product brand nameSIRIUS
product designationCurrent monitoring relay with digital setting
product type designation3UG4
General technical data
product functionCurrent monitoring relay
design of the displayLCD
with degree of pollution 3 rated value690 V
degree of pollution3
type of voltage of the operating voltageAC/DC
surge voltage resistance rated value4 kV
between auxiliary and auxiliary circuit300 V
between control and auxiliary circuit300 V
shock resistance according to IEC 60068-2-27sinusoidal half-wave 15 g / 11 ms
vibration resistance according to IEC 60068-2-61 ... 6 Hz: 15 mm, 6 ... 500 Hz: 2 g
mechanical service life (operating cycles) typical10 000 000
electrical endurance (operating cycles) at AC-15 at 230 V typical100 000
thermal current of the switching element with contacts maximum5 A
reference code according to IEC 81346-2K
relative repeat accuracy1 %
Substance Prohibitance (day/month/year)05/01/2012
SVHC substance nameLead CAS-No. 7439-92-1 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol CAS-No. 119-47-1
Net Weight0.13 kg
Product Function
undervoltage detectionNo
overvoltage detectionNo
phase sequence recognitionNo
phase failure detectionNo
voltage monitoringNo
current monitoringYes
overcurrent detection 1 phaseYes
overcurrent detection 3 phaseNo
undercurrent detection 1 phaseYes
undercurrent detection 3 phasesNo
overcurrent detection DCYes
undercurrent detection DCYes
current window recognition DCYes
voltage window recognition 1 phaseNo
voltage window recognition 3 phaseNo
adjustable open/closed-circuit current principleYes
external resetYes
auto-RESETYes
Control circuit/ Control
at 50 Hz rated value24 ... 240 V
at 60 Hz rated value24 ... 240 V
control supply voltage at DC rated value24 ... 240 V
Supply voltage
type of voltage of the supply voltageAC/DC
at 50 Hz20.4 ... 264 V
at 60 Hz20.4 ... 264 V
supply voltage 1 at DC20.4 ... 264 V
Measuring circuit
type of current for monitoringAC/DC
measurable current0 ... 0.6 A
measurable line frequency40 ... 500 Hz
10 ... 0.5 A
20 ... 0.5 A
when starting0.1 ... 20 s
with lower or upper limit violation0.1 ... 20 s
adjustable switching hysteresis for measured current value0.1 ... 250 mA
buffering time in the event of power failure minimum10 ms
accuracy of digital display+/-1 digit
relative temperature-related measurement deviation5 %
internal resistance of the measuring circuit500 mΩ
Precision
relative metering precision5 %
temperature drift per °C0.1 %/°C
Communication/ Protocol
protocol is supported IO-Link protocolNo
Auxiliary circuit
number of NC contacts delayed switching0
number of NO contacts delayed switching0
delayed switching1
operating frequency with 3RT2 contactor maximum5 000 1/h
Main circuit
number of poles for main current circuit1
operating voltage rated value24 ... 240 V
at 250 V at 50/60 Hz3 A
at 400 V at 50/60 Hz3 A
at 24 V1 A
at 125 V0.2 A
at 250 V0.1 A
operational current at 17 V minimum0 A
continuous current of the DIAZED fuse link of the output relay4 A
Electromagnetic compatibility
due to burst according to IEC 61000-4-42 kV
due to conductor-earth surge according to IEC 61000-4-52 kV
due to conductor-conductor surge according to IEC 61000-4-51 kV
field-based interference according to IEC 61000-4-310 V/m
electrostatic discharge according to IEC 61000-4-26 kV contact discharge / 8 kV air discharge
Galvanic isolation
design of the electrical isolationProtective separation
between input and outputYes
between the outputsYes
between the voltage supply and other circuitsYes
Safety related data
product function suitable for safety functionNo
Electrical Safety
protection class IP on the front according to IEC 60529IP20
Connections/ Terminals
product component removable terminal for main circuitYes
product component removable terminal for auxiliary and control circuitYes
type of electrical connectionspring-loaded terminals
for main current circuitspring-loaded terminals
for auxiliary and control circuitspring-loaded terminals
solid2x (0.25 ... 1.5 mm²)
finely stranded with core end processing2 x (0.25 ... 1.5 mm²)
finely stranded without core end processing2x (0.25 ... 1.5 mm²)
for AWG cables solid2x (24 ... 16)
for AWG cables stranded2x (24 ... 16)
solid0.25 ... 1.5 mm²
finely stranded with core end processing0.25 ... 1.5 mm²
finely stranded without core end processing0.25 ... 1.5 mm²
solid24 ... 16
stranded24 ... 16
Installation/ mounting/ dimensions
mounting positionany
fastening methodsnap-on mounting
height94 mm
width22.5 mm
depth91 mm
— forwards0 mm
— backwards0 mm
— upwards0 mm
— downwards0 mm
— at the side0 mm
— forwards0 mm
— backwards0 mm
— upwards0 mm
— at the side0 mm
— downwards0 mm
— forwards0 mm
— backwards0 mm
— upwards0 mm
— downwards0 mm
— at the side0 mm
Ambient conditions
installation altitude at height above sea level maximum2 000 m
during operation-25 ... +60 °C
during storage-40 ... +85 °C
during transport-40 ... +85 °C