Omron KM-N3-FLK — On Panel Power Monitor, 96x96
SKU: KM-N3-FLKUSD 180.00
Omron KM-N3-FLK KM-N3 on-panel power monitor, 96x96 mm, 100-240 VAC, RS-485, IEC 0.5S. In stock, China shipping.
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Product Overview
The Omron KM-N3-FLK is a global on-panel power monitor, manufactured by Omron Corporation. Hengyixin Automation stocks this power supply in Xiamen and ships within 3-5 business days in original Omron packaging.
The unit fits a 96 (H) x 96 (W) x 64 (D) mm panel cutout (1/4 DIN). Power supply is 100-240 VAC at 50/60 Hz, drawing 7 VA. It measures single-phase 2-wire circuits (up to 4 circuits), single-phase 3-wire, three-phase 3-wire, and three-phase 4-wire systems, with active power accuracy at IEC 62053-22 class 0.5S.
RS-485 carries Modbus RTU or CompoWay/F to up to 99 or 31 slaves respectively across 1200 m. Four PhotoMOS pulse outputs report active energy at 1, 10, 100, 1k, 5k, 10k, 50k, or 100k Wh. Current transformers are general-purpose 1 A or 5 A secondary -- pair with the KM-NCT-E100A, KM-NCT-E250A, or KM-NCT-E500A split-type CT. The 24 VDC supply for the panel can come from a S8VK-G06024. For a 24 VDC supply version, use the KM-N2-FLK sibling.
Key Features
- On-panel 1/4 DIN power monitor, 96 x 96 x 64 mm, 100-240 VAC supply
- Measures up to 4 single-phase 2-wire circuits, or 1 three-phase 4-wire circuit
- Active power IEC 62053-22 class 0.5S, sampling 80 ms (50 Hz) / 66.7 ms (60 Hz)
- RS-485 Modbus RTU or CompoWay/F, 1200 m, 4 PhotoMOS pulse outputs for active energy
- SKU: KM-N3-FLK
- Series: Omron KM-N3-series on-panel power monitor
- Voltage: 100-240 VAC
Best-Fit Applications
- Multi-circuit energy logging on a factory floor where the monitor reads four 1-phase 2-wire feeders and pushes totals over RS-485 to an NJ PLC
- Spare replacement for a third-party kWh meter on a tenant sub-billing cabinet where the Omron unit has standard Modbus RTU polling
- Three-phase 4-wire panel instrumentation where the monitor reports active / reactive power and frequency into an NB-series HMI screen on the same RS-485 trunk
Buying Checklist
- Pick the KM-N3-FLK for an on-panel 1/4 DIN power monitor with RS-485 Modbus RTU and four pulse outputs.
- Pick the KM-N2-FLK instead when the cabinet has a 24 VDC supply only and no 100-240 VAC source is available at the panel.
- Pick the S8VK-G06024 instead when the panel only needs a 60 W 24 VDC supply for the KM-N3 output signals, not a full power monitor.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron KM-N3-series on-panel power monitor |
| Model / SKU | KM-N3-FLK |
| Mounting | On-panel, 96 x 96 mm cutout (1/4 DIN) |
| Power Supply | 100-240 VAC, 50/60 Hz, 7 VA max |
| Measured Circuits | 1-phase 2-wire x4, 1-phase 3-wire x2, 3-phase 3-wire x2, 3-phase 4-wire x1 |
| Active Power Accuracy | IEC 62053-22 class 0.5S |
| Sampling Period | 80 ms (50 Hz) / 66.7 ms (60 Hz) |
| Communication | RS-485 Modbus RTU (up to 99 slaves) or CompoWay/F (up to 31) |
| Pulse Outputs | 4 PhotoMOS, 40 VDC 50 mA, 1/10/100/1k/5k/10k/50k/100k Wh |
| CT Input | General-purpose 1 A or 5 A secondary CT |
| Protection / Environment | IP65 front, IP20 rear, 0 to 55 degC operating |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for KM-N3-FLK
Is the KM-N3-FLK a serial option for the H7C or H7E counter?
No. The KM-N3-FLK is a global on-panel power monitor with its own 96 x 96 mm body and 100-240 VAC supply. It is not an option board for the H7C / H7E counter family.
How many circuits can the KM-N3-FLK measure?
Up to four single-phase 2-wire circuits, or two single-phase 3-wire / three-phase 3-wire circuits, or one three-phase 4-wire circuit. Each circuit reads through an external CT with 1 A or 5 A secondary output.
Which split CTs work with the KM-N3-FLK?
The KM-NCT-E100A (100 A), KM-NCT-E250A (250 A), and KM-NCT-E500A (500 A). The CT cable does not exceed 1 VA total load and the wire gauge is AWG18-14 with an M3 Y-terminal at the CT end.
Can the KM-N3-FLK export data over Ethernet?
No. The KM-N3-FLK has RS-485 only (Modbus RTU or CompoWay/F). For Ethernet, bridge the RS-485 trunk through an external Modbus-to-Ethernet gateway or use a CP1W-CIF41 option board on a CP1L PLC.
Does the KM-N3-FLK need a separate 24 VDC supply?
No. The KM-N3-FLK is powered directly from the 100-240 VAC mains. The four pulse outputs draw their signal power from the monitored circuit, not from a separate DC rail.
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