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Lumel - ND10 power network meter

  • Interface RS485 Modbus Slave (option)
  • LCD display 3.5”
  • Pulse output for active energy
  • 2 alarm outputs
Measured quantities and measuring ranges:
Measured valueIndication rangeMeasuring rangeL1L2L3ΣBasic error 
Current in1 A
5 A
0.00...1.5 kA
0.00...60 kA
0,005...1,2000 A~
0,025...6,000 A~
 ±0.2 % r 
Voltage L-N57.7 V
230 V
290 V
0.0...230.8 kV
0.0...1.012 MV
0.0...1.200 MV
50...64 V~
195...254 V~
246...300 V~
 ±0.2% mv 
Voltage L-L100 V
400 V
500 V
0.0...440 kV
0.0...1.752 MV
0.0...2.000 MV
85...110 V~
340...440 V~
425...520V~
 ±0.5% mv 
Frequency47.0...63 Hz47,0...63,0 Hz ±0.2% mv 
Active power-9999 MW...0.00 W...9999 MW-1,52 kW...1,0 W...1,52 kW±0.5% r 
Reactive power-9999 Mvar ...0.00 var ... 9999 Mvar-1.52 kvar...1.0 var...1.52 kvar±0.5% r 
Apparent power0.00 VA ... 9999 MVA1.0 VA...1.52 kVA±0.5% r 
Power factor PF-1 ... 0... 1-1...0...1±1% r 
Tangent φ-1.2...0...1.2-1.2...0...1.2±1% r 
Imported active energy0 ... 99 999 999.9 kWh    ±0,5% r 
Exported active energy0 ... 99 999 999.9 kWh    ±0.5% r 
Inductive reactive energy0 ... 99 999 999.9 kvarh    ±0.5% r 
Reactive capacitive energy0 ... 99 999 999.9 kvarh    ±0.5% r 
THD0 ... 100%0 ... 100% ±5% r 
r - of the range
mv - of the measured range

Outputs 
Output typeProperties 
Relay output2 relays, normally open voltageless contacts,
load capacity 250 V~/0,5 A~
 
Pulse output of active energy1 OC type (NPN), passive class A acc. to EN 62053-31,
supply voltage 18...27 V, current 10...27 mA
 
Digital Interface
Interface typeTransmission protocolModeBaud rate 
RS-485MODBUS RTU8N2, 8E1, 8O1, 8N14.8; 9.6; 19.2; 38.4 kbit/s 
External Features 
Readout fieldLCD 3.5” screen, specialized,
monochromatic with backlit
  
Weight< 0.3 kg  
Overall dimensions96 x 96 x 77 mmpanel cut-out: 92+0,6 x 92+0,6 mm 
Protection on grade (acc. to EN 60529)from frontal side: IP65from terminal side: IP20 
Rated Operating Conditions 
Supply voltage /from measurement
circuit of phase L3/
50...64 V a.c. , 195...253 V a.c.,
246...300 V a.c.; 47...63 Hz
power consumption < 3 VA 
Temperatureambient: -20...23...55°Cstorage: -30...70°C 
Relative humidity25...95%inadmissible condensation 
Operating positionany  
External magnetic field40...400 A/m  
Short duration overload (5 s)voltage input: 2 Uncurrent input: 10 In 
Safety and Compatibility Requirements 
Electromagnetic compatibilitynoise immunityacc. to EN 61000-6-2 
noise emissionsacc. to EN 61000-6-4 
Safety requirements acc. to EN 61010-1 
 

Example of Order:
The code: ND10 - 2 2 1 00 E 1 means:
ND10 -meter of network parameters of ND10 type 
2 -current input 5 A 
2 -input voltage 3 x 230/400 V 
1 - with RS485 interface 
00 -standard version 
E -all descriptions and users manual in English 
1 -with extra quality inspection certificate