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DEM321DT |
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PHASE FOUR WIRE ELECTRONIC FRONT BOARD
INSTALLED ACTIVE ENERGY METER |
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Application |
Model
DEM321DT three phase four wire electronic
front board installed 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 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 DI). 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 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 three components measure
three phase four wire active energy
consumption. It is nothing with direction of
the energy
of load current. Complying with standard IEC
62053-21.
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Standard configuration direct connect
operation , type 16B wiring, we can also
choose another type of wiring, and use 5+1
digits display
by impulse register, CT (Product
Configuration code is DV) and PT & CT
(Product Configuration code is DX) for
operation, it is type 48B
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 EI). |
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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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DEM321DT |
Class 1 |
3X127/220
3X230/400 |
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 16B) |
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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 |
Inlet neutral line |
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11 |
Outgoing neutral line |
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20 and 21 |
Port of pulse output passive |
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