Circuit Breaker Accessories

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 483

Applied Filters:

Series

Product

Type

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

2P18U3H/14
Altech
1: 220,46 RON
1In Stock

Mfr. Part No.
2P18U3H/14

Mouser Part No
845-2P18U3H14

Altech

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

Learn More

Datasheet

1In Stock

220,46 RON

156,89 RON

156,79 RON

145,32 RON

View

Min.: 1
Mult.: 1

Busbar

Circuit Breaker Accessories Busbar,3 Phase+1/2pole,25sqmm,

3P25U3H/12
Altech
1: 270,82 RON
1In Stock

Mfr. Part No.
3P25U3H/12

Mouser Part No
845-3P25U3H12

Altech

Circuit Breaker Accessories Busbar,3 Phase+1/2pole,25sqmm,

Learn More

Datasheet

1In Stock

270,82 RON

189,68 RON

179,32 RON

166,69 RON

View

Min.: 1
Mult.: 1

3 Phase Busbar

Busbar

3 Phase Busbar

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

3P25U3/57
Altech
1: 515,63 RON
15In Stock

Mfr. Part No.
3P25U3/57

Mouser Part No
845-3P25U3/57

Altech

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

Learn More

Datasheet

15In Stock

515,63 RON

417,04 RON

Min.: 1
Mult.: 1

508

Busbar

3 Phase Busbar

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

P35ULT
Altech
1: 59,05 RON
307In Stock Restricted Availability

Mfr. Part No.
P35ULT

Mouser Part No
845-P35ULT

Altech

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

Learn More

Datasheet

307In Stock

59,05 RON

58,15 RON

57,95 RON

56,99 RON

View

Min.: 1
Mult.: 1

Restricted Availability

489

End Feed Device

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

P50UT
Altech
1: 33,25 RON
353In Stock Restricted Availability

Mfr. Part No.
P50UT

Mouser Part No
845-P50UT

Altech

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

Learn More

Datasheet

353In Stock

33,25 RON

33,15 RON

32,80 RON

31,34 RON

View

Min.: 1
Mult.: 1

Restricted Availability

508

Start/End Feed Device

Circuit Breaker Accessories 3 Ph Busbar 204.6mm 12Pin, 115A

3P16UL3/12
Altech
1: 183,09 RON
108In Stock Restricted Availability

Mfr. Part No.
3P16UL3/12

Mouser Part No
845-3P16UL3/12

Altech

Circuit Breaker Accessories 3 Ph Busbar 204.6mm 12Pin, 115A

Learn More

Datasheet

108In Stock

183,09 RON

155,83 RON

153,42 RON

136,26 RON

View

Min.: 1
Mult.: 1

Restricted Availability

489

Busbar

3 Phase Busbar

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

3P16UL3/18
Altech
1: 218,86 RON
184In Stock Restricted Availability

Mfr. Part No.
3P16UL3/18

Mouser Part No
845-3P16UL3/18

Altech

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

Learn More

Datasheet

184In Stock

218,86 RON

217,40 RON

199,04 RON

196,67 RON

Min.: 1
Mult.: 1

Restricted Availability

489

Busbar

3 Phase Busbar

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

18/25CAP3P
Altech
1: 2,25 RON
193In Stock

Mfr. Part No.
18/25CAP3P

Mouser Part No
845-18/25CAP3P

Altech

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

Learn More

Datasheet

193In Stock

2,25 RON

Min.: 1
Mult.: 1

508

End Cap

3 Phase Busbar

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

1P16UL3/12
Altech
1: 118,21 RON
26In Stock Restricted Availability

Mfr. Part No.
1P16UL3/12

Mouser Part No
845-1P16UL3/12

Altech

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

Learn More

Datasheet

26In Stock

118,21 RON

107,09 RON

106,99 RON

84,20 RON

View

Min.: 1
Mult.: 1

Restricted Availability

489

Busbar

1 Phase Busbar

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

1P16UL3/6
Altech
1: 65,74 RON
3In Stock Restricted Availability
30Expected 6/4/2026

