Liebert POWER PROTECTION STATIC TRANSFER SWITCH Benutzerhandbuch

Two input power junction boxes and interconnecting cables provide under floor connection for the two 

input power feeds. Power terminal blocks are provided in each junction box for the connection of the 

input power conductors and a parity-sized ground conductor. The junction boxes are NEMA 1 enclo-

sures. A main input cable assembly is provided for connection between the unit and the junction box. 

The cable length between the unit and junction box is 10 feet (3 meters) long.
See 5.2 - Input Junction Box Installation (Optional) on page 10 for more information and specifi-

cations. See Figure 30 for wiring details.

Seismic anchors are available for anchoring the unit to a concrete floor to meet seismic Zone 4 

requirements. See 4.1 - Leveling and Anchoring the Unit to the Floor on page 8 for more infor-

mation. Installation details are provided in Figures 11 through Figure 13 on page 25.

Seismic floor stands in four heights—18", 24", 30" and 36" (457mm, 610mm, 762mm and 914mm)—

are available for the STS2. The stands can be fastened to the floor to meet seismic Zone 4 require-

ments. See 4.0 - Locating the STS2 and Figures 33 through 44 for instructions and details for 

installing seismic floor stands.