Main Documents
Description
PMC-340 Digital Three-Phase Energy Meter
Device Introduction
- The PMC-340 Series Digital Three-Phase Energy Meter is CET's latest offer for the low voltage power/energy metering market featuring DIN-Rail mount, high accuracy, multifunction true RMS measurements and a large, easy to read LCD display.
- The PMC-340 complies with the IEC 62053-21: 2020 Class 0.5 and IEC 62053-22: 2020 Class 0.5S kWh Accuracy Standards for 100A Direct Input and 5A CT Input, respectively. The PMC-340 comes standard with a LED as well as a Solid State Pulse Output for energy pulsing. The standard RS-485 port and Modbus protocol support allows the PMC-340 to become a vital component of an intelligent, multifunction monitoring solution for any Power and Energy Management Systems.
Product Highlight
- Three-Phase Multifunction Meter
- IEC62053-21 Class 0.5 (100A Direct Input), IEC62053-22 Class 0.5S (5A CT), NMI (Australia) Approval
- 35mm DIN Rail, 126x65x90mm
- B&W LCD Display
- Harmonics, Demands & TOU, Energy Log, Max/Min Log and Event Log
- 2MB Log Memory
- Modbus RTU,1xRS-485
- 1xSS Pulse Output, Optional 3xDI
Typical Application
- DIN-Rail mount energy metering
- Industrial and commercial metering
- Substation, building and factory automation
- Sub-metering
- Power quality monitoring
Related Products
PMC-220 Single-Phase Multifunction Meter
PMC-230 Single-Phase Multifunction Meter
PMC-350-C Three-Phase LoRaWAN DIN Energy Meter
Related Solutions
- Load Monitoring & Control
Specification
Technical Specification
Inputs(L1,L2,L3,N) | |
| Voltage (Un) | 220VAC | 230VAC | 240VAC |
| Overrange (% Un) | 120% | 115% | 110% |
| Range(V) | 168-264VAC(Self-powered) |
| Burden | < 10VA/phase |
| Direct Input | -- |
| Current (Ib/Imax) | 20A/100A |
| Range | 0.4% Ib to Imax |
| Starting Current(Ist) | 0.4% Ib (0.08A) |
| Minimum Current | 5% Ib (1A) |
| Burden | <4VA/phase |
| Maximum Wire Size | 35mm 2(3AWG) |
| Maximum Torque | 2.5N.m |
| CT Input | -- |
| Current (Ib/Imax) | 5A/6A |
| Range | (0.1%-120%)In |
| Starting Current(Ist) | 0.1%In |
| Burden | <0.5VA/phase |
| Frequency | 45Hz-65Hz |
Solid State Energy Pulse Output (Selectable-kWh/kvarh) | |
| Pulse Constant | 1/10/100/500*/1000/3200/5000* imp/kWh(imp/kvarh) |
| Isolation | Optical |
| Max.Load Voltage | 80V |
| Max.Forward Current | 50mA |
| Pulse Width | 60-150ms (PMC-340-A) 30-150ms (PMC-340-B) |
Communications | |
Protocol | 95-250VAC/VDC ± 10%, 47-440 Hz |
Baud Rate | 20-60VDC |
| Maximum Wire Size | < 14VA/10W @ 250VAC/DC <6W @ 24VDC |
| Maximum Torque | OVC III 300V |
| RS-485 Port | 1 |
Environmental Conditions | |
Operating Temp. | -25 °C to + 70°C |
Storage Temp. | -40 °C to + 85°C |
Humidity | 5% to 95% non-condensing |
Atmospheric Pressure | 70 kPa to 106 kPa |
Pollution Degree | 2 |
Mechanical Characteristics | |
Mounting | DIN-Rail |
Unit Dimensions | 126x90x65 mm |
