• Siemens SENTRON 8US 60 mm busbar system supports and copper profiles
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Siemens SENTRON 8US 60 mm busbar system supports and copper profiles

Siemens SENTRON 8US 60 mm busbar system supports and copper profiles

Basic assemblies for the Siemens 8US 60 mm busbar system up to 1600 A: busbar supports, flat copper and TT special profiles, covers and connecting pieces, plus supports for 40 mm spacing.

Key features

  • 60 mm center-to-center spacing, up to 630 A with flat copper and 1600 A with TT special profile
  • End and intermediate supports 1P to 4P for interior and exterior mounting
  • Flat copper profiles 12 × 5 to 30 × 10 mm, bare or tin-coated, EN 12167
  • Cover profiles, blanking covers, end covers and closed partitions for touch protection
  • Busbar supports for 40 mm center-to-center spacing (3P and 5P)

Specifications

Brand Siemens
Product line SENTRON 8US busbar systems
Rated operational voltage 690 V AC (IEC), 600 V AC (UL 508)
Busbar spacing 60 mm (40 mm supports also listed)
Standards IEC 61439-1, UL 508 (per type)
Source Siemens Catalog LV 10 · 2026, p. 910-935
8US1923-3AA01 Component: Busbar support | Version: Support 3P L1-L3, interior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
8US1923-3UA01 Component: Busbar support | Version: Support 3P L1-L3, interior | Rating: IEC/UL 508 (w/ base plate) | Size: 12/20 × 5, 20/30 × 10 mm
8US1923-4AA00 Component: Busbar support | Version: Support 4P L1-L3 + PE/N, interior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
5SH3540 Component: Busbar support | Version: N/PE support 1P, interior | Rating: IEC 61439-1 | Size: 12/20/30 × 5, 20/30 × 10 mm
8US1923-1AA01 Component: Busbar support | Version: N/PE support 1P, interior | Rating: IEC 61439-1, UL 508 | Size: 12-30 × 5, 20/30 × 10 mm
8US1923-2AA01 Component: Busbar support | Version: Support 3P L1-L3, exterior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
8US1923-5AA00 Component: Busbar support | Version: Support 2P L1/L2/L3/PE/N, exterior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
8WC5031-1AA00 Component: Flat copper profile EN 12167 | Version: Bare, 1100 mm | Rating: 400 A, 125 mm² | Size: 25 × 5 mm
8WC5033-1AA00 Component: Flat copper profile EN 12167 | Version: Bare, 1100 mm | Rating: 447 A, 150 mm² | Size: 30 × 5 mm
8WC5123 Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 200 A, 60 mm² | Size: 12 × 5 mm
8WC5121 Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 250 A, 75 mm² | Size: 15 × 5 mm
8WC5126 Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 320 A, 100 mm² | Size: 20 × 5 mm
8WC5131 Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 400 A, 125 mm² | Size: 25 × 5 mm
8WC5133 Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 447 A, 150 mm² | Size: 30 × 5 mm
8WC5128 Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 520 A, 200 mm² | Size: 20 × 10 mm
8WC5134 Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 630 A, 300 mm² | Size: 30 × 10 mm
8WC5051 Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 200 A, 60 mm² | Size: 12 × 5 mm
8WC5052 Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 250 A, 75 mm² | Size: 15 × 5 mm
8WC5053 Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 320 A, 100 mm² | Size: 20 × 5 mm
8WC5054 Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 400 A, 125 mm² | Size: 25 × 5 mm
8WC5055 Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 447 A, 150 mm² | Size: 30 × 5 mm
8WC5063 Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 520 A, 200 mm² | Size: 20 × 10 mm
8WC5065 Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 630 A, 300 mm² | Size: 30 × 10 mm
8US1922-1AC00 Component: End cover | Version: L1-L3, for 8US1923-2AA01/3AA01/3UA01 | Rating: IEC, UL 508
8US1922-1AB00 Component: End cover | Version: L1-L3 + PE/N, for 8US1923-4AA00 | Rating: IEC
8US1922-2EB00 Component: Blanking cover | Version: 700 × 195 × 63 mm
8US1922-2EA00 Component: Support for blanking covers | Version: Depth 32 mm
8US1922-2EA01 Component: Support for blanking covers | Version: Depth 107 mm
8US1922-2UA01 Component: Base plate | Version: 3-pole system, 1100 × 240 mm | Rating: UL 508
8US1921-2BE00 Component: Connecting piece for Cu profiles | Version: Length 40 mm | Size: 20-30 × 5, 20-30 × 10 mm
8US1921-2BF00 Component: Connecting piece for Cu profiles | Version: Length 55 mm | Size: 12-20 × 5, 12-20 × 10 mm
8US1943-3AA00 Component: Busbar support 3P for TT profile | Version: Interior, L1-L3, finger-safe covers | Rating: 1600 A IEC / 1400 A UL | Size: TT special profile | Pack: 2 supports
8US1948-2AA00 Component: TT special copper profile | Version: Tin-coated, 2400 mm, 720 mm² | Rating: 1600 A, 690 V AC | Size: 2400 × 30 × 40 mm
8US1922-2DA00 Component: Cover profile for TT profile | Version: Length 1000 mm | Size: TT special profile
8US1941-2BF01 Component: Connecting piece for TT profile | Size: TT special profile
8US1922-1JA00 Component: Partition, closed | Version: 2400 mm, depth 76 mm
8US1903-3AB00 Component: Busbar support 40 mm spacing | Version: 3P L1-L3, with inlays/covers | Rating: 690 V AC, IEC | Size: 12/15 × 5, 12/15 × 10 mm | Pack: 2 supports
8US1903-5AA00 Component: Busbar support 40 mm spacing | Version: 5P L1-L3 + N + PE/N | Rating: 690 V AC, IEC | Size: 12 × 5, 12 × 10 mm
Busbar SystemsSiemens
38 product codes available in this family
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Siemens SENTRON 8US 60 mm busbar system supports and copper profiles

