The basic principle of operation is identical, but the structure is completely different. In conventional reed switches, the current flow path is common with the magnetic flow path. Bestact uses a dual contact structure, consisting of an electrical circuit section and a magnetic circuit section. This unique structure characterizes excellent performance and reliability in Bestact.
Bestact’s good DC breaking performance comes from glow discharge. DC inductive loads are normally braoken by a long time of arc discharge. This means they normally require contact capacity sufficient to withstand the resulting heat, and a gap between the contacts to remove the arc. Bestact, however, breaks inductive loads while reducing current in the region of the glow discharge.
Consequently Besatct swtiches produce little heat and very low contact damage. A comparison of Bestact and conventional large plug-in relays for DC breaking performance showcases the difference. Bestact has better DC breaking performance than mechanical power relays.
Please refer to the document of the catalogue section on this site.