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Bus bridge

Low-voltage copper busbar bridge

660 V · 630–5000 A · ΔT ≤ 60 K

Zhenxiang fabricates its own copper busbar on CNC punch-shear and bending machines, and supplies low-voltage bus bridge for connecting transformers, switchboards and line-ups in three-, four- and five-wire systems.

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Bus bridge Low-voltage copper busbar bridge

Tested and certified

Type-tested to the standards listed below.

Built for

Transformer to switchboard links, Data centre power rooms, High-rise risers.

Standards

GB 7251, IEC 61439-6.

Technical data

ParameterValue
Rated voltage / frequency660 V / 50 Hz (60 Hz on request)
Rated current630–5000 A (60 A minimum per spec)
Insulation resistance≥ 1000 Ω/V phase-to-phase and phase-to-enclosure
Dielectric test2500 V, 50 Hz, 1 min, no breakdown
Short-circuitWithstands rated short-time and peak currents per national standard
Operating marginRated current at 110 % rated voltage
Temperature rise≤ 60 K at contact points under continuous rated current
Service conditionsIndoor continuous; -10 to +40 °C; RH ≤ 90 % at 20 °C

Standards

  • GB 7251
  • IEC 61439-6

Applications

  • Transformer to switchboard links
  • Data centre power rooms
  • High-rise risers

Production process

From enquiry to commissioning

  1. Enquiry and analysisSend a single-line diagram, load list or panel schedule. An engineer confirms voltage, short-circuit level, forms of separation and applicable standards within 24 hours.
  2. Proposal and drawingsBudgetary quotation in five working days, then general-arrangement drawings, busbar sizing and a bill of materials for approval.
  3. Order and engineeringApproved drawings release procurement of Schneider, ABB or specified components and sheet-metal programming.
  4. Fabrication and assemblyLaser cutting, CNC bending, powder coating, busbar processing, primary assembly and secondary wiring in Shaoshan.
  5. Factory acceptance testDielectric, loop-resistance, insulation, earth-continuity, IP and current-injection tests; customers and consultants welcome to witness.
  6. Delivery and after-salesExport packing, sea or air freight, commissioning support and a 7×24 service line with Schneider-trained engineers.

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Quote this product

Send the single-line diagram, short-circuit level and panel schedule; a budgetary quotation follows within five working days.

Request a quotation