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Distribution Digital Power Meter

Accura 2300/2350

Voltage Measurement in the Incoming Feeder  
Measures voltage by sensing voltage in the incoming feeder in industrial control panels  
Display  
Displays the measurement data of Accura 2300, as well as the data collected from Accura 2350 modules on the LCD screen^{1}  
Measurement Parameters  
Voltage

Linetoneutral voltage, Linetoline voltage, Frequency, Fundamental^{2,3}, Harmonics^{2,3}, THD  
Vector diagram(phasor)^{3}, Residual voltage ^{3,4}  
Unbalance according to symmetrical components(zero sequence or negative sequence)^{3}/the NEMA standard^{3}  
Temperature  Measures the temperature of Accura 2300 with a sensor located on the side of the module  
Power Quality  
Dip(Sag), Swell  RMS voltage values measured over 1 cycle(refreshed every half cycle)  
Harmonics  Up to the 50th^{5} order  
Unbalance^{3}  Linetoneutral/Linetoline voltage unbalance, zerosequence/negativesequence unbalance  
Measurement Events  
Type of Event

Dip(Sag), Swell events  
Phase open events^{3}, Fuse fail events, Over temperature events  
Over current events, Over leakage current events  
Over demand current events, Over power events  
Max number of event logs  100  
Internal Communication with Accura 2350 Modules  
Dedicated communication

Sends sampled voltage data to multiple Accura 2350 modules  
Collects measurement data from multiple Accura 2350 modules  
Number of Accura 2350 modules connected to Accura 2300  Max. 15 modules per port^{6}  
Total length^{8} of the 6C telephone^{7} line between Accura 2300 and Accura 2350 modules  Max. 6 m per port  
External Communication with the Host System  
Ethernet

Communicates with the host system using Modbus TCP protocol (100 Mbps / Full duplex)  
Ethernet switching using 2 ports  
Wiring mode: Star, Daisychain, Ring topology(RSTP^{9} supported)  
RS485^{11}  Communicates with the host system using Modbus RTU protocol at 1,200 – 115,200 bps^{10}  
Digital Input/Output^{11}  
Digital input  2 channels, Dry contact  
Digital output  1 channel, Form A relay  
Power Supply  
Power supply voltage^{12}  AC 100 – 240 V, DC 100 – 300 V, CAT II  
Frequency  50/60 Hz 
Power Measurement in Branch Loads/ Main Incoming Feeder  
Measures various power characteristics based on the sampled current data measured in the incoming feeder or branch load, as well as the sampled voltage data received from Accura 2300 module  
Model  Basic Current  
Threephase

Accura 23503P250A105  250 A  
Accura 23503P125A90  125 A  
Accura 23503P100A75  100 A  
Accura 23503P60A75  60 A  
Accura 23503PCT5A75^{1}  CT5 A  
Singlephase

Accura 23501P250A105  250 A  
Accura 23501P125A60  125 A  
Accura 23501P100A50  100 A  
Accura 23501P60A50  60 A  
Accura 23501P50A35  50 A  
Accura 23501P30A35  30 A  
Singlephase singlehole

Accura 23501PSH50A35  50 A  
Accura 23501PSH30A35  30 A  
Measurements  
Current

RMS, Fundamental, THD, TDD, Harmonics^{2}, Residual current^{3}, Leakage current  
Vector diagram(phasor)^{2}, Crest factor^{2}, Kfactor^{2}  
Unbalance according to symmetrical components (zero sequence or negative sequence)^{3}/ the NEMA standard^{3}  
Power  Active power, Reactive power, Apparent power  
Energy  Active energy(Received/Delivered/Net/Sum), Reactive energy ^{2}, Apparent energy ^{2}  
Power factor  Power factor  
Demand  Current/power demand, Peak current/power demand, Predicted current/power demand^{2}  
Internal Communication with Accura 2300  
Dedicated communication

Receives sampled voltage data from Accura 2300  
Sends measurement and operational status data to Accura 2300  
Power Supply  
Power supply voltage  Receives power from Accura 2300 
Power Measurement in Branch Loads/ Main Incoming Feeder  
Measures various power characteristics based on the sampled current data measured in the incoming feeder or branch load, as well as the sampled voltage data received from Accura 2300 module  
Model  Basic Current  
Splitcore threephase

Accura 23503PSC250A105  250 A  
Accura 23503PSC125A90  125 A  
Accura 23503PSC60A75  100 A  
Accura 23503PSCCT5A90^{1}  CT 5 A  
Splitcore singlephase

