Selec EM2M-1P-C-100A Single-Phase Energy Meter
Selec EM2M-1P-C-100A Single-Phase Energy Meter | RS-485 + Pulse Output
Compact DIN-rail Class-1 single-phase energy meter with 100A direct input, LCD display, RS-485 Modbus RTU, pulse output, and maximum demand measurement for accurate industrial and commercial energy monitoring.
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The Selec EM2M-1P-C-100A is a compact Class-1 single-phase multifunction energy meter designed for direct 100A measurement without external CT. It features a clear LCD display, pulse output, RS-485 Modbus RTU communication, maximum demand monitoring, and programmable parameters. Ideal for submetering, industrial panels, commercial loads, and building automation systems.
(Features confirmed from page 1 & page 2 of the manual.)
Key Features
Direct Online 100A Single-Phase Energy Meter (No CT required)
LCD display with backlight, shows kWh/kVArh/kVAh/MD, V, A, PF, Hz
Class-1 active energy accuracy
RS-485 Modbus RTU communication (9600/19200 baud)
Pulse Output (24V DC max, 100mA) for PLC/BMS integration
Maximum demand (kW/kVAr/kVA) measurement
Configurable display scrolling (Auto/Manual)
Programmable password protection
Compact DIN-Rail mounting
Wide operating temperature: –10°C to +55°C
Low power consumption (< 8VA)
(Features from product table, page 1–2)
Technical Specifications (Table)
| Parameter | Specification |
|---|---|
| Model | EM2M-1P-C-100A |
| Display | 1 Row, 7-digit LCD with backlight |
| Wiring | 1Ø – 2W |
| Rated Voltage | 176–276V AC (self-powered) |
| Rated Current | Ib: 10A, Imin: 0.5A, Imax: 100A |
| Frequency | 45–65 Hz |
| Display Update Time | 1 second |
| Power Consumption | < 8VA |
| Pulse Output | 24V DC max, 100mA, 0.05–2 sec pulse width |
| Communication | RS-485 Modbus RTU |
| Baud Rates | 9600, 19200 bps |
| Parity | None / Odd / Even |
| Stop Bits | 1 or 2 |
| Transmission Distance | Up to 500 meters |
| Energy Resolution | 0.01 kWh |
| Accuracy – Voltage | ±0.5% FS |
| Accuracy—Current | ±0.5% Nominal |
| Accuracy – PF | ±0.01 |
| Accuracy – Power | ±1% FS |
| Active Energy | Class 1 |
| Reactive Energy | Class 2 |
| Operating Temp | –10°C to 55°C |
| Humidity | Up to 85% RH non-condensing |
| Mounting | DIN Rail |
| Tightening Torque | 1.5–2 Nm |
| Weight | 150 g |
| (The entire table sourced from page 1–2 of manual.) |
Applications
Industrial sub-metering
Commercial building metering
DG panel monitoring
Solar and renewable load metering
HVAC energy tracking
Panel builders & OEM integrations
Smart building energy management
What’s in the Box
1× Selec EM2M-1P-C-100A Meter
1× Installation Guide
1× Warranty Card
Protective packing
FAQ
Q1: Does this meter require CTs?
No. EM2M-1P-C-100A is a direct-connected 100A single-phase meter.
Q2: Does it support Modbus?
Yes, it supports RS-485 Modbus RTU, 9600/19200 bps.
Q3: What is the energy accuracy?
Active energy accuracy is Class-1 (IEC standard).
Reactive energy is Class-2.
Q4: Can it measure maximum demand?
Yes—Max Demand (kW, kVAr, kVA) is displayed on screen.
Q5: What communication distance is supported?
Up to 500 meters over RS-485.
Q6: What pulse output settings are available?
Pulse width: 0.05–2 sec, weight configurable (1/10/100/1000 pulses).