All our insulators are UL certified File Nr. E50533 e Nr. E50534 and we are the first on the market to have the complete certification for these components of panelboards and switchgears.
The reason indeed to have two UL files is that in this way our standoff insulators are full covered for use both below 1000V and above 1000V, as for their declared operating voltage.
The File Nr. E502533, which covers all our standoff insulators, refers to the classic category QEUY2/8 which concerns panelboard and switchgears components with low voltage use below 1000V, according to the standards UL67 e UL891 and for Canada CSA C22.2 No. 29-15 e 244-05.
The File Nr. E502534, which covers our standoff insulators with operating voltage above 1000V, efers to the category DLAR2/8 which concerns panelboard and switchgears components for use above 1000V, according to the international standard IEEE C37.20.2/3 and for Canada CSA C22.2 No. 31-18.
In this way all our standoff insulators are suitable for panelboards and switchegears for any voltage they can stand without further reviews and investigations.