Data Sheet

Three-phase
Multifunction Dual tariff energy meters
Bi-directional, MID certified, two SO outputs
with backlit LCD display for 3 or 4 wire systems
Infra-red communications port
Type 7E.78.8.400.0112
Direct connection up to 80A, dual tariff
Type 7E.86.8.400.0112
6 A direct connection, up to 50 000A using
current transformer, dual tariff
• Display of total or partial (resettable) energy
consumption: kWh, kVAh or kvarh - for both T1
and T2 tariffs - for the total system or per phase
• Scroll to view the following instantaneous
values: V, A, PF, kW, kVA, kvar, Hz and direction
of power flow
• Fault indication in the event of loss or incorrect
phase sequence
• 8 digit backlit LCD display
• Active power accuracy Class B according to
EN50470-3
• Reactive power acurracy Class 2 according to
EN62053-23
• Two programmable** SO pulse outputs for
remote energy monitoring according to
EN62053-31
• Infra-red communications port for data
exchange with various field protocols, using
optional modules
• Protection category II
• Accessories: sealable tamperproof terminal
cover
• 35mm rail (EN60715) mount
* Minimum CT ratio: 1:1
Maximum CT ratio: 10 000:1
CT full scale programmable: 1 or 5A
** SO output can be associated with kWh, kVAh
or kvarh.
7E.78.8.400.0112 7E.86.8.400.0112
• Reference current 5A (80A Maximum)
• Three-phase systems - 3 or 4 wire
• Dual tariff
• MID certified
• Reference current 1A (6A Maximum)
• Three-phase systems - 3 or 4 wire
• Usable with current transformer*
• Programmable CT secondary*
• Dual tariff
• MID certified
3 x 230/400 V
AC 50/60 Hz
SO2
SO1
+24V
+24V
R
T1,T2
=Tariff switching equipment
R
T1,T2
=Tariff switching equipment
3 x 230/400 V
AC 50/60 Hz
SO2
SO1
+24V
+24V
For outline drawing see page 15
Specification
Reference/Maximum current I
n
/I
max
A 5/80 1/6
Starting current I
st
A 0.02 0.002
Minimum measured current I
min
A 0.25 0.01
Current range (within accuracy class) A 0.5…80 0.05…6
Maximum peak current A 2400 (10ms) 120 (500ms)
Supply (& monitored) voltage U
N
VAC 3 x 230/400…3 x 240/415 3 x 230/400…3 x 240/415
Operating range (0.8…1.2)U
N
(0.8…1.2)U
N
Frequency Hz 50/60 50/60
Power consumption per phase W/VA ≤0.5/7.5 ≤0.5/7.5
CT burden (per phase) VA — 0.04
Display Eight digit counter - backlit LCD display
Max. totalising count/Min. increment kWh 999999.99/0.01 999 999.99/0.01
LED pulses per kWh 1000 10 000
LED pulse length ms 10±0.5 10±0.5
Output specification (SO+/SO–)
Number/Type 2 opto-isolated outputs 2 opto-isolated outputs
Maximum values
(conforming to EN62053-31) VAC-DC/mA 250/100 250/100
Pulses per kWh** Imp/kWh** 100 See table page 13
Pulse length ms 50 ± 2 50 ± 2
Maximum cable length (30V/20mA) m 1000 1000
Tariff input - opto-isolated
Voltage range V AC/DC 80…275 80…275
Technical data
Accuracy class EN50470-3 (MID) B B
Ambient temperature °C –25…+55 °C –25…+55 °C
Protective class II II
Protection category: Housing/terminals IP50/IP20 IP50/IP20
Approvals (according to type)
V-2018, www.findernet.com
6
E
7E SERIES
Energy meters
7E
SERIES