ABB Zenith ZBTS T Series - Power Connections with Compression Lugs (Option)

2
75
34ZBTS_30-1200A rev.A / 1SCC303043M0201
—
Fig. 7.4 Bypass-isolation transfer switch has
solderless screw-type terminals as standard for the
Source 1, Source 2 and Load power connections
—
Fig. 7.5 Screw-type terminals for the Source 1, Source
2 and Load power connections, see Table 7.1.
1 2 3
OZXA-800S
OZXA-1200
OZXA-25
OZXA-412L
7.2.2 Power Connections with
Compression Lugs (option)
ABB Zenith Bypass-isolation automatic
transfer switches are supplied as an op-
tion for cable lug connections. Below the
bolt size and tightening torque for com-
pression lugs. Connect the Source 1,
Source 2 and Load conductors to the
clearly marked busbars. Remove surface
oxides from cables by cleaning with a wire
brush. Verify that all connections are cor-
rect places before tightening the com-
pression lugs. All connections must be
tightened to the proper torque values as
shown in Table 7.2. See also the warnings
on previous pages.
Switch
size
Bolt
size
Tightening torque
[Nm / lb.in]
  
—
Table 7.2 Bolt size and tightening torque for
compression lugs
T
T
—
Fig. 7.6 Wiring / Compression lugs