock

Mfr. Part No.
P35ULT

Mouser Part No
845-P35ULT

Altech

Circuit Breaker Accessories Power Feed Lug for 1P/2P/3PUL

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Datasheet

1,253In Stock

$18.56

$17.92

$16.89

$16.47

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 2 Ph Busbar 204.6mm 12Pin, 115A

2P16UL3/12
Altech
1: $52.56
85In Stock

Mfr. Part No.
2P16UL3/12

Mouser Part No
845-2P16UL3/12

Altech

Circuit Breaker Accessories 2 Ph Busbar 204.6mm 12Pin, 115A

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Datasheet

85In Stock

$52.56

$44.36

$42.81

$36.98

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 2 Ph Busbar 99mm 6Pin, 115A

2P16UL3/6
Altech
1: $21.86
168In Stock

Mfr. Part No.
2P16UL3/6

Mouser Part No
845-2P16UL3/6

Altech

Circuit Breaker Accessories 2 Ph Busbar 99mm 6Pin, 115A

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Datasheet

168In Stock

$21.86

$20.89

$20.01

$19.37

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 3 Ph Busbar 310.2mm 18Pin, 115A

3P16UL3/18
Altech
1: $88.51
105In Stock
62Expected 14/12/2026

Mfr. Part No.
3P16UL3/18

Mouser Part No
845-3P16UL3/18

Altech

Circuit Breaker Accessories 3 Ph Busbar 310.2mm 18Pin, 115A

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Datasheet

105In Stock

62Expected 14/12/2026

$88.51

$80.76

$75.10

$70.19

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Mult.: 1

Circuit Breaker Accessories End Cap for 1P/2P/3PU series

18/25CAP3P
Altech
1: $0.843
283In Stock

Mfr. Part No.
18/25CAP3P

Mouser Part No
845-18/25CAP3P

Altech

Circuit Breaker Accessories End Cap for 1P/2P/3PU series

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Datasheet

283In Stock

$0.843

$0.707

$0.706

Min.: 1
Mult.: 1

Circuit Breaker Accessories 1 Ph Busbar 204.6mm 12Pin, 115A

1P16UL3/12
Altech
1: $37.50
13In Stock

Mfr. Part No.
1P16UL3/12

Mouser Part No
845-1P16UL3/12

Altech

Circuit Breaker Accessories 1 Ph Busbar 204.6mm 12Pin, 115A

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Datasheet

13In Stock

$37.50

$33.66

$33.65

$27.31

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 1 Ph Busbar 310.2mm 18Pin, 115A

1P16UL3/18
Altech
1: $57.38
1In Stock

Mfr. Part No.
1P16UL3/18

Mouser Part No
845-1P16UL3/18

Altech

Circuit Breaker Accessories 1 Ph Busbar 310.2mm 18Pin, 115A

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Datasheet

1In Stock

$57.38

$40.73

$39.39

$38.08

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 1 Ph Busbar 99mm 6Pin, 115A

1P16UL3/6
Altech
1: $23.13
51In Stock
56Expected 14/12/2026

Mfr. Part No.
1P16UL3/6

Mouser Part No
845-1P16UL3/6

Altech

Circuit Breaker Accessories 1 Ph Busbar 99mm 6Pin, 115A

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Datasheet

51In Stock

56Expected 14/12/2026

$23.13

$21.52

$20.54

$19.71

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 3Pin3x1Pole50.3mm 1 PhaseBusbar

1P18U1/3
Altech
1: $14.13
12In Stock

Mfr. Part No.
1P18U1/3

Mouser Part No
845-1P18U1/3

Altech

Circuit Breaker Accessories 3Pin3x1Pole50.3mm 1 PhaseBusbar

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Datasheet

12In Stock

$14.13

$13.26

$12.73

$10.23

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 1 Ph Busbar 68.0mm 4Pin 4x1 pole, 80A

1P18U1/4
Altech
1: $11.14
44In Stock

Mfr. Part No.
1P18U1/4

Mouser Part No
845-1P18U1/4

Altech

Circuit Breaker Accessories 1 Ph Busbar 68.0mm 4Pin 4x1 pole, 80A

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Datasheet

44In Stock

$11.14

$11.04

$10.50

$10.39

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 1 PH BUSBAR 18sqmm 57 LUGS

1P18U1/57
Altech
1: $58.44
6In Stock

Mfr. Part No.
1P18U1/57

Mouser Part No
845-1P18U1/57

Altech

Circuit Breaker Accessories 1 PH BUSBAR 18sqmm 57 LUGS

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Datasheet

6In Stock

$58.44

$54.36

$52.73

$51.30

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 1 Ph Busbar 139.0mm 8Pin 8x1 pole, 80A

