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DEM321CT |
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PHASE THREE WIRE ELECTRONIC FRONT BOARD
INSTALLED ACTIVE ENERGY METER |
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Application |
Model
DEM321CT three phase three wire electronic
front board installed active energy meter is
a kind of new style three 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 three
phase three wire AC electricity net, it is
use for setting indoor or out door, 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.
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Functions and
features |
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Front board three fixed installation, up and
down mounting holes center distance is
198-212 mm, users can choose any one by
themselves.
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6 digits display (999999KWh) by step motor
type impulse register.
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Standard configuration only a polarity port
of pulse output passive, may select add a
nonpolarity port of pulse output passive
distant
(Product Configuration code is DH). And
contact with all kind of AMR system
conveniently,
Complying with standard IEC 62053-31 and
DIN 43864.
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Three LED instructions power supply state
(L12 & L32) and signal of energy impulse.
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Standard configuration don’t detection
direction of the flow of load current. May
select automatic detection the direction of
the flow of
load current. And instructions on individual
LED. (Please specified when ordering)
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Single direction two components measure
three 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 direct connect
operation , type 13B wiring, we can also
choose another type of wiring, and use 5+1
digits display
by impulse register, CT (Product
Configuration code is CV) and PT & CT
(Product Configuration code is CX) for
operation, it is type 5B
wiring.
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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 EH). |
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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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DEM321CT |
Class 1 |
3 X 220
3 X 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 13B) |
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Terminal |
Note |
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1 |
Inlet L1 line |
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3 |
Outgoing L1 line |
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4 |
Inlet L2 line |
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6 |
Outgoing L2 line |
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7 |
Inlet L3 line |
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9 |
Outgoing L3 line |
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10 |
Don't use |
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11 |
Don't use |
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20 and 21 |
Port of pulse output passive |
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