Static switch handles interrupted power

An Emerson Network Power - Adaptive Power and Cooling product story

Edited by the Electronicstalk editorial team Jan 16, 2008

The four-pole Liebert Hiswitch2 ensures maximum supply availability through automatic switching without any overlapping of the input sources.

The Liebert Hiswitch2 family of static switches has been expanded with a new four-pole version.

It automatically switches the load to the secondary source in case of a critical event in the primary source.

It can also solve possible problems due to load current in the grounding connection, by cutting off and switching the neutral wire as well as switching the load between the two sources.

When the primary source is available again, the load is switched back automatically.

Connecting the critical load to the outputs of independent UPS systems, the four-pole Liebert Hiswitch2 ensures maximum supply availability through automatic switching without any overlapping of the input sources.

In this way, it eliminates possible critical issues related to power distribution.

Liebert Hiswitch2 four-pole version monitors input supply, making sure that the parameters fall within the preset tolerance range.

As soon as an anomaly arises, Hiswitch is activated immediately.

It works with three redundant logic devices.

Each digital signal processor (DSP) can operate independently, communicating with the other devices and making decisions based on a sophisticated selection system.

If any DSP fails the other two can effectively ensure power supply to the load.

All internal supplies are protected to prevent the spread of any internal and external damage.

The four-pole version of the Liebert Hiswitch2 can be easily configured through a standard LED operator panel or an optional touchscreen LCD panel.

These features, together with front access and top and bottom cable inlets, enable easy, low-cost installation and maintenance.

Further features include surge protection at the input and date and hour event logging.