The ECBD009 combined multi-user energy meter adopts a modular design, enabling a maximum of 12 channels of three-phase measurement or 36 channels of single-phase direct-connected measurement, as well as up to 12 channels of three-phase CT-connected measurement. It also supports mixed measurement configurations combining direct connection and CT connection.
With high accuracy, centralized installation, centralized management, flexible installation options, and mutual non-interference between channels, this series of energy meters is widely favored in residential communities, schools, and enterprises. The series supports prepaid energy functions and complies with the national standard GB/T 17215.322-2008.
• High Cost-Effectiveness: One communication & display module supports up to 12 metering control modules, enabling measurement of up to 36 single-phase circuits or 12 three-phase circuits.
• Easy Maintenance: The communication & display module is separated from the metering control modules, allowing partial module replacement only.
• Communication Methods: RS485 / LoRa communication; multiple meters share a single communication & display module for installation.
• Easy Installation: DIN rail mounting, compact size, standard RJ45 bus ports for fast modular assembly.
• Billing Functions: Measures each user’s total energy consumption (forward + reverse), supports prepaid metering, power disconnection for arrears, and multiple payment options.
• Relay Control: Supports power cut-off for arrears, scheduled power disconnection, overload protection disconnection, and forced power-off control.
| Energy Accuracy Class | Class 0.5S |
| Clock Accuracy | ≤ 0.5 s/day |
| Communication Interface | RS485 interface / infrared communication |
| Communication Protocol | DL/T 645-2007 |
| Operating Temperature | −20 °C to +60 °C |
| Storage Temperature | −30 °C to +70 °C |
| Ambient Humidity | ≤ 95% RH, non-condensing, free of corrosive gases |
| Installation Altitude | ≤ 2000 m |
| Pulse Output | Each three-phase metering module provides one active energy pulse output. |
| Pulse Width | 80 ms ± 20 ms |
| Pulse Constant |
For 3 × 1(6) A rating: 6400 imp/kWh For 3 × 10(80) A rating: 400 imp/kWh |
| Voltage Input – Rated Voltage | 3 × 220/380 V / 3 × 57.7/100 V |
| Voltage Input – Reference Frequency | 50 Hz |
| Current Input – Rated Current | 3 × 1(6) A (CT connection) / 3 × 10(80) A (direct connection) |
| Current Input – Starting Current | 1‰ Ib |
| Digital I/O – Main Module | 2 DI + 2 DO; DI configured as dry contact inputs. |
| Digital I/O – Sub-module | 4 DI + 4 DO; DI configured as 220 V wet contact inputs. |
| Power Consumption | ≤ 10 W |
| DI Channels | Main module: 2 DI; Sub-module: 4 DI |
| DO Channels | Main module: 2 DO; Sub-module: 4 DO |
| Installation Method | DIN rail mounting |
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