Industrial UPS Copper Busbar Case

Three tin-plated copper busbar configurations tailored to different connection positions in UPS power cabinets.

Power Conversion Systems

Tin-Plated Copper Busbars for Industrial UPS Cabinets

Industrial UPS systems require reliable high-current connections between the rectifier, DC-link, battery, inverter and distribution sections. This case presents three custom tin-plated copper busbar configurations designed around different voltage, current, dimensional and terminal-layout requirements within an industrial UPS power system.

The supplied product specifications cover operating ratings from 1500VDC to 1900VDC and current ratings from 50A to 200A. Each busbar uses a project-specific outline, hole pattern and formed terminal arrangement to match its designated connection position.

Industrial UPS copper busbar system showing high-current power cabinet installations

High-current copper busbar connections used across industrial UPS power cabinets.

Rated Voltage Range
1500–1900VDC
Current Configurations
50–200A
Copper Plate Thickness
1.0–2.5 mm
Specified Insulation Test
5kV DC / 60s

Note: The 5kV DC test is specified for the 680 × 300 mm and 453 × 221 mm configurations.

Challenge

An industrial UPS cabinet can contain several high-current connection zones with different available spaces, interface positions and electrical ratings. A single standard copper bar cannot fit every location.

The project therefore required:

  • Different busbar outlines for wide and narrow installation areas
  • Accurate alignment with multiple bolted connection points
  • Formed terminal tabs matched to adjoining components
  • Tin-plated copper contact surfaces
  • High-voltage test requirements for selected configurations
  • Controlled hole positions, edges and overall dimensions
High-Voltage DCLimited Cabinet SpaceMultiple Connection PointsDrawing-Based Geometry

Solution

Three drawing-based copper busbar configurations were prepared for the industrial UPS application. The designs use different dimensions, copper thicknesses and terminal layouts according to their connection position and electrical rating.

  • Two 1500VDC, 50A busbars for different installation footprints
  • One 1900VDC, 200A busbar with a 2.5 mm copper plate
  • Tin-plated conductive surfaces
  • Custom holes and formed connection terminals
  • Insulation-withstand, leakage-current or partial-discharge requirements where specified
  • Final dimensional and visual inspection against the drawing
Laminated copper busbar assembly with a power module for an industrial UPS system

Application reference showing a compact busbar and power-module connection arrangement.

Industrial UPS Busbars

Three Configurations for Different Power Connections

The product family contains two 1500VDC, 50A configurations and one 1900VDC, 200A configuration. Each part is designed for a different connection footprint inside the UPS power system.

Custom 1500VDC 50A tin-plated copper busbar measuring 680 by 300 millimeters for an industrial UPS
Configuration 01 · 1500VDC / 50A

1500VDC Wide-Format Copper Busbar

The wide-format version measures 680 × 300 mm and uses a 1.0 mm copper plate with a tin-plated surface. Its larger body provides space for multiple distributed connection points and formed terminals.

Dimensions680 × 300 mm
Copper thickness1.0 mm
SurfaceTin plated
Rated voltage1500VDC
Rated current50A
Insulation withstand5kV DC / 60s, leakage < 2mA
Partial discharge< 10pC @ 2.8kV AC
Custom 1500VDC 50A tin-plated copper busbar measuring 550 by 120 millimeters for an industrial UPS
Configuration 02 · 1500VDC / 50A

1500VDC Narrow Copper Busbar

The narrow configuration measures 550 × 120 mm and uses a 1.0 mm copper plate. Its long profile, connection holes and formed terminal tabs suit a different cabinet position from the wide-format version.

Dimensions550 × 120 mm
Copper thickness1.0 mm
SurfaceTin plated
Rated voltage1500VDC
Rated current50A
Partial discharge< 10pC @ 2.6kV AC
Custom 1900VDC 200A tin-plated copper busbar measuring 453 by 221 millimeters for an industrial UPS
Configuration 03 · 1900VDC / 200A

1900VDC 200A High-Current Copper Busbar

The higher-current configuration measures 453 × 221 mm and uses a 2.5 mm copper plate with a tin-plated surface. Multiple formed terminals and mounting points support a compact multi-interface connection layout.

Dimensions453 × 221 mm
Copper thickness2.5 mm
SurfaceTin plated
Rated voltage1900VDC
Rated current200A
Insulation withstand5kV DC / 60s, leakage < 2mA
Why Choose Us

Key Advantages

Application-Specific Geometry

Different outlines, hole patterns and terminal positions can be produced according to the UPS equipment drawing and available cabinet space.

Tin-Plated Copper Contacts

Tin plating helps protect the copper contact surface from oxidation and provides a consistent surface for bolted electrical connections.

Defined High-Voltage Testing

Insulation-withstand, leakage-current and partial-discharge requirements are applied when specified for the individual busbar configuration.

Multiple Ratings, One Platform

The three configurations cover different footprints and ratings within the same industrial UPS application family.

FAQ

Frequently Asked Questions

What copper busbar ratings are shown in this industrial UPS case?

The supplied product information includes two 1500VDC, 50A busbars and one 1900VDC, 200A busbar. Their copper-plate thicknesses range from 1.0 mm to 2.5 mm.

Why are three different busbar geometries required?

Different parts of a UPS cabinet have different component positions, available spaces and connection interfaces. The outline, hole pattern and terminal arrangement must therefore match the specific installation position.

Why is tin plating used on the copper busbars?

Tin plating helps reduce surface oxidation and provides a consistent contact surface for bolted connections. The final plating specification should follow the project's electrical and environmental requirements.

Can the hole pattern and terminal layout be customized?

Yes. Overall dimensions, copper thickness, mounting holes and formed connection tabs can be manufactured according to the customer's drawing and equipment layout.

What electrical tests are listed for these products?

The supplied data includes 5kV DC insulation-withstand testing with leakage below 2mA for two configurations, plus partial-discharge requirements below 10pC for the two 1500VDC products. Only the test values shown in the supplied product information are listed.

What information is needed for a quotation?

Please provide the drawing, copper material and thickness, surface-treatment requirement, operating voltage and current, terminal layout, quantity and required inspection or electrical tests.

Need a Custom Busbar for Your Industrial UPS?

Send us your drawing, voltage and current requirements, connection layout and test criteria. Our engineering team will review the geometry and manufacturing requirements before quotation.