Accura 23501PSC250A105  250 A  
Accura 23501PSC125A60  125 A  
Accura 23501PSC60A50  60 A  
Splitcore singlephase singlehole^{4}

Accura 23501PSCSH800A  800 A  
Accura 23501PSCSH630A  630 A  
Accura 23501PSCSH400A  400 A  
Measurements  
Current

RMS, Fundamental, THD, TDD, Harmonics^{2}, Residual current^{3}, Leakage current  
Vector diagram(phasor)^{2}, Crest factor^{2}, Kfactor^{2}  
Unbalance according to symmetrical components (zero sequence or negative sequence)^{3}/ the NEMA standard^{3}  
Power  Active power, Reactive power, Apparent power  
Energy  Active energy(Received/Delivered/Net/Sum), Reactive energy ^{2}, Apparent energy ^{2}  
Power factor  Power factor  
Demand  Current/power demand, Peak current/power demand, Predicted current/power demand^{2}  
Internal Communication with Accura 2300  
Dedicated communication

Receives sampled voltage data from Accura 2300  
Sends measurement and operational status data to Accura 2300  
Power Supply  
Power supply voltage  Receives power from Accura 2300 
Model  Description  
Threephase
terminal block 
TM3P105  For use with Accura 23503P250A105 module 
TM3P90  For use with Accura 23503P125A90 module  
TM3P75L  For use with Accura 23503P100A75 module  
TM3P75  For use with Accura 23503P60A75 module  
TM3P105LB^{1}  For use with Accura 23503P250A105 module  
TM3P90LB^{1}  For use with Accura 23503P125A90 module  
TM3P75LLB^{1}  For use with Accura 23503P100A75 module  
TM3P75LB^{1}  For use with Accura 23503P60A75 module  
Singlephase
terminal block 
TM1P105  For use with Accura 23501P250A105 module 
TM1P60  For use with Accura 23501P125A60 module  
TM1P50L  For use with Accura 23501P100A50 module  
TM1P50  For use with Accura 23501P60A50 module  
TM1P105LB^{1}  For use with Accura 23501P250A105 module  
TM1P60LB^{1}  For use with Accura 23501P125A60 module  
TM1P50LLB^{1}  For use with Accura 23501P100A50 module  
TM1P50LB^{1}  For use with Accura 23501P60A50 module 
Power Supply  
Port name  L+, N  
Connector type  Barriertype terminal block (M3.5 / bolt head size Ø6)  
Wire specs / torque  0.34 – 4.0 mm^{2}(22 – 12 AWG), copper / Max. 1.4 Nm (14 kgfcm, 12 lbfin)  
Wire temp rating  Above 70 °C  
Power supply^{1}  AC 100 – 240 V, DC 100 – 300 V, CAT II  
Frequency  50/60 Hz  
Withstand voltage  AC 3,000 V RMS, 60 Hz for 1 minute  
Operating envir.  Pollution degree 2  
Power consumption  Max. 20 W  Varies by the number of connected Accura 2350 modules 
Inrush current^{2} 
Peak 31 A, duration less than 1 msec (AC 220 V)  
Peak 11 A, duration less than 200 ¥ìsec (DC 110 V)  
Ground Wiring  
Port name  
Connector type  Barriertype terminal block (M3.5 / bolt head size Ø6)  
Wire specs / Torque  2.5 – 4.0 mm^{2}(14 – 12 AWG), copper / Max. 1.4 Nm (14 kgfcm, 12 lbfin)  
Wire temp rating  Above 70 °C  
Voltage Input  
Port name  V_{1}, V_{2}, V_{3}, V_{N}  
Connector type  Barriertype terminal block (M4 / bolt head size Ø7)  
Wire specs / Torque  0.34 – 2.5 mm^{2}(22 – 14 AWG), copper / Max. 1.1 Nm (12 kgfcm, 10 lbfin)  
Wire temp rating  Above 70 °C  
Burden  0.01 VA/phase @ 220 V  
Withstand voltage  AC 3,000 V RMS, 60 Hz for 1 minute  
Impedance  10 M¥Ø/phase  
Meas. category  Category ¥²  
Internal Communication with Accura 2350 Modules  
Dedicated communication

Connected with multiple Accura 2350 modules  
Port name  RJ12–1, RJ12–2 (2 ports)  
Connector type  RJ12  
Protocol  Dedicated protocol of the manufacturer  
Number of connectable modules  Max. 15 modules per port^{3}  
Total length^{5} of 6C telephone line^{4}  Max. 6 m per port  
External Communication with the Host System  
Ethernet

