User’s Manual 7M
29
MEASURED VALUES
ACCURACY CLASS
ACTIVE ENERGY
class 1 EN 62053-21
class B EN 50470-3
±1.5% from I
min
to I
tr
±1% from I
tr
to I
max
REACTIVE ENERGY
class 2 EN 62053-23
±2.5% from I
min
to I
tr
±2% from I
tr
to I
max
VOLTAGE
±1% of measured value
CURRENT
±1% of I
ref
from I
st
to I
ref
±1% of measured value from I
ref
to I
max
ACTIVE POWER
±1% of nominal power (U
n
* I
ref
) from I
st
to I
ref
±1% of measured value from I
ref
to I
max
REACTIVE, APPARENT POWER
±2% of nominal power from I
st
to I
ref
±2% of measured value from I
ref
to I
max
FREQUENCY
±0.5% of measured value
TECHNICAL DATA
In following chapter all technical data regarding operation of a three-phase electrical energy meter is presented.
• ACCURACY
• MECHANICAL CHARACTERISTICS OF INPUT
• ELECTRICAL CHARACTERISTICS OF INPUT
• SAFETY AND AMBIENT CONDITIONS
• EU DIRECTIVES CONFORMITY
• DIMENSIONS
ACCURACY
MECHANICAL CHARACTERISTICS OF INPUT
Rail mounting according DIN EN 60715. In case of using the stranded wire, the ferrule must be attached before the mounting.
TERMINALS
MAX. CONDUCTOR CROSS-SECTIONS
MAIN INPUTS
Contacts capacitiveacity:
1.5 mm
2
... 25 (16) mm
2
Connection screws:
M5
Max torque:
3.5 Nm (PH2)
Length of removed isolation:
10 mm
OPTIONAL MODULES
Contacts capacitiveacity:
0.5 mm
2
... 1.5 mm
2
Connection screws:
M3
Max torque:
0.6 Nm
Length or removed isolation:
8 mm