N43 tinklo parametrų skaitiklis

Measured Quantities and Measuring Ranges
Measured value		Measuring range	L1	L2	L3	∑	Basic error
Current In 1 A/5 A	1 A ~ 5 A ~ 63 A ~	0,01...1,20 A lub kA * 0,05...6,00 A lub kA * 0,10...76,0A~	♦	♦	♦		±0,5 %
Voltage L-N	57,7 V ~ 230 V ~ 290 V ~	2,80 ...70,0 V lub kV* 10,0 ... 276 V~ 14,0 ... 348 V~	♦	♦	♦		±0,5%.
Voltage L-L	100 V 400 V 500 V	5,00 ... 120 V lub kV* 20,0 ... 480 V~ 25,0 ... 600 V~	♦	♦	♦		±1%
Frequency		45,0...65,0 Hz				♦	±0,5%
Active power /import or export/		0,00 ... 999 lub 0,00 ... 9999999 W, kW or MW	♦	♦	♦	♦	±1%
Reactive power /capacitive or inductive indication/		0,00 ... 999 lub 0,00 ... 9999999 VAR, kVAR lub MVAR	♦	♦	♦	♦	±1%
Apparent power		0,00 ... 999 lub 0,00 ... 999999,9 VA, kVA lub MVA	♦	♦	♦	♦	±1%
Active energy /import or export/		0,0 ... 999999,9 kWh lub MWh				♦	±1% zak.
Reactive energy /capacitive or inductive indication/		0,0 .. 999999,9 kVARh lub MVARh				♦	±1% zak.
Power factor PF		-1 ... 0 ... 1	♦	♦	♦	♦	±1% zak.
Tangens φ		+1,2 ... 1 ...1,2	♦	♦	♦	♦	±1% zak.

* transformer converter ratio
- tr_U ratio (ratio of the voltage transformer: 0.1…4000.0)
- tr_I (ratio of the current transformer: 1…10000)

Outputs
Kind of output	Properties
Relay output	• 3x programmable relay output, normally open voltageless contacts, load capacity 250 V~/0.5 A~
Pulse output	• 1 x pulse output, OC type, passive (for monitoring of active energy)

Digital interface
Type of interface	Transmission protocol	Mode	Rate
RS-485 Modbus	MODBUS RTU	8N2, 8E1, 8O1, 8N1	4,8; 9,6; 19,2; 38,4  kbit/s
USB 1.1/ 2.0	MODBUS RTU	8N21	9,6 kbit/s

External Features
Readout field	LCD screen, dedicated, monochromatic with backlit
Weight	< 0,3 kg
Overall dimensions	105 X 110 X 60 mm
Protection grade (acc. to EN 60529)	from terminal side: IP20

Rated Operating Conditions
Supply voltage	85...253 V a.c., 90...300 V d.c 20...40 V a.c., 20...60 V d.c.
Temperature	ambient: -25...23...55°C
Relative humidity	25...95%	inadmissible condensation
Operating position	any
External magnetic field	0...40...400 A/m
Short duration overload	voltage input (5 sec): 2Un	current inputs: - 10 In (5 sec) for current transformer connection - 1000 A (20 ms) for direct connection 63 A
Power consumption	- in the supply circuit ≤6 VA, - in the voltage and current circuits ≤0,05 VA

Safety and Compatibility Requirements
Electromagnetic compatibility	noise immunity	acc. to EN 61000-6-2
	noise emissions	acc. to EN 61000-6-4
Safety requirements		acc. to EN 61010-1

 

EXAMPLE OF ORDER:
The code N43 - 2 2 1 00 E 0 means:
N43 - meter of network parameters of N43 type
2- current input: 63 A
2- input voltage (phase/phase-to-phase) Un =
3 x 230 V/ 400 V
1- auxiliary supply: 85...253 V a.c., 90...300 V d.c.
00- standard version
E- all descriptions and user's manual in English
0- without extra quality requirements.