Insulating busbar supports to mount copper or aluminium busbars, tested to hold them securely during a short circuit.

Conformity to standards

IEC 61439-1
IEC 60865-1


SB 44 busbar support is available in X versions

Item Section Number of poles Rated voltage Busbar distance Select
50280410 15x3..32x6 4 690 VAC 150..1000
50260450 20..32 4 1000 VAC


Insulating materials

Our range of busbar supports is made using thermoplastic. This very resistant material (reinforced fibreglass) is insulating so there are no risks in terms of clearance and creepage distances.


Most bar supports have an M8 screw connection which provides outstanding robustness to the entire busbar structure.


The distance between the bar support attachment points is compatible with all commercially available enclosures.

Resources & Documentation


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