Port name  Ethernet1, Ethernet2 (2 ports) 
Connector type  RJ45  
Protocol  Modbus TCP  
Ethernet cable  STP (Braided Shield Twisted Pairs)/ SFTP (Braided Foiled Shield Twisted Pairs) Cat 5e  
Comm. speed  100 Base–TX(100 Mbps/Full Duplex)  
Wiring mode  Star, DaisyChain, Ring topology  
RS–485^{14}

Port name  Ta(TRX+), Tb(TRX), (Ground) 
Connector type  Screwtype terminal block (pluggable)  
Protocol  Modbus RTU  
Wire specs  UL 2919 RS485 1P/2P 0.25 – 4.0 mm^{2}(24 – 12 AWG), Braided shield twisted pairs^{6}  
Cable length  Up to 1,219 m(4,000 ft)  
Baud rate  1,200 – 115,200^{7} bps  
Number of connectable modules  Max. 32 modules per bus^{7}  
Digital Input/Output^{8}  
Digital input

Port name  DI_{1}, DI_{2}, DI_{G} 
Connector type  Barriertype terminal block (M3 / bolt head size Ø5.5)  
Input type  2 channels, Dry contact(common ground)  
Wire specs / torque  0.34 – 2.5 mm^{2}(22 – 14 AWG), copper / Max. 1.1 Nm (12 kgfcm, 10 lbfin)  
Rating  DC 5 V (selfexcitation)  
Isolation  Max. 300 V  
Min. pulse width  1 sec  
Digital output

Port name  DO, DO_{G} 
Connector type  Barriertype terminal block (M3 / bolt head size Ø5.5)  
Wire specs / torque  0.34 – 2.5 mm^{2}(22 – 14 AWG), copper / Max. 1.1 Nm (12 kgfcm, 10 lbfin)  
Output contact  1 channel, Form A relay  
Output type  Latch, Uncountable/Countable Pulse^{9}, Periodic Pulse^{9}  
Isolation  AC 3,000 V for 1 minute  
Max. rating  AC 240 V 5 A, DC 110 V 0.3 A, DC 30 V 5 A  
Voltage Measurement  
Wiring mode  3P4W, 3P3W, 1P3W, 1P2W  
Sampling rate  512 samples/cycle  
Frequency meas.  42 – 69 Hz  
Voltage

Measuring range^{10} (accuracy guaranteed) 
AC 35 – 277 V LN (Linetoneurtral), 
AC 60 – 480 V LL (for unearthed Delta^{11} & Y systems)  
Accuracy  ±0.2 % Reading  
Min. measured value  AC 5 V LN / 9 V LL  
Measurement data

Linetoneutral voltage, Linetoline voltage, Frequency, Fundamental^{12,13}, Harmonics^{12,13} ,THD  
Vector diagram (phasor)^{13}, Residual voltage^{13, 14}  
Unbalance according to symmetrical components (zero sequence or negative sequence) ^{13}/the NEMA standard^{13}  
Power Quality  
Dip(Sag), Swell  RMS voltage values measured over 1 cycle(refreshed every half cycle)  
Voltage harmonics

Harmonic order  Up to the 50th^{15} order 
Measurement data  THD, Magnitude of each harmonic  
Voltage unbalance^{13}

Linetoneutral/Linetoline voltage unbalance according to the NEMA standard  
Zerosequence/negativesequence voltage unbalance  
General  
Temperature sensor^{16}  A temperature sensor is located on the side of the device.  
Weight  550 g 
Current Input  
Connector type  Throughhole type  
Wire size  Selectable according to hole dimensions  
Measurement  
Frequency measurement  42 – 69 Hz  
Sampling

FFT calculation (harmonic measurement) 
64 samples/cycle  
RMS calculation (basic measurement) 
32 samples/cycle  
Current

Model  Basic Current  Measuring Range (Accuracy guaranteed) 
Min. Meas.Value  Hole Dimensions 
Weight  
Accura 23503P250A105  250 A 
1 A

