Keysight MP4300 Series User Manual

FIRE HAZARD Select a wire size large enough to carry short-circuit current without
overheating (refer to the following table). To satisfy safety requirements, load wires
must be heavy enough not to overheat while carrying the short-circuit output current.
Along with conductor temperature, you must also consider voltage drop when selecting wire sizes. The
following table lists the resistance for various wire sizes and the maximum lengths to limit the voltage
drop to 1.0 V per lead for various currents.
Note that the minimum wire size required to prevent overheating may not be large enough to prevent
over-voltage tripping or maintain good regulation. To help prevent nuisance tripping of the over-
voltage circuit, select a wire size sufficient to handle the FULL output current of the unit no matter
what the intended load current or current limit setting.
Load lead resistance is also an important factor relating to the CV stability of the instrument when
remote sensing capacitive loads. If high capacitance loads are expected, you should not use wire
gauges heavier than AWG 12 to AWG 14 for long runs of load lead.
Wire Size Metric size Resistance Max length to limit voltage to 1 V/lead
for 5 A for 10 A
AWG
1
2 wires bundled 4 wires bundled Ω per foot Wire length in feet
18 14.5 12.8 0.0064
30 15
16 18.2 16.1 0.0040
50 25
14 29.3 25.9 0.0025
80 40
12 37.6 33.2 0.0016
125 63
10 51.7 45.7 0.0010
200 100
8 70.5 62.3 0.0006
320 160
Area in mm
2
2 wires bundled 4 wires bundled Ω per meter Wire length in meters
1 12.7 11.2 0.0200
10 5
1.5 15.0 13.3 0.0137
14.6 7.2
2.5 23.5 20.8 0.0082
24.4 12.2
4 30.1 26.6 0.0051
39.2 19.6
6 37.6 33.2 0.0034
58 29
10
(solid wire only)
59.2 52.3 0.0020
102 51
1. Capacity for AWG wires derived from MIL-W-5088B. Maximum ambient temperature: 55°C. Maximum wire
temperature: 105°C.
2. Capacity for metric wires are derived from IE Publication 335-1.
3. Capacity of aluminum wire is approximately 84% of that listed for copper wire.
4. Because of wire inductance considerations, it is also recommended that you keep your load leads twisted, tie
wrapped, or bundled together and less than 50 feet (14.7 meters) in length per lead.
5. Wire ferrules are included with this product for AWG 12 and 4 mm
2
stranded wires.
Keysight MP4300 Series Operating and Service Guide 45
2 Installing the Instrument

Keysight MP4300 Series Specifications

General

Brand	Keysight
Model	MP4300 Series
Category	Power Supply
Language	English