Chapter 2 23
Agilent 4072/4073 Preinstallation Guide, Edition 4
Site Preparation
Electrical Requirements
Electrical Requirements
This section describes electrical requirements for the 4072/4073 tester instruments, system controller, and
peripherals.
Power configurations and requirements
The 4072/4073 tester requires single phase power configuration with protective earth. Its line voltage is 200, 208,
220, or 240 V
AC
, and line frequency is 50 or 60 Hz. The line voltage and frequency are selected by specifying
options.
The system cabinet for the 4072/4073 tester is equipped with a power distribution unit (PDU) for each line voltage.
The rated current of the PDU is 20 A for 200/220/240 V
AC
, and 24 A for 208 V
AC
. The short circuit current rating
is 15 kA for 200 V
AC
, and 50 kA for 208/220/240 V
AC
.
The site installation location must satisfy the power requirements described in Table 2-2. If the line voltage is too
low or too high, sporadic failures or complete system shutdown may occur. For example, if you install the
4072/4073 tester with a line voltage of 200 V
AC
and a line frequency of 60 Hz, the electric power must satisfy the
line voltage range of 180 to 220 V
AC
, at least 20 A, and a line frequency range of 48 to 63 Hz.
NOTE Agilent Technologies recommends that the following line voltage conditions be satisfied for
measuring low-current and low-voltage with the 4073A/B:
Burst Noise: ≤ 1 kV (for earth, line, and neutral)
Surge Noise: ≤ 1 kV (for common and normal modes)
Agilent Technologies recommends that if the conditions above cannot be met, the tester should use
the noise cut trans.
This line voltage environment conforms to EN61326-1.
Table 2-2 Power requirements for 4072/4073 tester
Normal line voltage
a
a. Line frequency must be 48 to 63 Hz.
Allowable voltage range Rated current
Short circuit current rating
AC 200 V AC 180 - 220 V 20 A 15 kA
AC 208 V AC 187 - 228 V 24 A 50 kA
AC 220 V AC 198 - 242 V 20 A 50 kA
AC 240 V AC 216 - 252 V 20 A 50 kA for 4072A/4073A
35 kA for 4072B/4073B
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