DC
• Use crimped and sealed copper ring terminal lugs with 5/16" (0.79 cm) hole or compression-type
lug to connect battery cables to DC terminals. Soldered cable lugs are also acceptable.
• Use recommended cable sizes (see page 36) to reduce losses and ensure high performance of FX
(smaller cables can reduce performance and possibly damage the unit).
• Keep cables together (e.g., using a tie-wrap) as much as possible.
• Ensure cables pass through the same knockout and conduit fittings to allow inductive currents to
cancel.
TORQUE REQUIREMENTS
CONNECTION
AC and PV breakers
DC shunt
DC battery connections
FX's DC terminals
FX's AC terminals
56
TORQUE INCH-POUNDS/Nm
to 22 inch-lbs/2.48 Nm
to 15 foot-lbs/20.4 Nm
to 10 foot-lbs/13.6 Nm
to 5 foot-lbs/3.38 Nm
to 30 inch-lbs/3.38 Nm
Table 1 Torque Values for Installation