Specifications of 3UG5618-2CR20 digital monitoring relay
product function | Phase monitoring relay |
display version LED | No |
design of the display | LCD |
insulation voltage for overvoltage category III according to IEC 60664 | |
● with degree of pollution 3 rated value | 690 V |
degree of pollution | 3 |
type of voltage | |
● for monitoring | AC |
● of the control supply voltage | AC |
surge voltage resistance rated value | 6 kV |
protection class IP | IP20 |
shock resistance according to IEC 60068-2-27 | sinusoidal half-wave 15g / 11 ms |
vibration resistance according to IEC 60068-2-6 | 1 … 6 Hz: 15 mm, 6 … 500 Hz: 2g |
mechanical service life (switching cycles) typical | 10 000 000 |
electrical endurance (switching cycles) at AC-15 at 230 V typical | 100 000 |
thermal current of the switching element with contacts maximum | 5 A |
reference code according to IEC 81346-2 | K |
relative repeat accuracy | 1 % |
Substance Prohibitance (Date) | 05/01/2012 |
Product Function | |
product function | |
● undervoltage detection | Yes |
● overvoltage detection | Yes |
● phase sequence recognition | Yes |
● phase failure detection | Yes |
● asymmetry detection | Yes |
● overvoltage detection 3 phase | Yes |
● undervoltage detection 3 phases | Yes |
● voltage window recognition 3 phase | Yes |
● adjustable open/closed-circuit current principle | No |
● auto-RESET | Yes |
Control circuit/ Control | |
control supply voltage at AC | |
● at 50 Hz rated value | 160 … 690 V |
● at 60 Hz rated value | 160 … 690 V |
operating range factor control supply voltage rated value at AC at 50 Hz | |
● initial value | 1 |
● full-scale value | 1 |
operating range factor control supply voltage rated value at AC at 60 Hz | |
● initial value | 1 |
● full-scale value | 1 |
Measuring circuit | |
measurable voltage at AC | 690 … 160 V |
adjustable response delay time | |
● with lower or upper limit violation | 0.1 … 20 s |
accuracy of digital display | +/-1 digit |
Precision | |
relative metering precision | 5 % |
Auxiliary circuit | |
number of NC contacts delayed switching | 0 |
number of NO contacts delayed switching | 0 |
number of CO contacts delayed switching | 2 |
operating frequency with 3RT2 contactor maximum | 5 000 1/h |
Main circuit | |
number of poles for main current circuit | 3 |
ampacity of the output relay at AC-15 | |
● at 250 V at 50/60 Hz | 3 A |
● at 400 V at 50/60 Hz | 3 A |
ampacity of the output relay at DC-13 | |
● at 24 V | 1 A |
● at 125 V | 0.2 A |
● at 250 V | 0.1 A |
operational current at 17 V minimum | 5 mA |
continuous current of the DIAZED fuse link of the output relay | 4 A |
Electromagnetic compatibility | |
conducted interference | |
● due to burst according to IEC 61000-4-4 | 2 kV |
● due to conductor-earth surge according to IEC 61000-4-5 | 2 kV |
● due to conductor-conductor surge according to IEC 61000-4-5 | 1 kV |
field-based interference according to IEC 61000-4-3 | 10 V/m |
electrostatic discharge according to IEC 61000-4-2 | 6 kV contact discharge / 8 kV air discharge |