Energy consumption monitoring

Single-Phase Energy Meter with Internal CT — Modbus RS485

The SEMSPMI is a compact single-phase energy meter with a built-in 25A current transformer and Modbus RS485 RTU output. Ready to deploy sub-metering for tenant monitoring, machine-level energy tracking, and building management — without external CT clamps or additional wiring.

Built-in CT — Compact and Clean

The internal 25A CT means the meter is self-contained — the live conductor passes through the built-in CT inside the unit. No external CT to mount, no additional wiring from CT to meter. Ideal for panel installations with limited space and for deployments where a clean, minimal installation is required.

Use Cases

• Tenant sub-metering — monitor individual flat or unit energy consumption in apartment buildings and commercial complexes
• Machine energy monitoring — track consumption of individual machines on a production floor
• DG set and UPS monitoring — measure load and runtime of backup power systems
• Building floor-level metering — per-floor or per-zone energy visibility in commercial buildings

Key Specifications

• Phase: Single phase
• Current rating: 25A (internal CT)
• Output: Modbus RTU RS485
• Readings: kWh, voltage, current, power factor, frequency
• CT type: Internal — no external CT required