Keysight Technologies U1273A Guide De L'utilisateur page 51

Introduction 1
Table 1-9 Terminal connections for different measuring functions
Rotary switch position Input terminals Overload protection
1000 V
RMS
Z
LOW
1000 V for short circuit <0.3 A
RMS
Smart
Auto
11 A/1000 V, fast-acting fuse
440 mA/1000 V, fast-acting fuse
Keysight U1273A/U1273AX User's Guide 51