
IRS31Pro-UMB Operating Manual V10 / 01.2020
G. Lufft Mess- und Regeltechnik GmbH 20
Figure 10: Installing the IRS31Pro-UMB
7.4 Use of Surge Protection (8379.USP)
When using surge protection (order no.: 8379.USP), please note the connection example in the operating
instructions for surge protection.