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BS-250A Four Pole Insulating Support


  • Create custom four pole distribution blocks for an electrical distribution system
  • Mounts with screws
  • Protection screen can be fixed using spacers
  • Halogen free
  • RoHS compliant


Material: Steel; Glass Fibre Reinforced Polyamide
Finish: Electrogalvanized
Max Working Voltage, IEC (Ui): 630 VAC; 630 VDC
Working Temperature: -40 to 266 °F
Typical Application Current Rating: 160 – 250 A
Complies With: IEC® 60439.1; IEC® 61439.1; IEC® 60695-2-11 (Glow Wire Test 960 °C)
Flammability Rating: UL® 94V-0
Part Number Article Number Busbar Width Busbar Thickness DepthD HeightH A Screw DiameterSc Unit Weight
BS-250A 551300 0.59" – 0.79" 0.2" 1.77" 5.91" 5.12" M6 0.11 lb
Must be used with copper busbars.

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IEC 61439-1 Busbar Supports
IEC 61439-1 (2012), 50 KB English