Vertiv's Liebert NPS provides rapid switching between two independent AC power sources, for uninterrupted operation of critical electronic equipment. Liebert NPS proven power switching technology allows dual AC power paths all the way up to the critical load, for the ultimate in AC power system redundancy, power availability and fault tolerance.
Manual and automatic transfers
Sense and Transfer time: Less than 6 milliseconds
Hot Swappable Electronic Static Switching Module
Selectable Preferred Sources
Selectable Auto/Manual Retransfer
Redundant Control Power Supplies
Natural Convection Cooling
Live Mimic On Hot Swappable Unit For Indicating Load Supply Status & Alarms
Make Before Break Manual Bypass Switch To Transfer Load From Static Switch To Direct Source 1 Or Source 2
Standard Voltage free contacts for alarm extension
Designed for High Nines Availability
Break- Before - Make switching eliminates any possibility of connecting the two independent power sources together, even under fault conditions.
Diagnostics and transfer tests detect any potential switch failures before the problem becomes critical.
Network Power Switch transfer time of six milliseconds is invisible to sensitive electronic equipment. (As per IEEE Standard 446 susceptibility curve for IT component)
Automatic transfer protects the critical load as soon as a problem is detected on the power source by switching to the alternative supply.
Manual transfer allows power sources to be switched whenever required for scheduled source shutdowns or maintenance.