Powerwalker MBS/PDU 19in 3/1P 20K for all 20K 3/1 Rack/Tower UPS Art. No. 10133006

An external Maintenance Bypass Switch. It provides continuous power without shutting down the connected loads during UPS scheduled maintenance or battery replacement. Built in “Make Before Break” technology, it is easy in operation with a rotary switch. It features terminal block for connecting input and output. Using a relay contact it sends signal to the UPS to switch it to the internal bypass to avoid short of the input and output of the UPS.