Single-phase electric energy meter SFM236

DIN railresidentialmulti-function

Product overview
The SFM236 series single-phase multifunction DIN-rail meter is a compact, high-precision energy monitoring device designed for 1P2W systems. Suitable for residential buildings, light commercial sites and small industrial applications, the meter provides continuous measurement and data export for power monitoring and energy management.

Core Measurement Capabilities

• Voltage: RMS line voltage (compatible with 100 V, 120 V, 220 V, 230 V, 240 V)
• Current: RMS load current (direct connection 0.25–5(80) A; supports CT secondary 1 A / 5 A)
• Power: Active (P), reactive (Q) and apparent (S) power
• Frequency: Grid frequency monitoring (50 Hz / 60 Hz)
• Energy: Cumulative import/export energy; supports distributed generation metering

Operational Versatility & System Integration
The meter features a local LCD with white backlight for on-site readings and supports remote integration via RS485 using Modbus RTU. It is suitable for connection to PLCs, RTUs and energy management systems for data logging, trend analysis and centralized control.

Technical Parameters
Input - Voltage: Un = 100...240 VAC; operating range 0.8Un–1.15Un. Current: direct 0.25–5(80) A; overcurrent withstand 301 max for 0.01 s; CT support 1 A / 5 A. Frequency: 50/60 Hz. Wiring capacity: 16–25 mm². Display: LCD with white backlight; max reading 999999 kWh. Accuracy: Active energy Class 1 / Class B. Output - Communication: RS485, Modbus RTU. Pulse: 800 imp/kWh. Power consumption: < 2W / 10 VA. Withstand: AC 4 kV / 1 min; DC impulse 6 kV (1.2 µs). Environmental: Operating temperature -25 °C to +55 °C; storage -40 °C to +70 °C; humidity ≤ 95% non-condensing; altitude ≤ 2000 m. Mechanical/EMC: Mechanical environment M1; electromagnetic environment E2.

Caractéristiques / spécifications techniques

• Model/Series: SFM236 series
• Rated voltage: 100...240 VAC (0.8Un–1.15Un)
• Rated current: 0.25–5(80) A (direct); supports CT secondary 1 A / 5 A
• Frequency: 50/60 Hz
• Display: LCD with white backlight; max reading 999999 kWh
• Communication: RS485, Modbus RTU
• Pulse constant: 800 imp/kWh
• Power consumption: < 2W / 10 VA
• Operating temperature: -25 °C to +55 °C; Storage: -40 °C to +70 °C
• Withstand: AC 4 kV/1 min; DC impulse 6 kV (1.2 µs)
• Wiring capacity: 16–25 mm²