300 A

250 mA  Ø21.0 mm  217 g  
Accura 23503P125A90  125 A 
500 mA

150 A

125 mA  Ø16.5 mm  196 g  
Accura 23503P100A75  100 A 
400 mA

120 A

100 mA  Ø13.5 mm  155 g  
Accura 23503P60A75  60 A 
240 mA

72 A

60 mA  Ø13.5 mm  155 g  
Accura 23503PCT5A75^{1}  CT 5 A 
CT20 mA

CT 6 A^{2}

CT 5 mA  Ø13.5 mm  155 g  
Accura 23501P250A105  250 A 
1 A

300 A

250 mA  Ø21.0 mm  217 g  
Accura 23501P125A60  125 A 
500 mA

150 A

125 mA  Ø16.4 mm  99 g  
Accura 23501P100A50  100 A 
400 mA

120 A

100 mA  Ø13.5 mm  85 g  
Accura 23501P60A50  60 A 
240 mA

72 A

60 mA  Ø13.5 mm  85 g  
Accura 23501P50A35  50 A 
200 mA

60 A

50 mA  Ø8.9 mm  74 g  
Accura 23501P30A35  30 A 
120 mA

36 A

30 mA  Ø8.9 mm  74 g  
Accura 23501PSH50A35  50 A 
200 mA

60 A

50 mA  Ø9.0 mm  71 g  
Accura 23501PSH30A35  30 A 
120 mA

36 A

30 mA  Ø9.0 mm  71 g  
Accuracy  ±0.2 % Reading  
Measured data

RMS, Fundamental, THD, TDD, Harmonics^{3}, Residual current^{4}, Leakage current  
Vector diagram(phasor)^{3}, Crest factor^{3}, Kfactor^{3}  
Unbalance according to symmetrical components (zero sequence or negative sequence)^{4}/ the NEMA standard^{4}  
Leakage current

Leakage current input  Voltagetype external ZCT 200 mA/100 mV @1.2 k¥Ø burden  
Accuracy^{5}/Measuring range  ±2 % Reading + 2 mA / Up to 1 A  
Power

Active 
Accuracy

IEC 6155712 Class 0.5  
Reactive  IEC 6155712 Class 1  
Apparent  IEC 6155712 Class 0.5  
Energy

Active

Accuracy  IEC 6205322 Class 0.5S  
Measured data  Received/Delivered/Net/Sum(total) energy  
Reactive^{3}

Accuracy  IEC 6205324 Class 1  
Measured data  Positive/Negative/Net/Sum(total) energy  
Apparent^{3}  Accuracy  IEC 6155712 Class 0.5  
Power factor  Power factor  
Demand  Current/Power  Demand, Peak demand, Predicted demand^{3,6}  
Power Quality  
Current harmonics

Harmonic order  Up to the 31st harmonic  
Measured data  THD, TDD, magnitude of each harmonic^{3}  
Current unbalance^{4}

Current unbalance according to the NEMA standard  
Zerosequence/negativesequence current unbalance 
Current Input  
Connector type  Throughhole type  
Wire size  Selectable according to hole dimensions  
Measurement  
Frequency measurement  42 – 69 Hz  
Sampling

FFT calculation (harmonic measurement) 
64 samples/cycle  
RMS calculation (basic measurement) 
32 samples/cycle  
Current

Model  Basic Current  Measuring Range (Accuracy guaranteed) 
Min. Meas. Value  Hole Dimensions  Weight  
Accura 23503PSC250A105  250 A 
2.50 A

300 A

1.67 A  23.0 x 31.7 mm  428 g  
Accura 23503PSC125A90  125 A 
1.25 A

150 A

0.83 A  18.2 x 31.7 mm  390 g  
Accura 23503PSC60A75  60 A 
0.60 A

72 A

0.40 A  13.4 x 31.7 mm  325 g  
Accura 23503PSCCT5A90^{1} 
CT 60 A 
CT 50 mA

CT 6 A^{2} 
CT 33 mA 
6.2 x 6.5mm(A,C) 
244 g
(excluding mounting wings) 

6.2 x 7.7 mm(B)^{3}  
Accura 23501PSC250A105  250 A 
2.50 A

300 A

1.67 A  23.0 x 31.7 mm  428 g  
Accura 23501PSC125A60  125 A 
1.25 A

150 A

0.83 A  17.9 x 31.7 mm  188 g  
Accura 23501PSC60A50  60 A 
0.60 A

72 A

0.40 A  13.0 x 31.7 mm  158 g  
Accuracy  ±0.5 % Reading^{4}  
Measured data

RMS, Fundamental, THD, TDD, Harmonics^{5}, Residual current^{6}, Leakage current  
Vector diagram(phasor)^{5}, Crest factor^{5}, Kfactor^{5}  
Unbalance according to symmetrical components(zero sequence or negative sequence)^{6}/the NEMA standard^{6}  
Leakage current