| Shipping Dimensions | 165x140x110 m |
| Shipping Weight | 0.68 kg |
IP Rating | IP51(Front), IP30(Body) |
Communications | |
Protocol | Modbus RTU, BACnet MS/TP, Metasys N2 and DNP3.0 |
RS-485 Port | 1+(1 Opt.) |
Features Summary | |
Display (Backlit) | B&W (No Backlit) |
Type of Measurement | ULN per Phase &Avg. ULL per Phase&Avg. Current per Phase &Avg. Neutral Current (Calc.) Frequency kW per Phase & Total kvar per Phase & Total kVA per Phase& Total PF per Phase& Total kWh lmport/Export kvarh Import/Export kVAh Total |
Power Quality | THD Voltage & Current TOHD Voltage & Current TEHD Voltage & Current 2nd-31st Harmonics K-Factor Voltage/Current Unbalance |
Battery-backed Real-time Clock | √ |
Demands | Present Demands and Max.Demands for This Month & Last Month |
Multi-Tariff TOU capability | Two TOU schedules, each providing: 12 Seasons 90 Holidays 20 Daily Profiles, each with 12 Periods in 15-minute interval 4 Tariffs |
Logs | |
Max./Min.Log | This month & Last Month |
Monthly Energy Log | 12 months |
Data Recorder(PMC-340-B Only) | 1 Data Recorder |
SOE Log | 16 entries |
On-board Log Memory | 2MB |
Accuracy
| Parameters | Accuracy | Resolution |
|---|---|---|
| Voltage | ±0.5% | 0.1V |
| Current | ±0.5% | 0.001A |
| P,Q,S | ±1.0% | 0.001kW/kvar/kVA |
| kWh | IEC 62053-21 Class 1 | 0.01kWh |
| kvarh | IEC 62053-23 Class 2 | 0.01kvarh |
| PF | ±1.0% | 0.001 |
| Frequency | ±0.02Hz | 0.01Hz |
Standards of Compliance
Safety Requirements | |
|---|---|
| CE LVD 2014/35/EU | EN 61010-1: 2010 EN 61010-2-030: 2010 |
| Insulation AC Voltage Impulse Voltage | IEC 62052-11: 2003 IEC 62053-21: 2003 NMI M6-1 4kV @ 1 minute 12kV+0%, -15%, 1.2/50µs (NMI M6-1 |
| Electrical Safety in Low Voltage Distribution Systems up to 1000Vac and 1500Vdc | IEC 61557-12:2018(PMDD |
Electromagnetic Compatibility EMC 2014/30/EU(EN 61326:2013) | |
| Electrostatic Discharge | EN 61000-4-2:2009 |
| Radiated Fields | EN 61000-4-3:2006+A1:2008+A2:2010 |
| Fast Transients | EN 61000-4-4:2012 |
| Surges | EN 61000-4-5:2014+A1:2017 |
| Conducted Disturbances | EN 61000-4-6:2014 |
| Magnetic Fields | EN 61000-4-8:2010 |
| Voltage Dips and Interruptions | EN 61000-4-11:2004+A1:2017 |
Mechanical Tests | |
| Spring Hammer Test | IEC 62052-11:2003 |
| Vibration Test | IEC 62052-11:2003 |
| Shock Test | IEC 62052-11:2003 |
Revenue Metering Approval | |
| NMI M6-1 of Australia | Approval Mark: NMI 14/2/109 UL Ref. # R4789222180_NMI |
Wiring Mode
Wiring Mode | PMC-340-A | PMC-340-B |
|---|---|---|
| 100A Direct Connect Wiring | 3P4W without CTs 3P3W without CTs 1P3W without CTs | 3P4W without CTs 3P3W without CTs 1P3W without CTs 1P2W L-L without CTs 1P2W L-N without CTs |
| 5A CT Connect Wiring | 3P4W with 3CTs 3P3W with 3CTs 3P3W with 2CTs 1P3W with 2CTs | 3P4W with 3CTs 3P3W with 3CTs 3P3W with 2CTs 1P3W with 2CTs 1P2W L-L with 1CT 1P2W L-N with 1C |