Smart Three-Phase Energy Meter
An intelligent three-phase energy meter that measures, monitors and controls industrial loads — and lets you do all of it from anywhere in the world over a secure wireless link.
The KD-SEM3 turns a standard three-phase connection into a fully observable, remotely controllable node. It measures voltage, current, power factor, frequency and energy on all three phases in real time, then publishes that data to a cloud dashboard you can open from any browser on the planet.
Beyond metering, it acts. An integrated contactor and protection logic let you switch loads on or off, schedule operation, cap demand and trip automatically on faults — over-voltage, phase loss, overload or imbalance — without anyone on site. Control is bidirectional and authenticated end-to-end, so 'global controllability' means convenience, not exposure.
For multi-site operators, the meters federate into one fleet view. Compare consumption across plants, spot the machine that drifted out of balance, and bill tenants or departments accurately — all from a single pane of glass, with data retained for audits and energy-efficiency programs.
True three-phase metering
Per-phase V, I, kW, kVAR, power factor, frequency and cumulative energy, sampled continuously with revenue-grade accuracy.
Control from anywhere
Switch, schedule and limit loads remotely over an encrypted link — from the next room or the next continent.
Automatic protection
Configurable trips for over/under-voltage, phase loss, overload and imbalance keep equipment safe when no one's watching.
Live cloud dashboard
Real-time graphs, alerts and historical trends in a browser; export to CSV or your BMS/SCADA.
Demand & cost insight
Track peak demand, power-factor penalties and tariff windows to cut your electricity bill deliberately.
Multi-site fleet view
Roll many meters into one account; compare, group and bill by site, line or department.
| Measurement | 3-phase, 4-wire; per-phase V/I/PF/kW/kVAR |
|---|---|
| Accuracy class | Class 0.5S (energy) |
| Voltage range | 3 × 230/400 V AC nominal |
| Current input | Direct or via CT (up to configurable A) |
| Switching | Integrated contactor / relay output |
| Connectivity | Wi-Fi + 4G-LTE; MQTT / Modbus-TCP |
| Security | TLS encrypted, per-device credentials |
| Logging | On-device buffer + cloud retention |
- Remote management of factory machine lines and HVAC
- Sub-metering and fair billing for tenants or departments
- Power-factor and demand monitoring to lower energy bills
- Unattended pump houses, cold storage and farm installations
- Energy data feed for ISO 50001 / efficiency audits
Install
Wire the meter into the three-phase supply (direct or through CTs). Power up; it self-tests and joins your wireless network.
Pair
Claim the device in your cloud account with its unique key. It begins streaming per-phase measurements immediately.
Monitor
Watch live values and trends, set thresholds, and configure protection and schedules from the dashboard.
Control
Switch loads, cap demand or trip remotely; every action is authenticated, logged and reversible.
Interested in the KD-SEM3?
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