1P18U1/8
Altech
1: $20.67
1In Stock

Mfr. Part No.
1P18U1/8

Mouser Part No
845-1P18U1/8

Altech

Circuit Breaker Accessories 1 Ph Busbar 139.0mm 8Pin 8x1 pole, 80A

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Datasheet

1In Stock

$20.67

$14.69

$14.33

$13.83

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Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,1 Phase,18sqmm,PIN Type

1P18U1/9
Altech
1: $15.60
1In Stock

Mfr. Part No.
1P18U1/9

Mouser Part No
845-1P18U19

Altech

Circuit Breaker Accessories Busbar,1 Phase,18sqmm,PIN Type

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Datasheet

1In Stock

$15.60

$15.04

$14.50

$13.97

$13.78

Min.: 1
Mult.: 1

Circuit Breaker Accessories 2 Ph Busbar 310.2mm 18Pin, 115A

2P16UL3/18
Altech
1: $54.67
3In Stock
113Expected 30/9/2026

Mfr. Part No.
2P16UL3/18

Mouser Part No
845-2P16UL3/18

Altech

Circuit Breaker Accessories 2 Ph Busbar 310.2mm 18Pin, 115A

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Datasheet

3In Stock

113Expected 30/9/2026

$54.67

$53.73

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 2 Ph Busbar 137.3mm 8Pin, 4x2 pole, 80A

2P18U3/8
Altech
1: $44.30
42In Stock

Mfr. Part No.
2P18U3/8

Mouser Part No
845-2P18U3/8

Altech

Circuit Breaker Accessories 2 Ph Busbar 137.3mm 8Pin, 4x2 pole, 80A

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Datasheet

42In Stock

$44.30

$41.33

$38.11

$33.35

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Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,2 Phase,18sqmm,PIN Type

2P18U3/10
Altech
1: $49.61
21In Stock

Mfr. Part No.
2P18U3/10

Mouser Part No
845-2P18U310

Altech

Circuit Breaker Accessories Busbar,2 Phase,18sqmm,PIN Type

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Datasheet

21In Stock

$49.61

$45.00

$43.45

$36.05

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 3 Ph Busbar 99mm 6Pin, 115A

3P16UL3/6
Altech
1: $27.35
4In Stock
84Expected 23/11/2026

Mfr. Part No.
3P16UL3/6

Mouser Part No
845-3P16UL3/6

Altech

Circuit Breaker Accessories 3 Ph Busbar 99mm 6Pin, 115A

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Datasheet

4In Stock

84Expected 23/11/2026

$27.35

$26.76

$26.47

$24.53

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Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar 3Phase 18sqmm PIN Type 57 lugs

3P18U3/57
Altech
1: $187.01
1In Stock

Mfr. Part No.
3P18U3/57

Mouser Part No
845-3P18U3/57

Altech

Circuit Breaker Accessories Busbar 3Phase 18sqmm PIN Type 57 lugs

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1In Stock

$187.01

$142.69

$140.27

$131.04

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Min.: 1
Mult.: 1

Circuit Breaker Accessories 3 Ph Busbar 101.8mm 6Pin, 2x3pole, 80A

3P18U3/6
Altech
1: $54.37
2In Stock

Mfr. Part No.
3P18U3/6

Mouser Part No
845-3P18U3/6

Altech

Circuit Breaker Accessories 3 Ph Busbar 101.8mm 6Pin, 2x3pole, 80A

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2In Stock

$54.37

$38.19

$36.76

$35.63

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Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,3 Ph, 57 PINS 19X3 POLE

3P25U3/57
Altech
1: $220.67
8In Stock

Mfr. Part No.
3P25U3/57

Mouser Part No
845-3P25U3/57

Altech

Circuit Breaker Accessories Busbar,3 Ph, 57 PINS 19X3 POLE

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Datasheet

8In Stock

$220.67

$185.80

$152.61

$141.90

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Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,3 Phase,25sqmm,PIN Type

3P25U3/12
Altech
1: $62.42
5In Stock

Mfr. Part No.
3P25U3/12

Mouser Part No
845-3P25U312

Altech

Circuit Breaker Accessories Busbar,3 Phase,25sqmm,PIN Type

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Datasheet

5In Stock

$62.42

$59.45

$57.64

$56.03

Quote

Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,3 Phase,25sqmm,PIN Type

3P25U3/15
Altech
1: $93.68
6In Stock

Mfr. Part No.
3P25U3/15

Mouser Part No
845-3P25U315

Altech

Circuit Breaker Accessories Busbar,3 Phase,25sqmm,PIN Type

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6In Stock

$93.68

$80.54

$67.39

$65.84

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Min.: 1
Mult.: 1

Busbar Systems

Types of Industrial Automation

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