
KM-N3
Global power monitor for On-panel installation
- Solve design, installation, and operation topics.
- You can measure up to four circuits with one power monitor.
- Use general-purpose CTs and handle a variety of worksites.
- Large, easy-to-read white and green LCD for improved visibility.
- IEC Class 0.5S high-precision measurements (Power monitor only).
Specifications & ordering info
Ordering Information
Power monitor
Note: To use a commercially available current transformer, use a CT with a secondary current rating of 1 A or 5 A, and a rated load of at least 1.0 VA.
Optional products
To be ordered separately. The cover improves protection of terminals |
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Connectable OMRON split-type Current Transformers (CTs)
Note: The CT cables connected to the CT have the following recommended characteristics:
- cross section 0.75 mm² = AWG18
- 2C (number of internal wires is two)
- 1 m long maximum.
The CT cables are not provided by Omron
Specifications
Ratings (Power monitor)
Single-phase two-wire, single-phase three-wire, three-phase three-wire, and three-phase four-wire |
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Single-phase two-wire: 4 circuits max., Single-phase three-wire or three-phase three-wire: 2 circuits max., |
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Single-phase, 2-wire: 100 to 277 VAC Single-phase, 3-wire: 100 to 240 VAC (L-N) or 200 to 480 VAC (L-L) Three-phase, 3-wire: 173 to 480 VAC (L-L) Three-phase, 4-wire: 100 to 277 VAC (L-N) or 173 to 480 VAC (L-L) |
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General-purpose CT with a rated secondary current of 1 A or 5 A1 |
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Overvoltage category II, measurement category II, pollution degree 2 |
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Industrial electromagnetic environment (EN/IEC 61326-1 Table 2) |
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Ratings (Connectable OMRON Split-type Current Transformers (CTs))
100 MΩ min. (at 500 VDC) (Between through hole and output lead) |
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−20 to 55 °C, 85% max. relative humidity (with no condensation) |
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−30 to 90 °C, 85% max. relative humidity (with no condensation) |
Performance (Power monitor)
Total power consumption (active, regenerative, and reactive), power (active and reactive), current, voltage, power factor, and frequency |
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0.5% (IEC 62053-22 class 0.5S 2 |
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2% (IEC 62053-23 class 2) 1 |
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(1) Between all electrical circuits and the case: 20 MΩ min. (at 500 VDC) (2) Between all power supply and voltage inputs and all communications and pulse output terminals: 20 MΩ max. (at 500 VDC) |
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(1) Between all electrical circuits and the case: 1,400 VAC for 1 min (2) Between all voltage and current inputs and all communications and pulse output terminals: 2,200 VAC for 1 min |
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Single amplitude: 0.1 mm, Acceleration: 15 m/s2, Frequency: 10 to 150 Hz, 10 sweeps for 8 min each along three axes |
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150 m/s², 3 times each in 6 directions (up/down, left/right, forward/backward) |
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Number of outputs: 4 (photoMOS relay outputs) Used for the total power consumption pulse output. |
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50 mA at 40 VDC ON residual voltage: 1.5 V max. (for output current of 50 mA) OFF leakage current: 0.1 mA max. |
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Output unit: 1, 10, 100, 1k, 5k, 10k, 50k, or 100k (wh) Pulse ON time: 500 ms (Cannot be changed.) |
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Data length: 7 or 8 bits Stop bits: 1 or 2 bits Vertical parity: Even, odd, or none |
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Modbus: 99, CompoWay/F: 31 If you measure more than one circuit with one Power Monitor, the number of circuits is treated as the number of connected Power Monitors. |
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Instruction Manual and Compliance Sheet, Mounting adapter and waterproof packing |
How can we help you?
If you have a question or would like to ask for a quote, please contact us or send a request.
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