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DEM021DF |
| THREE
PHASE FOUR WIRE ELECTRONIC DIN-RAIL ACTIVE
ENERGY METER |
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Application |
Model
DEM021DF 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 |
¡ñ
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.
¡ñ
Ten pole width (Modulus 12.5mm), complying
with standard JB/T7121-1993.
¡ñ
Standard configuration 6 digits display
(999999kWh) by step motor type impulse
register. May select 7 digits display by
impulse register (Product Configuration code
is BJ).
¡ñ 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.
¡ñ Five LED
instructions respectively every power supply
state and signal of closed energy impulse
and distant energy impulse.
¡ñ 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).
¡ñ 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.
¡ñ May select two
components measure three phase three wire
active energy (Product Configuration code is
DE) or two phase three wire active energy
(Product Configuration code is DD)
¡ñ 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 CF) and PT & CT (Product
Configuration code is BF) for operation.
¡ñ Standard
configuration short terminals cover, may
select extension terminals cover, in order
to protect to use safety. (Product
Configuration code is DI). |
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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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DEM021DF |
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 (Inlet from bottom, outlet from
top) |
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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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