9
5. Connect the AC output power cable to the terminal block, and then tighten the nut using a torque 
wrench that has an extension rod.
• Ensure that AC terminations provide firm and solid electrical connections. Failing to do so may 
cause SUN2000 malfunction and damage to its terminal block, even starting thermal events.
• When connecting a PE cable, secure the screws using a socket wrench with an extension 
wrench longer than 200 mm.
• If the AC output power cables are subject to a pulling force because the inverter is not installed 
stably, ensure that the last cable that bears the stress is the PE cable.
a. Three-core cable (excluding the ground 
cable and neutral wire)
b. Four-core cable (including the ground cable 
but excluding the neutral wire)
c. Four-core cable (excluding the ground 
cable but including the neutral wire)
d. Five-core cable (including the ground cable 
and neutral wire)
SUN2000-50KTL/60KTL-M0