Mfr. Part No.
1P16UL3/6

Mouser Part No
845-1P16UL3/6

Altech

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

Learn More

Datasheet

3In Stock

30Expected 6/4/2026

65,74 RON

65,34 RON

54,47 RON

53,37 RON

View

Min.: 1
Mult.: 1

Restricted Availability

489

Busbar

1 Phase Busbar

Circuit Breaker Accessories 1 Ph Busbar 210.0mm 12Pin 12x1 pole, 80A

1P18U1/12
Altech
1: 79,52 RON
5In Stock

Mfr. Part No.
1P18U1/12

Mouser Part No
845-1P18U1/12

Altech

Circuit Breaker Accessories 1 Ph Busbar 210.0mm 12Pin 12x1 pole, 80A

Learn More

Datasheet

5In Stock

79,52 RON

71,17 RON

58,15 RON

54,73 RON

View

Min.: 1
Mult.: 1

508

Busbar

1 Phase Busbar

Circuit Breaker Accessories 3Pin3x1Pole50.3mm 1 PhaseBusbar

1P18U1/3
Altech
1: 32,54 RON
14In Stock

Mfr. Part No.
1P18U1/3

Mouser Part No
845-1P18U1/3

Altech

Circuit Breaker Accessories 3Pin3x1Pole50.3mm 1 PhaseBusbar

Learn More

Datasheet

14In Stock

32,54 RON

31,89 RON

30,38 RON

28,72 RON

View

Min.: 1
Mult.: 1

Busbar

1 Phase Busbar

Circuit Breaker Accessories 1 PH BUSBAR 18sqmm 57 LUGS

1P18U1/57
Altech
1: 240,89 RON
3In Stock

Mfr. Part No.
1P18U1/57

Mouser Part No
845-1P18U1/57

Altech

Circuit Breaker Accessories 1 PH BUSBAR 18sqmm 57 LUGS

Learn More

Datasheet

3In Stock

240,89 RON

185,86 RON

161,31 RON

155,98 RON

View

Min.: 1
Mult.: 1

508

Busbar

1 Phase Busbar

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

2P16UL3/12
Altech
1: 153,47 RON
11In Stock Restricted Availability

Mfr. Part No.
2P16UL3/12

Mouser Part No
845-2P16UL3/12

Altech

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

Learn More

Datasheet

11In Stock

153,47 RON

141,09 RON

136,06 RON

117,60 RON

View

Min.: 1
Mult.: 1

Restricted Availability

489

Busbar

2 Phase Busbar

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

2P16UL3/6
Altech
1: 69,51 RON
41In Stock Restricted Availability

Mfr. Part No.
2P16UL3/6

Mouser Part No
845-2P16UL3/6

Altech

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

Learn More

Datasheet

41In Stock

69,51 RON

64,74 RON

61,67 RON

View

Min.: 1
Mult.: 1

Restricted Availability

489

Busbar

2 Phase Busbar

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

2P18U3/4
Altech
1: 90,29 RON
6In 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

Learn More

Datasheet

6In Stock

90,29 RON

85,11 RON

81,59 RON

78,97 RON

View

Min.: 1
Mult.: 1

508

Busbar

2 Phase Busbar

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

2P18U3/8
Altech
1: 135,56 RON
39In 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

Learn More

Datasheet

39In Stock

135,56 RON

130,43 RON

119,06 RON

108,40 RON

View

Min.: 1
Mult.: 1

508

Busbar

2 Phase Busbar

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

2P18U3/10
Altech
1: 169,81 RON
23In Stock

Mfr. Part No.
2P18U3/10

Mouser Part No
845-2P18U310

Altech

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

Learn More

Datasheet

23In Stock

169,81 RON

143,15 RON

138,22 RON

116,04 RON

View

Min.: 1
Mult.: 1

Busbar

2 Phase Busbar

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

2P18U3/16
Altech
1: 148,13 RON
2In Stock

Mfr. Part No.
2P18U3/16

Mouser Part No
845-2P18U316

Altech

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

Learn More

Datasheet

2In Stock

148,13 RON

143,86 RON

140,79 RON

134,85 RON

View

Min.: 1
Mult.: 1

Busbar

2 Phase Busbar

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

3P16UL3/6
Altech
1: 105,98 RON
40In Stock Restricted Availability
40Expected 2/26/2026

Mfr. Part No.
3P16UL3/6

Mouser Part No
845-3P16UL3/6

Altech

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

Learn More

Datasheet

40In Stock

40Expected 2/26/2026

105,98 RON

103,32 RON

88,13 RON

82,89 RON

View

Min.: 1
Mult.: 1

Restricted Availability

489

Busbar

3 Phase Busbar

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

3P25U3/12
Altech
1: 198,53 RON
6In Stock

Mfr. Part No.
3P25U3/12

Mouser Part No
845-3P25U312

Altech

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

Learn More

Datasheet

6In Stock

198,53 RON

192,00 RON

187,72 RON

183,65 RON

Quote

Min.: 1
Mult.: 1

Busbar

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

3P25U3/9
Altech
1: 249,89 RON
4In Stock

Mfr. Part No.
3P25U3/9

Mouser Part No
845-3P25U39

Altech

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

Learn More

4In Stock

249,89 RON

218,55 RON

169,26 RON

157,84 RON

View

Min.: 1
Mult.: 1

Busbar

3 Phase Busbar

Circuit Breaker Accessories Insul Cap 3 pr strip for 1P/2P/3PUL

BRUL
Altech
1: 8,55 RON
144In Stock

Mfr. Part No.
BRUL

Mouser Part No
845-BRUL

Altech

Circuit Breaker Accessories Insul Cap 3 pr strip for 1P/2P/3PUL

Learn More

Datasheet

144In Stock

8,55 RON

8,50 RON

8,05 RON

7,80 RON

View

Min.: 1
Mult.: 1

489

Cap

Insulation Cap

Circuit Breaker Accessories BUS BAR SUPPT W/SCRW

NES
Altech
1: 8,40 RON
44In Stock

Mfr. Part No.
NES

Mouser Part No
845-NES

Altech

Circuit Breaker Accessories BUS BAR SUPPT W/SCRW

Learn More

Datasheet

44In Stock

8,40 RON

8,20 RON

7,90 RON

3,03 RON

View

Min.: 1
Mult.: 1

Busbar

Plastic Support with Fixing Screw

Circuit Breaker Accessories MODULAR DIR PWR FEED FOR 1-3 PH BUSBAR

P50UB
Altech
1: 37,12 RON
92In Stock Restricted Availability

Mfr. Part No.
P50UB

Mouser Part No
845-P50UB

Altech

Circuit Breaker Accessories MODULAR DIR PWR FEED FOR 1-3 PH BUSBAR

Learn More

Datasheet

92In Stock

37,12 RON

37,02 RON

36,87 RON

36,67 RON

View

Min.: 1
Mult.: 1

Restricted Availability

508

Start/End Feed Device

Busbar Systems

Customer Service Office

Company

Resources

Support