Alpha Technologies CXDS-M 600_600-19 - Manual (Page 22)

9400002-J0 Rev A 20
Table C — Cable size equivalents (AWG to Metric)
Cable size (see notes 1
and 2)
Circular mils Square millimeters Equivalent metric cable
6 AWG 26250 13.30 16
4 AWG 41740 21.15 25
2 AWG 66370 33.63 35
0 AWG (or 1/0) 105600 53.48 50 or 70
00 AWG (or 2/0) 133100 67.42 70
0000 AWG (or 4/0) 211600 107.2 120
313 MCM (or kcmil) 313600 159 150 or 185
350 MCM (or kcmil) 350000 177.36 185
373 MCM (or kcmil) 373700 189 185 or 240
500 MCM (or kcmil) 500000 253.36 300
535 MCM (or kcmil) 535300 271 300
750 MCM (or kcmil) 750000 380.00 400
777 MCM (or kcmil) 777700 394 400
5.1.3 Recommended Torque Values
Recommended torque values for connection to the power system:
x Clear hole connections (nut and bolt)
x PEM studs
x PEM threaded inserts
x Thread formed connections (in copper bus bar)
Table D — Recommended torque values
1/4" 8.8 ft-lbs (105 in-lb)
3/8" 32.5 ft-lbs (390 in-lb)
1/2" 73 ft-lbs (880 in-lb)
SAE Grade 5 hardware is required for these torque values.
5.1.4 Cabling Layout
The cabling at the time of installation is very straightforward.
x The DC input cables connect to the top BDFB at the rear.
x The load cables from the BDFB fuse/breaker exit the unit through the top. Open the front door of the
BDFB to access fuse/breaker connections.
x All signaling wires (for example, alarms from the CXC Controller) interfacing with the outside world
exit the BDFB through the top or bottom.
5.1.5 Alarms
All applicable alarms should be connected to the local alarm-sending unit from the power system. The CXC sys-
tem controller provides form “C” relay contacts for interconnection.