KPM312 OEM Wireless Din Rail WiFi 4G LoRa Multi Channel Energy Meter
⚙️Max 12 Loops (1P) / 4 Loops (3P)
🎯Class 0.5S
- Supports single phase and 3 phase multi channel measurement. One meter can be used as max 12 meters.
- Time of Use multi rate energy consumption measuring, can be used for up to 5 rates per day.
- Rich extension functions, including temperature, control, digital signal input and other functions.
- Optional RS485 / WiFi / 4G/ Lora communication, Modbus-RTU / MQTT protocol
- Rated current 5A-800A optional
- Optional 4 × DI and 4 × DO,Optional temperature measurement for 4 circuits
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Features
KPM312 WiFi 4G Lora Multi Channel Energy Meter adopts DIN 35MM rail type installation structure and LCD display. It integrates 4 channels three-phase electric parameter measurement.The default communication is Modbus-RTU by RS485. WiFi, 4G, Lora communication are optional. It can also expand 4-way digital input and 4-way relay output, 4-way temperature measurement for each circuit.
Functions of KPM312 Multi Channel Energy Meter
- KPM312 Three Phase Multi Channel Energy Meter
- Multi channel measurement: 4 channel 3 phase loop power parameter measurement
- Communication protocol: Modbus-RTU, DL/T645, MQTT
- Optional function: 4 digital inputs and 4 digital outputs for each channel
- 4 temperature measurement for each channel
- Optional connection: Lora, WiFi, 4G, RS485
- Installation method: DIN rail 35MM three phase energy meter
- Measurement: three phase UL-L, UL-N, I, F, PF, P, Q, S, four-quadrant power, etc.
- High accuracy: U Class 0.2; I Class 0.2; P Class 0.5S.
- Active energy Class 0.5S.
- Reactive energy Class 2.0.
Record function:
- Monthly average power factor and power data for the last three months.
- Demand and maximum and minimum data statics.
- Meter working time, load time statics.
Record function:
- Monthly average power factor and power data for the last three months.
- Demand and maximum and minimum data statics.
- Meter working time, load time statics.
KPM312 Wireless Multi Channel Din Rail WiFi 4G Lora Energy Meter Network Topology
Application Occasion
- Energymanagement system integration
- Old project or wire line modification
- Measured circuit are near or in one cabinet
- Projects with limited space or inconvenient installation
KPM312 Three Phase Multi Channel Energy Meter
KPM312 Three Phase Multi Channel Energy Meter Technical Specification
| Power supply | Operating Voltage | 85-305VAC/70-430VDC |
|---|---|---|
| Rated power | <3VA | |
| Input voltage | Rated voltage | 3×220VAC |
| Overload capacity | 1.2 times rated voltage allowed, continuous work. 2 times the rated voltage allowed 10 second |
|
| Power consumption | <0.5VA/phase(Rated) | |
| Measurement range | L-N:50~260VAC, LL:90~450VAC | |
| Frequency range | 45~65Hz | |
| Input current | Rated current | 4 channels optional: 5A, 100A, 400A, 800A with split core current transformers |
| Overload capacity | 1.2 times rated current allowed, continuous work. 20 times the rated current allowed 1 second. |
|
| Power consumption | <0.75VA/phase (Rated current 5A) | |
| Frequency range | 45~65Hz | |
| Input/Output | Digital input | 4-way passive main line contact DI input, internal supply DC24V power source |
| Digital output | 4-way DO output, Contact capacity 250VAC/5A, 30VDC/5A | |
| Power quality monitor | Harmonic measurement | Voltage/current 2~31st harmonic distortion rate,total harmonic distortion rate |
| Programmable voltage current transformation ratio | Phase voltage,phase current | |
| Harmonic distortion rate (THD) | Voltage, current | |
| Measurement accuracy | Voltage | ±0.2%(0.01V) |
| Current | ±0.2%(0.01A) | |
| Active power | ±0.5%(0.1W) | |
| Reactive power | ±2.0%(0.1var) | |
| Apparent power | ±0.5%(0.1VA) | |
| Active energy | 0.5S(0.1kWh) | |
| Reactive energy | ±2.0%(0.1kvarh) | |
| Power factor | ±0.5%(0.001) | |
| Frequency | ±0.02Hz(0.01Hz) | |
| Communication interface | Communication interface | RS485 / WIFI / 4G / Lora (410-525Mhz) |
| Communication protocol | Modbus-RTU, DL/T645-2007, MQTT | |
| Electrical insulation | Power frequency withstand voltage | 2KV Insulation resistance, 1 minute |
| Insulation resistance | >50MΩ | |
| Impact voltage | 5kV(Peak),1.2/50us | |
| Working environment | Operating temperature | -25℃~+70℃ |
| Relative humidity | 5%~95% No condensation | |
| Storage temperature | -30℃~+75℃ | |
| Altitude | No more than 3000m | |
| Electromagnetic Compatibility | Surge (impact) immunity | GB/T17626.5-2008,Level4,IEC61000-4-5, level 4 |
| Fast pulse group immunity | GB/T17626.4-2008,Level4,IEC61000-4-4, level 4 | |
| Electrostatic discharge immunity | GB/T17626.2-2006,Level4,IEC61000-4-2, level 4 | |
| Power frequency magnetic field immunity | GB/T17626.8-2006,Level4,IEC61000-4-8, level 4 |
Application Of KPM312 Three Phase Multi Channel Energy Meter
KPM312 Multi Channel Energy Meter wiring
KPM312 Three Phase Multi Channel Energy Meter Download
FAQ Of KPM312 Three Phase Multi Channel Energy Meter Technical
Q1: How does the KPM312 Multi Channel Energy Meter achieve multi-loop power monitoring in high-density electrical panels?
A: The KPM312 energy meter is a specialized multi-loop energy meter designed for high-density environments. It can monitor up to 12 single-phase circuits or 4 three-phase circuits simultaneously within a single device. By utilizing external split-core current transformers (CTs), it allows for non-intrusive installation in tight spaces, making it the perfect solution for data centers and industrial power distribution cabinets.
Q2: What communication interface does the KPM312 Multi Channel Energy Meter use for system integration?
A: The KPM312 Multi Channel Energy Meter is equipped with a standard RS485 communication interface supporting the Modbus-RTU protocol. This ensures high stability and anti-interference performance in industrial settings. Please note that this model utilizes RS485, not RJ45, allowing for reliable long-distance connection to PLC or energy management systems (EMS).
Q3: Does the KPM312 Multi Channel Energy Meter support flexible switching between single-phase and three-phase loads?
A: Yes. One of the standout features of the KPM312 Multi Channel Energy Meter is its flexible configuration. Users can freely switch between single-phase and three-phase monitoring modes depending on the field requirements. This versatility reduces the need for multiple meter types, simplifying inventory management and installation for electrical engineers.
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