Schneider Electric A9MEM3150 iEM3150 3PH 63A Energy Meter

The Schneider Electric A9MEM3150 (iEM3150) is a three-phase electronic energy meter made for commercial, industrial, and building use that needs to be able to accurately monitor and bill for energy use. It can measure directly up to 63 A, thus many small and medium loads don’t need external current transformers. It also keeps Class 1 active energy accuracy according to IEC and EN standards.

This meter is part of the Acti 9 iEM3000 family. It can be mounted on a DIN rail and simply fits into distribution boards and control panels. The front LCD screen makes it easy to see important electrical parameters, and the built-in Modbus RS-485 connector lets you connect it to building and energy management systems for remote monitoring and data reporting. Its small width of 5 modules helps conserve space in packed panels without losing any functionality.

Schneider Electric A9MEM3150 iEM3150 3PH Direct 63A Energy Meter Specifications

Electrical

• Type: Three-phase electronic energy meter for sub-billing and monitoring.​

• Poles: 3P, 3P+N; supports 1P+N wiring.​

• Rated current: 63 A direct (no CTs needed).

• Voltage: 100–277 V L-N / 173–480 V L-L.​

• Frequency: 50/60 Hz.​

• Measurements: Active energy, voltage, current, active power.​

• Accuracy: Class 1 (IEC 62053-21, IEC 61557-12); Class B (EN 50470-3).​

• Max energy reading: 99,999,999.9 kWh.​

Communication

• Protocol: Modbus RTU RS-485 (9.6/19.2/38.4 kbaud).

• LEDs: Power ON (green), accuracy check (yellow flash), comm active (yellow).​

• Display: LCD for parameters and config.​

Mechanical

• Mounting: DIN rail clip-on.​

• Width: 5 modules (90 mm).​

• Dimensions: 90 x 95 x 69 mm.​

• Protection: IP40 front, IP20 body.​

• Terminals: Screw, up to 16 mm².​

Environmental

• Temp range: -25 to +55°C (MID) / up to +60°C.​

• Humidity: 5–95% non-condensing.​

• Altitude: <2000 m.​

Approvals

• Standards: IEC 62053-21/23, IEC 61010, EN 50470-3.​

• Certifications: CE, cULus, EAC.

SCHNEIDER ELECTRIC A9MEM3150 Instruction Manual

Download Manual File

Schneider Electric A9mem3150 Key features:

1) Direct three-phase metering up to 63 A without external CTs is good for small and medium loads.

2) Class 1 active energy accuracy meets the standards set by IEC 62053-21, IEC 61557-12, and EN 50470-3 (Class B).

3) Integrated Modbus RTU (RS-485) communication lets you connect to BMS/EMS and SCADA platforms.

4) LCD screen that clearly shows the values for energy, voltage, current, and power, as well as LED lights that show the status of power, accuracy checks, and communication.

5) The IP40 front protection and wide operating temperature range from −25 °C to +60 °C make this compact DIN-rail clip-on housing (5 × 18 mm pitches) very useful.

Usage:

-> Sub-metering and billing tenants in office buildings, malls, business parks, and commercial buildings where energy expenditures need to be split up correctly.

-> Monitoring the energy use of individual feeders, distribution boards, HVAC systems, pumps, and industrial machinery with a direct connection of up to 63 A.

-> For centralised monitoring, alerts, and reporting, integration with building management systems, energy management software, and SCADA over Modbus RS-485.

-> New or retrofitted electrical panels where minimising space, rapid DIN-rail mounting, and standard wiring are critical.