Bender ISOMETER IRDH375 - Page 35

Connection
36
IRDH375_D00124_05_M_XXEN/01.2020
15
Connection for external coupling devices (Extension of the nominal
voltage range U
n
)
16
Separate connection of and KE to PE
*
The terminal pairs 2, 3 and 4 must be wired so that they are
galvanically isolated and must not have a connection to PE.