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Input Connections
Connect the Power Cord
1. Unscrew the line fuse cap from the rear panel and verify that the fuse rating matches what is
specified on the FUSES label on the rear panel. Reinstall the fuse. (See table 3-1 for part numbers.)
2. Connect the power cord to the IEC 320 connector on the rear of the unit. If the wrong power cord
was shipped with your unit, contact your nearest Keysight Sales and Support Office (refer to the list
at the back of this guide) to obtain the correct cord.
NOTE:
The detachable power cord may be used as an emergency disconnecting device. Removing
the power cord from the ac input connector will disconnect ac input power to the unit.
Output Connections
The output connector has a termination for the + and output, the + and sense terminals, and an earth
ground terminal. The 5-pin connector is removable and accepts wires sizes from AWG 22 to AWG 12.
Disconnect the mating plug from the unit by pulling it straight back.
Front panel binding posts are available to connect load wires for bench operation. The front panel
binding posts are paralleled with the rear panel + and connections. Before using the front panel binding
posts, make sure that the sense switch on the back of the unit is set to Local.
NOTE:
Front panel binding posts are provided for convenience. Only the rear panel terminals are
optimized for noise, regulation, and transient response as documented in Appendix A.
Wire Considerations
To minimize the possibility of instability on the output,
keep load leads as short as possible
bundle or twist the leads tightly together to minimize inductance
Current Ratings
Fire Hazard
To satisfy safety requirements, load wires must be large enough not to overheat when
carrying the maximum short-circuit current of the dc source. If there is more than one
load, then any pair of load wires must be capable of safely carrying the full-rated current
of the dc source.
The following table lists the characteristics of AWG (American Wire Gage) copper wire.
Table 3-2. Ampacity and Resistance of Stranded Copper Conductors
AWG No.
20
18
16
14
12
Ampacity (in free air)
8.33
15.4
19.4
31.2
40
Resistance (at 20 deg. C)
/m
0.0345
0.0217
0.0137
0.0086
0.0054
Installation - 3
/ft
0.01054
0.00663
0.00417
0.00262
0.00165
23
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