NewTrend · compact single-phase energy metering
Product overview
The SDM220-ECL is a compact single-phase two-wire meter for local energy and electrical-parameter readings. Rated 5(80)A at 220–230V AC, 50/60Hz, it rotates through accumulated energy, voltage, current and active power on its LCD. Choose a version without backlight, with blue backlight or with white backlight.
Technical selection summary
| Model | SDM220-ECL |
|---|---|
| System | Single-phase two-wire AC |
| Rated voltage | 220–230V AC |
| Rated / maximum current | 5(80)A |
| Frequency | 50/60Hz |
| Accuracy | Class 1 on the illustrated nameplate |
| Readings | Accumulated active energy, voltage, current and active power |
| Display | LCD with automatic rotating readings |
| Backlight options | Without backlight, blue backlight or white backlight |
| Reset control | No front reset button |
| Pulse indication | Energy-pulse LED |
| Pulse constant | 2000imp/kWh |
| Pulse output | Optically isolated pulse output |
| Mounting | 35mm DIN rail; two-module format |
| Dimensions | 78.4mm high × 36.6mm wide × 66mm deep |
| Outline references | 20.7mm terminal-centre spacing; 62.3mm body-height reference; 36.3mm rail section; 44.8mm front-section height; 27.8mm depth reference |
Automatic energy, voltage, current and power display
The LCD automatically rotates between total active energy in kWh, supply voltage in V, current in A and active power in W. The front panel has no reset button, keeping accumulated energy as a continuous local reading. The display illustration below shows the available measurement screens.
Pulse indication and output
The energy-pulse LED indicates metering activity according to the connected load. The pulse constant is 2000imp/kWh, and the optically isolated pulse output supports external energy counting.
Single-phase wiring
The connection photographs show the L and N terminals and the supported supply arrangements. Follow the input/output labels and wiring diagram for the installation. Isolate the circuit before wiring or servicing, and fit suitable upstream protection.
Connection diagrams
The schematic diagrams preserve the shown supply and load connections for the meter. Maintain the correct phase and neutral paths, secure the terminal covers and verify conductor suitability before energizing.
Dimensions and DIN-rail mounting
The meter is 78.4mm high, 36.6mm wide and 66mm deep, occupying approximately two standard modules on a 35mm DIN rail. The outline drawing also identifies terminal-centre spacing and the rail and front-section references.
Typical applications
For residential and commercial submetering, individual appliance and machine energy monitoring, distribution-board consumption checks and local kWh allocation. The rotating display provides electrical readings without an external display unit.
