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DEM021DI |
| THREE
PHASE FOUR WIRE ELECTRONIC DIN-RAIL ACTIVE
ENERGY METER |
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Application |
Model
DEM021DI three phase four wire electronic
DIN rail active energy meter is a kind of
new style three phase four 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 three phase four wire AC
electricity net. It can display total energy
consumption by step motor type
impulse register. 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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Standard configuration 6 digits display
(999999kWh) by step motor type impulse
register. May select 7 digits display by
impulse register (Product Configuration code
is DK).
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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 100 imp/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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Five LED instructions respectively every
power supply state 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
(signal of closed energy impulse is green
when working, that is meaning the direction
of the flow of load current reverse).
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Single direction three components measure
three phase four 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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May select two components measure three
phase three wire active energy (Product
Configuration code is DH) or two phase three
wire active energy (Product Configuration
code is DG)
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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 5+1 digits
display by impulse register, CT (Product
Configuration code is CI) and PT & CT
(Product Configuration code is BI) for
operation.
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Standard configuration extension terminals
cover, in order to protect to use safety,
may select short terminals cover. (Product
Configuration code is DF). |
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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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DEM021DI |
Class 1 |
3 x 127/220
3 x 230/400 |
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 |
L2 phase line |
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L3 |
L3 phase line |
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N |
Neutral line |
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7 and8 |
Port of pulse output passive closed |
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15 and 16 |
Port of pulse output passive distant |
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