Accessories
13.3 Accessories for 3UG458. insulation monitoring relays.
3UG4 / 3RR2 monitoring relays
Manual, 05/2016, NEB927043002000/RS-AC/004
353
13.3.2
3UG4983 upstream module for the 3UG4583 monitoring relay
Description
The 3UG4983-1A passive upstream module is used for extending the measuring range of
the 3UG4583 insulation monitoring relays. The upstream module enables monitoring of the
insulation resistance in systems with rated system voltages of up to 690 V AC (15 to 400 Hz)
and 1000 V DC in accordance with IEC 61557-8. The device does not require any rated
control supply voltage for operation, and it is connected between the 3UG4583 insulation
monitoring relay and the system to be monitored.
Note
If the continuously present voltage is greater than 600 V, a minimum gap of 10 mm must be
maintained between the neighboring devices.
Front view/terminal labeling 3UG4983
Front view
Description
Position digits
①
Terminal block:
Screw-type connections are possible.
②
Device article number
③
Circuit diagram
④
Label
Terminal labels
VL+
Measuring signal input, connection to the system
VL-
Measuring signal input, connection to the system
VS
Connection to 3UG4583 terminal VS
VE
Connection to 3UG4583 terminal
V
Measuring signal input, ground connection
L+
Connection to 3UG4583 terminal L+
L-
Connection to 3UG4583 terminal L-
V1+
Connection to 3UG4583 terminal V1+
V1-
Connection to 3UG4583 terminal V1-