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What are the different specifications of busbar connectors

Busbar connectors typically support 100–1250 A per contact, mate with 3.0 mm busbar blades, offer blind‑mate alignment, and use copper‑alloy contacts with silver or nickel plating, as shown in TE Connectivity and Amphenol product specifications.Overview

Busbar connectors are high‑current power interconnects used in servers, data centers, industrial systems, and power distribution. Specifications vary by manufacturer, but common parameters include current rating, busbar thickness, plating, hot‑plug capability, and misalignment tolerance.

Key Specifications (from TE Connectivity & Amphenol)1. Current Rating
  • 150–1250 A per contact depending on model (Amphenol BarKlip series).
  • TE CROWN CLIP connectors:
    • Junior: ~170 A
    • Standard: 300 A
    • Senior: 420 A
2. Busbar Blade Thickness
  • Typical mating thickness: 3.0 mm ±0.1 mm (TE CROWN CLIP).
  • TE 2204761‑2: 3 mm (0.118 in).
3. Plating & Materials
  • Contact base: Copper alloy.
  • Plating: Silver (e.g., 3 µm) with nickel underplating.
  • Housing: Stainless steel (TE 2204761‑2).
4. Operating Voltage
  • Up to 600 VAC / 48 VDC (TE 2204761‑2).
5. Temperature Range
  • Typical: –55 °C to +105 °C.
6. Mechanical Features
  • Blind‑mate alignment ±0.75–1.0 mm depending on model.
  • Hot‑plug capable (CROWN CLIP series).
  • Screw‑mount or solder‑mount options.
7. Dimensions (example: TE 2204761‑2)
  • Length: 52 mm
  • Width: 12 mm
  • Height: 30 mm
Example Product Specs TableManufacturerSeries / PartCurrent (A)Busbar ThicknessPlatingHot‑PlugNotesAmphenolBarKlip BK1200Up to 1250 A3 mmLow‑resistance platingYesORv3 compliant TECROWN CLIP Jr170 A3.0 mmNickel/SilverYes±0.75 mm misalignment TECROWN CLIP Std300 A3.18/3.00 mmNickel/SilverYesBlind‑mate design TECROWN CLIP Sr420 A3.0 mmSilverYesHigh‑current 12/48 V systems TE2204761‑2350 A3 mmSilver (3 µm)Not specifiedStainless steel housing What Specs Matter Most When Selecting a Busbar Connector
  • Current rating (match system load)
  • Busbar thickness compatibility
  • Hot‑plug requirements
  • Misalignment tolerance for blind‑mate systems
  • Plating type for conductivity and corrosion resistance
  • Thermal rise performance
  • Mechanical mounting style (screw, solder, floating)

These specifications ensure safe, efficient, and reliable high‑current power distribution in demanding applications.

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