GE Industrial Solutions CPS3200U - Manual (Page 17)

CPS3200U Upstream System – 23” Product Manual CPS3200U
CC848779826 r09 December 2013 17
2. Torque each of the fasteners to 4 Nm or 35 in-lbs.
3. Make sure the DC connections to be installed are not powered by turning off circuit breakers assigned to
this frame and checking with an Ohm meter.
4. Open the distribution panel door on the right end of the shelf.
Figure 5 Preparing to Make DC Connections to Converter Shelf
5. Run 4 DC branch circuits back to the -48V source- Each feed supplies half of the shelf. A&B feeds for side
1 and A&B feeds for side 2.
Size each circuit to support 42 Amp List 2 Drains. Note: Lug landings are ¼ inch studs on 5/8 inch
centers. Use a minimum of 6 AWG conductor for environments up to +65°C (reference NEC Table 310-16
for applications of not more than three conductors in a raceway and correction factors for Ambient
Temperatures Over 30°C). Each installation will vary and the installer should review NEC cabling
requirements as well as local practice to ensure proper cable sizing is achieved for the local conditions.
Lugs for 6AWG conductor are as follows or available equivalent:
T&B 6STR30W
Burndy YAV6C-L2TC14-FX
6. Using the hardware supplied, attach the return wires for all 4 circuits.
Figure 6 Making DC Connections to Converter Shelf
7. Using the hardware supplied, attach the A and B -48V conductors for side 1 (Slots 1-8).
8. Using the hardware supplied, attach the A and B -48V conductors for side 2 (Slots 9-16).
9. Torque each of the ¼ - 20 fasteners to 7 Nm or 65 in-lbs.
10. Close the distribution door.
11. Proceed to Grounding the Shelf.