SIEMENS
5/48
Siemens IK PI · 2015
IO-Link
SIRIUS 3UG48 monitoring relays for stand-alone installation for IO-Link
Current monitoring
5
■
Overview
SIRIUS 3UG4822 monitoring relays
The relays monitor single-phase AC (rms value) and DC currents
against the set limit value for overshoot and undershoot.
■
Benefits
•
Variably adjustable to overshoot, undershoot or range moni-
toring
•
Freely configurable delay times and RESET
response
•
Width 22.5 mm
•
Display and transmission of actual value and status messages
to controller
•
All versions with removable terminals
•
All versions with screw or spring-type terminals
■
Application
•
Overcurrent and undercurrent monitoring
•
Monitoring the functionality of electrical
loads
•
Monitoring for broken conductors
■
Selection and ordering data
•
Adjustable via IO-Link and locally, with illuminated LCD
•
Power supply with 24 V DC via IO-Link or
external auxiliary voltage
•
Adjustable converter factor to display the measured primary
current when external current transformer used
•
Auto or Manual RESET
•
Open or closed-circuit principle
•
1 CO contact, 1 semiconductor output (in SIO mode)
For accessories see page 5/53.
For AC currents
I
> 10 A it is possible to use commercially
available current transformers, e.g. the Siemens 4NC current
transformer, as accessories, see Catalog LV 10, "Low-Voltage
Power Distribution and Electrical Installation Technology".
Measuring range
Adjustable
hysteresis
ON-delay time
adjustable
onDel
Tripping delay time
separately adjustable
U
▲
Del/
U
▼
Del
Screw
terminals
Spring-type
terminals
AC/DC A
A
s
s
Article No.
Article No.
Monitoring of current for overshooting and undershooting
0.05 … 10
0.01 ... 5
0.1 … 999.9
0.1 … 999.9
3UG4822-1AA40
3UG4822-2AA40
3UG4822-1AA40
3UG4822-2AA40
© Siemens AG 2014