Technical data

1 Getting Started Tutorial
14 U3402A User’s and Service Guide
The terminals at a glance
Figure 1-8 Input terminal
CAUTION
To avoid damaging this multimeter, do not exceed the rated input limit.
NOTE
Voltages above 300 VAC may be measured only in circuits that are isolated from mains.
However, transient overvoltages are also present on circuits that are isolated from mains.
The Keysight U3402A is designed to safely withstand occasional transient overvoltages up
to 2500 V PEAK. Do not use this multimeter to measure circuits where transient
overvoltages could exceed this level.