High current DC switch reduces PV costs

elc-oct16-p18-switchtec1Claimed to reduce costs in PV (photovoltaic) applications, Telergon’s S6000N DC switch disconnector is available from distributor Switchtec. 


It uses 1,500V DC allowing a PV Installer to save costs as higher-voltage systems enable longer strings, which means fewer combiner boxes, less wiring and trenching, and less labour, says the company.

It is available with terminal configurations to suit a installation’s specific requirements and can be supplied with its input and output terminals at the top of the switch, at the bottom, or one at the top and one at the bottom.

The switch is constructed from two, type S6000 switches, mounted back-to-back with built in, internal bridging links. It is available in 315 or 400A 1,500VDC ratings, with contact arrangement sandwiched with self-cleaning blade contacts and pre-arc zones, claimed to ensure long term, fault-free energy transmission. The contacts are silver alloy coated for a long, trouble-free electromechanical life.