Trane IntelliPak 3 with Symbio 800 Installation, Operation And Maintenance Manual page 42

Installation
Figure 16. Typical field power wiring (20 to 75 ton)
Table 12. Customer connection wire range
Units with Main Power Terminal Block (All Voltages)
Block Size
510 AMP
760 AMP
Note: Block size and disconnect size are calculated by selecting the size greater than or equal to 1.15 x (Sum of Unit Loads). See unit literature for unit load values.
250A Disconnect switch wire binding screws
The 250A disconnect switch (standard and high SCCR)
installed for main power connection accommodates 4 AWG
– 350 kcmil wires on the "OFF" side. As shipped from the
factory, the wire binding screws only accommodate 3/0
AWG – 350 kcmil wires. If 4 AWG – 2/0 AWG field power
42
RE 200/230 ONLY: ADDITIONAL FIELD SUPPLIED DISCONNECT SWITCH
FIELD SUPPLIED DISCONNECT SWITCH
3-WIRE POWER SUPPLY
PLUS GROUND
Wire Qty Connector Wire
Range
2 #6 — 250 kcmil
2 #4 — 500 MCM
PITCH
PITCH
POCKET
POCKET
3-WIRE POWER SUPPLY
PLUS GROUND
Units with Main Power Disconnect Switch (All Voltages)
Block Size
250 AMP
400 AMP
600 AMP
wiring is used, then the factory installed wire binding
screws must be replaced with those that are provided with
the kit installed near the disconnect switch (these screws
should have a blue top surface). See the kit for instructions
on changing the wire binding screws.
Wire Qty Connector Wire
Range
1 3/0 - 350 kcmil
2 2/0 - 500 kcmil
2 2/0 - 500 kcmil
RT-SVX080A-EN