Rockwell Automation 7000 PowerFlex Medium Voltage Air-Cooled (B Frame) Installation - ForGe Control - Manual (Page 90)

90 Rockwell Automation Publication 7000-IN007E-EN-P - June 2014
Appendix C Line & Load Cable Sizes
Notes:
This data is informative only; do not base final design criteria solely on this data. Follow national and local installation codes, industry best practices, and cable manufacturer
recommendations.
1. Some ‘A’ Frames, most ‘B’ Frames, and all ‘C’ Frames have a single enclosure opening provision for both line and load cables (designated by
1 ). Most ‘A’ Frames and some ‘B’ Frames
have separate opening provisions for line and load cables. All cabling capacities shown in this table are “worst case” conditions when both line and load cabling enters and exits in the
same direction.
2. Cable sizes are based on overall dimensions of compact-stranded three-conductor shielded cable (common for industrial cable tray installations). Maximum sizing stated accounts for
minimum rated cable insulation requirements and the next higher-rated cable (i.e., 8 kV is not commercially available in many areas of the world, therefore Rockwell Automation
provides an 8 kV (minimum rating) as well as a 15 kV rating, when applicable. Enclosure openings will accommodate the thicker insulation on the higher-rated cable. IEC ratings show
the equivalent to the NEMA sizes. The exact cable mm
2
size shown is not commercially available in many cases; use the next smaller standard size.
3. Cable enters termination point horizontally in this case, therefore orient space for the stress cones horizontally also.
4. Minimum cable bend radius recommendations vary by national codes, cable type, and cable size. Consult local codes for guidelines and requirements. General relationship of cable
diameter to bend radius is typically between 7x...12x (e.g., if the cable diameter is 1 in. [2.54 cm] the minimum bend radius could range between
7...12 in. [18.8...30.48 cm]).
5. For minimum cable insulation requirements, refer to the “PowerFlex 7000 Medium Voltage AC Drive User Manual” for your particular frame (‘A’, ‘B’, or ‘C’ Frame). Stated voltages are
peak line-to-ground. Note: Some cable manufacturers rate cabling based on RMS line-to-line.
6. Ground lug capabilities: ‘A’ Frame—two mechanical range lugs for ground cable connections; ‘B’, or ‘C’ Frame—up to ten mechanical range lugs for ground cable connections are
available, typically these frames supply four. Mechanical range lugs can accommodate cable size #6-250MCM (13.3...127 mm
2
).
7. 18 Pulse VFDs (R18TX) have nine line-side connections from the secondary isolation transformer windings entering the VFD. Lug pads are available for each connection. The lug pad
and enclosure can generally accommodate two cables per connection, 18 cables in total (applies to all “B” and “C” configurations).
8. Maximum cable size for “B” Frame (two per phase) and ‘C’ Frame (four per phase) is 500 MCM (253 mm
2
, limited by lug pad assembly size and clearance requirements.
9. As cabling methods can vary widely, maximum cable sizes shown do not account for the size of the conduit hub. Verify size of conduit hub(s) against the “Drive enclosure openings”
shown.
‘C’ Frame
(Liquid-
Cooled)
PF7000
2400V/60Hz/RP18TX
7 46...430 70.8
9.79x21.06 (249x535)
1 (2) 500MCM 5kV or
8kV/phase (2) 253mm² 5kV or
8kV/phase 16.4 (415)
PF7000 3300V/50Hz/RP18TX 7 46...430 70.9 9.79x21.06 (249x535) 1 (2) 500MCM 5kV or
8kV/phase (2) 253mm² 5kV or
8kV/phase 16.4 (415)
PF7000L 4160V/50Hz/RPDTD 375...575 70.71(L-A), 70.72 (L-L), 70.76
(LA), 70.77 (L-L), 70.89 (L-A),
70.94 (L-L) 11.22x23.62 (285x600) 1 (4) 500MCM
5 kV or 8 kV/phase (4) 253mm 2 5 kV or
8 kV/phase
16.4 (415)
PF7000L 4160V/60Hz/RPDTD 375...625 70.71(L-A), 70.72 (L-L),
70.76 (LA), 70.77 (L-L)
11.22x23.62 (285x600)
1 (4) 500MCM
5 kV or 8 kV/phase
(4) 253mm
2
5 kV or
8 kV/phase
16.4 (415)
PF7000L 6600V/50Hz/RPDTD 325...575 70.80 (L-A), 70.85 (L-L), 70.86
(L-L), 70.87 (L-L), 70.88 (L-L),
70.91 (L-A), 70.92 (L-A), 70.93
(L-A) 11.22x23.62 (285x600) 1 (4) 500MCM
8 kV or 15 kV/phase (4) 253mm 2 8 kV or
15 kV/phase
16.4 (415)
PF7000L 6600V/60Hz/RPDTD 325...575 70.80 (L-A), 70.85 (L-L), 70.86
(L-L), 70.87 (L-L), 70.88 (L-L),
70.91 (L-A), 70.92 (L-A), 70.93
(L-A), 70.93 (L-A) 11.22x23.62 (285x600) 1 (4) 500MCM
8 kV or 15 kV/phase (4) 253mm 2 8 kV or
15 kV/phase
16.4 (415)
PF7000L 4160V/50Hz/R18TX 375...657 70.50 (L-A), 70.55 (L-L) 9.79x21.06 (249x535) 1 (2) 500MCM
5 kV or 8V/phase (2) 253mm 2 5 kV or
8 kV/phase
16.4 (415)
PF7000L 4160V/60Hz/R18TX 375...657 70.50 (L-A), 70.55 (L-L) 9.79x21.06 (249x535) 1 (2) 500MCM
5 kV or 8V/phase (2) 253mm 2 5 kV or
8 kV/phase
16.4 (415)
PF7000L 6600V/50Hz/R18TX 375...657 70.50 (L-A), 70.53 (L-A),
70.55 (L-L), 70.58 (L-L) 9.79x21.06 (249x535) 1 (2) 500MCM
8 kV or 15 kV/phase (2) 253mm 2 8 kV or
15 kV/phase
16.4 (415)
PF7000L 6600V/60Hz/R18TX 375...657 70.50 (L-A), 70.53 (L-A),
70.55 (L-L), 70.58 (L-L) 9.79x21.06 (249x535) 1 (2) 500MCM
8 kV or 15 kV/phase (2) 253mm 2 8 kV or
15 kV/phase
16.4 (415)
PRODUCT OUTPUT (MOTOR SIDE)
Bulletin Description
(V/Freq./Rect.)
Drive
rating (A)
Drive Structure Code Drive Enclosure Opening
Inches (mm) 1
Max. Size & No.
Incoming Cables:
NEMA
2-4-5-6-8-9
Max. Size & No.
Incoming Cables:
IEC
2-4-5-6-8-9
Vertical Space Avail.
for Stress Cones
Inches (mm)