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BS-125A Four Pole Insulating Support

BS-125A (551311)


  • Create custom four pole distribution blocks for an electrical distribution system
  • Protection screen can be attached directly to the support
  • Includes screws to mount threaded copper busbars
  • Clips on to DIN rail using DR-CLIP or mounts with screws
  • Halogen free
  • RoHS compliant


Part Number BS-125A
Article Number 551311
Material Steel
Glass Fibre Reinforced Polyamide
Finish Electrogalvanized
Max Working Voltage, IEC (Ui) 1,000 VAC
1,500 VDC
Working Temperature -40 to 130 °F
Typical Application Current Rating 125 – 160 A
Complies With IEC® 60439.1
IEC® 61439.1
IEC® 60695-2-11 (Glow Wire Test 960 °C)
Flammability Rating UL® 94V-0
Busbar Width 0.47" – 0.59"
Busbar Thickness 0.16" – 0.20"
Depth (D) 4.63"
Height (H) 4.96"
Screw Diameter (Sc) M5
Unit Weight 0.22 lb
Certifications CE
EAC 8546901000 (Russian Federation)
IEC 61439-1 Busbar Supports
Standard Packaging Quantity 10 pc
UPC 78285687623
EAN-13 3479775513119
Must be used with copper busbars.

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IEC 61439-1 Busbar Supports
IEC 61439-1 (2017), 50 KB English
IEC 61439-1 Busbar Supports
IEC 61439-1 (2017), 51 KB Français