Leakage current input  Voltagetype external ZCT 200 mA/100 mV @1.2 k¥Ø burden  
Accuracy^{7}/Measuring range  ±2 % Reading + 2 mA / Up to 1 A  
Power

Active 
Accuracy

IEC 6155712 Class 0.5  
Reactive  IEC 6155712 Class 1  
Apparent  IEC 6155712 Class 0.5  
Energy

Active

Accuracy  IEC 6205322 Class 0.5S  
Measured data  Received/Delivered/Net/Sum(total) energy  
Reactive^{5}

Accuracy  IEC 6205324 Class 1  
Measured data  Positive/Negative/Net/Sum(total) energy  
Apparent^{5}  Accuracy  IEC 6155712 Class 0.5  
Power factor  Power factor  
Demand  Current/Power  Demand, Peak demand, Predicted demand^{5,8}  
Power Quality  
Current harmonics

Harmonic order  Up to the 31st harmonic  
Measured data  THD, TDD, magnitude of each harmonic^{5}  
Current unbalance^{6}

Current unbalance according to the NEMA standard  
Zerosequence/negativesequence current unbalance 
Current Input  
Connector type  Throughhole type  
Wire size  Selectable according to hole dimensions  
Measurement  
Frequency measurement  42– 69 Hz  
Sampling

FFT calculation (harmonic measurement) 
64 samples/cycle  
RMS calculation (basic measurement) 
32 samples/cycle  
Current

Model  Basic Current  Measuring Range (Accuracy guaranteed) 
Min Meas.Value  Hole Dimensions  Weight  
Accura 23501PSCSH800A  800 A 
3.20 A

960 A

0.80 A  43.9 x 45.1 mm  569 g  
Accura 23501PSCSH630A  630 A 
2.52 A

756 A

0.63 A  33.5 x 41.2 mm  383 g  
Accura 23501PSCSH400A  400 A 
1.60 A

480 A

0.40 A  33.5 x 41.2 mm  383 g  
Accuracy  ±0.2 % Reading  
Measured data

RMS, Fundamental, THD, TDD, Harmonics^{1}, Residual current^{2}, Leakage current  
Vector diagram(phasor)^{1}, Crest factor^{1}, Kfactor^{1}  
Unbalance according to symmetrical components(zero sequence or negative sequence)^{2}/ the NEMA standard^{2}  
Leakage current

Leakage current input  Voltagetype external ZCT 200 mA/100 mV @1.2 k¥Ø burden  
Accuracy^{3}/Measuring range  ±2 % Reading + 2 mA / Up to 1 A  
Power

Active 
Accuracy

IEC 6155712 Class 0.2  
Reactive  IEC 6155712 Class 1  
Apparent  IEC 6155712 Class 0.2  
Energy

Active

Accuracy  IEC 6205322 Class 0.2S  
Measured data  Received/Delivered/Net/Sum(total) energy  
Reactive^{1}

Accuracy  IEC 6205324 Class 1  
Measured data  Positive/Negative/Net/Sum(total) energy  
Apparent^{1}  Accuracy  IEC 6155712 Class 0.2  
Power factor  Power factor  
Demand  Current/Power  Demand, Peak demand, Predicted demand^{1,4}  
Power Quality  
Current harmonics

Harmonic order  Up to the 31st harmonic  
Measured data  THD, TDD, magnitude of each harmonic^{5}  
Current unbalance^{2}

Current unbalance according to the NEMA standard  
Zerosequence/negativesequence current unbalance 
Device Type  
Model  Weight  
Threephase
terminal block 
TM3P105  339 g  
TM3P90  202 g  
TM3P75L  183 g  
TM3P75  133 g  
TM3P105LB^{1}  361 g  
TM3P90LB^{1}  216 g  
TM3P75LLB^{1}  220 g  
TM3P75LB^{1}  160 g  
Singlephase
terminal block 
TM1P105  246 g  
TM1P60  134 g  
TM1P50L  121 g  
TM1P50  88 g  
TM1P105LB^{1}  246 g  
TM1P60LB^{1}  142 g  
TM1P50LLB^{1}  128 g  
TM1P50LB^{1}  96 g 
Environmental Conditions  
Operating temperature  20 – 70 ¡É(4 – 158 ¢µ) 
Safe operating temperature^{1}  20 – 60 ¡É(4 – 140 ¢µ) 
Storage temperature  40 – 85 ¡É(40 – 185 ¢µ) 
Operating humidity  5 – 95 %(noncondensing) 
Operating altitude  Up to 2,000 m 
Ingress protection against dust and water  IEC 60529 IP43 


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