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DEM021MA |
| THREE
PHASE FOUR WIRE ELECTRONIC DIN-RAIL ACTIVE
ENERGY METER |
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Application |
Model
DEM021MA two phase three wire electronic DIN
rail active energy meter is a kind of new
style two phase three wire active energy
meter, it adopt micro-electronics technique,
and imported large scale integrate circuit,
use advanced technique of digital and SMT
techniques, etc. The meter completely accord
with relevant technical requirements of
class 1 three phase active energy meter
stipulated in international standard IEC
62053-21. It can accurate and directly
measure 50Hz or 60Hz active energy
consumption from two phase three wire AC
electricity net. This meter has seven digits
LCD display shows the active energy
consumption. And there is a maintenance-free
lithium batteries in it, it use for display
power cut reading. It has following
features: good reliability, small volume,
light weight, specious nice appearance,
convenient installation, etc. This meter has
already got the patent certificate from
China State Intellectual Property Office at
present. Patent certificate NO. ZL 2006 3
0107349.1, any other country patent
certificate are in assessing.
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Functions and
features |
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35mm standard DIN rail installation,
complying with standard DIN EN50022. Or
front board installed (mounting holes center
distance 63 mm), users can choose any one by
themselves.
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Ten pole width (Modulus 12.5mm), complying
with standard JB/T7121-1993.
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Seven digits display LCD, standard
configuration 6+1 digits display
(999999.1kWh). May select 5+2 digits display
(Please
specified when ordering).
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There is a maintenance-free lithium
batteries in it, it use for displaying power
cut reading
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There are a polarity port of pulse output
passive closed and a nonpolarity port of
pulse output passive distant (the output
rate is 10 or 100imp/KWh, can select). And
contact with all kind of AMR system conveniently. Complying with standard IEC
62053-31 and DIN 43864.
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Four LED instructions respectively power
supply state (phase voltage L1 & L3) and
signal of closed energy impulse and distant
energy impulse.
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Automatic detection the direction of the
flow of load current. And Instructions on
individual LED
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Single direction two components measure two
phase three wire active energy consumption.
It is nothing with direction of the flow of
load current. Complying with standard IEC
62053-21.
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Standard configuration type S wiring (Inlet
from bottom, outlet from top) for direct
connect operation, we can also choose
another type of wiring, and use CT (Product
Configuration code is LA) and PT & CT
(Product Configuration code is KA) for
operation.
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Standard configuration short terminals
cover, may select extension terminals cover,
in order to protect to use safety. (Product
Configuration code is MD). |
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Technical
parameters |
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Model |
Accuracy |
Reference
voltage (V) |
Current
specifications (A) |
Starting
current (A) |
Insulation
performance |
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DEM021MA |
Class 1 |
2 x 127
2 x 230 |
5(30)
10(60)
20(100) |
0.02
0.04
0.08 |
AC voltage 4kV for 1 minute,
1.2/50us waveform
impulse voltage 6kV | |
| *If you need
different reference voltage or current
specification, please advisory our sales. |
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Outer and mount
dimension |
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Wiring diagram
(Type S) |
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Terminal |
Note |
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L1 |
L1 phase line |
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L2 |
Don't use |
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L3 |
L3 phase line |
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N |
Neutral line |
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7 and 8 |
Port of pulse output passive closed |
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3 and 4 |
Port of pulse output passive distant |
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