Data Sheet

Ordering information - Energy meter
Example: 3-phase energy meter for current transformer operation (6A/400 V AC), with MID certification, Class B accuracy, for 35 mm rail (EN 60715)
mounting. Supplied accessories: Tamper-proof lead sealed cover as accessory.
7 E . 8 6 . 8 . 4 0 0 . 0 1 1 2
Series
Function
6 = 1-phase, backlit display
7 = 3-phase, backlit display, direct connection
8 = 3-phase, backlit display,
for current transformer operation
Current
4 = 40A
6 = 6A (up to 50 000 A, using 7E.86 and CT)
8 = 80 A
Supply version
8 = AC50/60Hz
Special version
0 = Standard
Option
0 = SO pulse output
1 = Infra-red comms. port
+ two SO pulse outputs
2 = RS485 Modbus integrated interface
+ SO pulse output
3 = M-Bus integrated interface +
SO pulse output
4 = Ethernet integrated interface plus SO
pulse output
Supply voltage
230 = 230V AC 50/60Hz
400 = 3x230/415VAC 50/60Hz
Special version
0 = Single tariff
1 = kWh only (0001)
2 = Dual tariff
3 = Panel mounting
Version
0 = Standard
1 = Conforms to MID directive
Table 1
Imp/kWh* CT ratio
1000 1…4
200 5…24
40 25…124
8 125…624
1 625…3124
0.1 3125…10 000
*Imp/kWh, Imp/kvarh, Imp/kVAh
Available versions
Infra-red comms. port for use with
communication modules
7E.78.8.400.0112
7E.86.8.400.0112
Modbus
7E.64.8.230.0210
7E.78.8.400.0212
7E.86.8.400.0212
M-Bus
7E.64.8.230.0310
7E.78.8.400.0312
7E.86.8.400.0312
Ethernet
7E.78.8.400.0410
7E.86.8.400.0410
SO only
7E.64.8.230.0001
7E.64.8.230.0010
Technical data
Insulation 7E.64.8.230.0xxx 7E.78.8.400.0xxx 7E.86.8.400.0xxx
Insulation rated voltage V 250 250 250
Insulation between active parts and SO+/SO– terminals kV(1.2/50μs)
6
between supply and Modbus, M-Bus terminal kV(1.2/50μs)
6
between adjacent phases kV(1.2/50 µs) n/a
Insulation between active parts and SO+/SO– terminals VAC 4000
between supply and Modbus, M-Bus terminal VAC 4000
between adjacent phases VAC n/a
Protection class II
EMC Specification according to 61000-4-(2/3/4) 7E.64.8.230.0xxx 7E.78.8.400.0xxx 7E.86.8.400.0xxx
Electrostatic discharge contact discharge 8kV
air discharge 15kV
Radio frequency Electromagnetic field (80…2000)MHz 30 V/m
Fast Transients (burst) (5-50ns, 5kHz) on Supply terminals 4kV
on SO+/SO– terminals 2kV
Modbus, M-Bus terminal 2kV
Surge (1.2/50μs) on Supply terminals 4kV
on SO+/SO– terminals 1kV
Modbus, M-Bus terminal 1kV
Other data 7E.64.8.230.0xxx 7E.78.8.400.0xxx 7E.86.8.400.0xxx
Pollution degree 2
Vibration resistance EN60068-2-6 EN60068-2-6 EN60068-2-6
Shock resistance EN60068-2-27 EN60068-2-27 EN60068-2-27
Power lost to the environment Max value per phase 0.5W/1.5 VA
1W/7.5VA 1W/7.5VA
CT burden — — 0.04 VA/per phase
Supply terminals 7E.64.8.230.0xxx 7E.78.8.400.0xxx 7E.86.8.400.0xxx
Max. wire size
solid
cable
stranded
cable
solid
cable
stranded
cable
solid
cable
stranded
cable
mm
2
max 6 1.5…6 max 35 1.5…35 max 6 1.5…6
AWG — — — — — —
Screw torque for I
max
Nm 1.5 1.5 2 2 1.5 1.5
SO+/SO– terminals, RS485 Modbus, M-Bus 7E.64.8.230.0xxx 7E.78.8.400.0xxx 7E.86.8.400.0xxx
Max. wire size
solid
cable
stranded
cable
solid
cable
stranded
cable
solid
cable
stranded
cable
mm
2
max 2.5 0.14…2.5 max 2.5 0.14…2.5 max 2.5 0.14…2.5
AWG — — — — — —
Screw torque Nm 0.5 0.5 0.5 0.5 0.5 0.5
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13
E
7E
SERIES
7E SERIES
Energy meters