Brand Siemens·Busbar Systems

Available part numbers (38)

8US1923-3AA01, 8US1923-3UA01, 8US1923-4AA00, 5SH3540, 8US1923-1AA01, 8US1923-2AA01, 8US1923-5AA00, 8WC5031-1AA00, 8WC5033-1AA00, 8WC5123 + 28 more — see full table ↓

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Product codes & specifications
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RFQ List (0)
Product codeSpec
8US1923-3AA01Component: Busbar support | Version: Support 3P L1-L3, interior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
8US1923-3UA01Component: Busbar support | Version: Support 3P L1-L3, interior | Rating: IEC/UL 508 (w/ base plate) | Size: 12/20 × 5, 20/30 × 10 mm
8US1923-4AA00Component: Busbar support | Version: Support 4P L1-L3 + PE/N, interior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
5SH3540Component: Busbar support | Version: N/PE support 1P, interior | Rating: IEC 61439-1 | Size: 12/20/30 × 5, 20/30 × 10 mm
8US1923-1AA01Component: Busbar support | Version: N/PE support 1P, interior | Rating: IEC 61439-1, UL 508 | Size: 12-30 × 5, 20/30 × 10 mm
8US1923-2AA01Component: Busbar support | Version: Support 3P L1-L3, exterior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
8US1923-5AA00Component: Busbar support | Version: Support 2P L1/L2/L3/PE/N, exterior | Rating: IEC 61439-1 | Size: 12-30 × 5, 20/30 × 10 mm
8WC5031-1AA00Component: Flat copper profile EN 12167 | Version: Bare, 1100 mm | Rating: 400 A, 125 mm² | Size: 25 × 5 mm
8WC5033-1AA00Component: Flat copper profile EN 12167 | Version: Bare, 1100 mm | Rating: 447 A, 150 mm² | Size: 30 × 5 mm
8WC5123Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 200 A, 60 mm² | Size: 12 × 5 mm
8WC5121Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 250 A, 75 mm² | Size: 15 × 5 mm
8WC5126Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 320 A, 100 mm² | Size: 20 × 5 mm
8WC5131Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 400 A, 125 mm² | Size: 25 × 5 mm
8WC5133Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 447 A, 150 mm² | Size: 30 × 5 mm
8WC5128Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 520 A, 200 mm² | Size: 20 × 10 mm
8WC5134Component: Flat copper profile EN 12167 | Version: Bare, 2400 mm | Rating: 630 A, 300 mm² | Size: 30 × 10 mm
8WC5051Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 200 A, 60 mm² | Size: 12 × 5 mm
8WC5052Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 250 A, 75 mm² | Size: 15 × 5 mm
8WC5053Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 320 A, 100 mm² | Size: 20 × 5 mm
8WC5054Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 400 A, 125 mm² | Size: 25 × 5 mm
8WC5055Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 447 A, 150 mm² | Size: 30 × 5 mm
8WC5063Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 520 A, 200 mm² | Size: 20 × 10 mm
8WC5065Component: Flat copper profile EN 12167 | Version: Tin-coated, 2000 mm | Rating: 630 A, 300 mm² | Size: 30 × 10 mm
8US1922-1AC00Component: End cover | Version: L1-L3, for 8US1923-2AA01/3AA01/3UA01 | Rating: IEC, UL 508
8US1922-1AB00Component: End cover | Version: L1-L3 + PE/N, for 8US1923-4AA00 | Rating: IEC
8US1922-2EB00Component: Blanking cover | Version: 700 × 195 × 63 mm
8US1922-2EA00Component: Support for blanking covers | Version: Depth 32 mm
8US1922-2EA01Component: Support for blanking covers | Version: Depth 107 mm
8US1922-2UA01Component: Base plate | Version: 3-pole system, 1100 × 240 mm | Rating: UL 508
8US1921-2BE00Component: Connecting piece for Cu profiles | Version: Length 40 mm | Size: 20-30 × 5, 20-30 × 10 mm
8US1921-2BF00Component: Connecting piece for Cu profiles | Version: Length 55 mm | Size: 12-20 × 5, 12-20 × 10 mm
8US1943-3AA00Component: Busbar support 3P for TT profile | Version: Interior, L1-L3, finger-safe covers | Rating: 1600 A IEC / 1400 A UL | Size: TT special profile | Pack: 2 supports
8US1948-2AA00Component: TT special copper profile | Version: Tin-coated, 2400 mm, 720 mm² | Rating: 1600 A, 690 V AC | Size: 2400 × 30 × 40 mm
8US1922-2DA00Component: Cover profile for TT profile | Version: Length 1000 mm | Size: TT special profile
8US1941-2BF01Component: Connecting piece for TT profile | Size: TT special profile
8US1922-1JA00Component: Partition, closed | Version: 2400 mm, depth 76 mm
8US1903-3AB00Component: Busbar support 40 mm spacing | Version: 3P L1-L3, with inlays/covers | Rating: 690 V AC, IEC | Size: 12/15 × 5, 12/15 × 10 mm | Pack: 2 supports
8US1903-5AA00Component: Busbar support 40 mm spacing | Version: 5P L1-L3 + N + PE/N | Rating: 690 V AC, IEC | Size: 12 × 5, 12 × 10 mm

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