Liebert Network Power Switch

Vertiv’s Liebert NPS provides rapid switching between two independent AC power sources, for the uninterrupted operation of critical electronic equipment. Liebert NPS’s proven power switching technology allows dual AC power paths all the way up to the critical load, for the ultimate AC power system redundancy, power availability, and fault tolerance.

Category:

Description

Based on proven UPS technology, the Liebert NPS power transfer switch is optimally installed near the protected equipment. This placement ensures that redundant power paths are available all the way to the load.

Product Overview:

Input Voltage: 220, 230, or 240 volts single phase, 2 W + G, 50 Hz.

Interfaces/Ports:

Cable Access: Rear Entry

Operational Conditions:

Operating Temperature: 0 to 60°C

Benefits

Designed for High Nines Availability:

  • Break-before-make switching eliminates any possibility of connecting the two independent power sources, even under fault conditions.
  • Diagnostic and transfer tests identify potential switch failures before they become critical.

Rapid Operation:

  • The Network Power Switch features a transfer time of six milliseconds, which is imperceptible to sensitive electronic equipment, according to the IEEE Standard 446 susceptibility curve for IT components.
  • Automatic transfer ensures the protection of critical loads by switching to an alternative power source as soon as an issue is detected.
  • Manual transfer enables power sources to be switched as needed for scheduled shutdowns or maintenance.

Features

  • Manual and automatic transfers
  • Sense and Transfer time: Less than 6 milliseconds
  • Hot Swappable Electronic Static Switching Module
  • Break-before Make-switching
  • 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
  • Isolated neutrals
  • Standard Voltage free contacts for alarm extension