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DEM021DH |
| THREE PHASE FOUR WIRE ELECTRONIC DIN-RAIL ACTIVE ENERGY METER |
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| Application |
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DEM021DH three phase three wire electronic DIN rail 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 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 CK).
¡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 Four LED instructions respectively power supply state (line voltage L12 & L32) 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 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.
¡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 CH) and PT & CT (Product Configuration code is BH) for operation.
¡ñ Standard configuration extension terminals cover, in order to protect to use safety, may select short terminals cover. (Product Configuration code is DE). |
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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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DEM021DH |
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 |
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| *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 |
| L1 |
L1 phase line |
| L2 |
L2 phase line |
| L3 |
L3 phase line |
| N |
Don't use |
| 7 and 8 |
Port of pulse output passive closed |
| 15 and 16 |
Port of pulse output passive distant | | | |
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