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Abbreviations
Cl.
Accuracy class
D0
Optical interface as per EN 62056-21
DIN
Deutsches Institut für Normung e.V.
(German Standardisation Institute)
DC
Direct connected
EN
European Norm
EVU
Utility company
I
Current
IEC
International Electrotechnical Commission
IP
Ingress Protection (protection classification)
IR
Infrared
L1, L2, L3
External conductor
LC
Liquid Crystal
LCD
Liquid Crystal Display
LED
Light emitting diode
MP
Measuring period (of the maximum)
MPA
Output signal of the current measuring period
N
Neutral conductor
OBIS
Object Identification System
OVC
Overvoltage category
P
Active power
+P
Positive active power (customer obtains from utility company)
-P
Negative active power (customer supplies to utility company)
Q
Reactive power
+Q
Positive reactive power
-Q
Negative reactive power
R
AB
Output pulses of the reactive energy
R
AW
Output pulses of the active energy
RP
Measuring period of the load profile
RTC
Real Time Clock
SH
Selective main line protection
TAB
Technical Connection Rules
U
Voltage
UC
Utilisation category