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83-530-000 Rev J
3.9. Connecting the Load
WARNING
Turn Off the AC input power before making or changing any rear
panel connection. Ensure all live circuits are discharged and that all
connections are securely tightened before applying power. There is a
potential shock hazard when using a power supply with a rated output
greater than 40V.
The load cables between the power supply outputs and the load must be a specified. The
cable connections must be secured to required torque spec. Failure to meet these
requirements could cause substantial voltage losses, terminal over-heating, and insulation
degradation.
The output styles vary depending o the output voltage range.
Platform A & B (Output Voltage Range 7.5V-80V &100V-300V).
– Vertical Bus Bar Configuration,
– 0.422 in. mtg. Hole,
– Use 3/8 in dia. Bolt.
Platform C (Output Range 400V- 600V)
– Stud configuration
– M6 x1.0 nut/washer size
The output connections are protected with a metal cover. To connect cables, remove the
cover. Connect the proper size cables with nuts and bolts.
Proper torque (as per bolt size) should be applied to the bolts.
Typical cable sizes for load connections are shown below. Use cables that meet
requirements for current, voltage, length, temperature and termination.
CURRENT (Amps)
Io
RECOMMENDED
COPPER WIRE SIZE
Io ≤ 50 6 AWG.
50 < Io ≤ 100 0 AWG.
100 < Io ≤ 187.5 1 x 0000 AWG.
187.5 < Io ≤ 333 2 x 0000 AWG.
333 < Io ≤ 700 3 x 0000 AWG.
700 < Io ≤ 1000 4 x 0000 AWG.
Table 3-2: Recommended Cable Size for Output Connection
3.9.1. Wire Termination
The wires should be properly terminated with terminals securely attached. DO NOT use
un-terminated wires for load connection at the power supply.
CAUTION
Be careful when connecting the remote sense lines to the far end of the load
cables. Reversing the sense line polarity to the load, or leaving the +S or –S
sense lines opened, could damage the power supply.
See Section 3.10.3 for more information.
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