User Manual

3UG4501 filling level monitoring relay
5.6 Circuit diagrams
3UG4 / 3RR2 monitoring relays
82 Manual, 02/2013, NEB927043002000/RS-AA/002
Inflow control
A1 (+)
A2 (–)
M
11
12 14
K1
AC/+U
AC/0V
3UG45 01
Max Min
K1
81
'HOD\5VHQV
Two-step control
A1 (+)
A2 (–)
M
11
12 14
K1
AC/+U
AC/0V
3UG45 01
Max Min
K1
81
'HOD\5VHQV
One-point closed-loop control