SO Pulse Output
SO output for active kWh with configurable pulse constant (default 1000).
DEM4B009 80 A Three-Phase DIN-Rail Energy Meter with Infrared Communication
DEM4B009 is a 3P DIN-rail, direct-connected three-phase energy meter rated up to 80 A with Class 1.0 (Class B) accuracy. It supports infrared (IR) communication and SO pulse output with variable pulse constant. MID B+D certified by SGS UK.
DIN-Rail Mounting
3P4W Direct Connection
MID B+D Certified
MID
80 A Maximum current
3×230/400 V Rated voltage
Class 1.0 Active energy accuracy
−25°C to +70°C Operating temperature
Product Highlights
Built for certified, flexible three-phase submetering
Class 1.0 Active Energy Accuracy
Class 1.0 (Class B) active-energy measurement in accordance with EN 50470-3 and IEC 62053-21.
Infrared (IR) Communication
Infrared (IR) communication for meter reading.
Multiple Metering Modes
Supports 4 metering modes: Forward only, Reverse only, Forward + Reverse (default), and Forward − Reverse.
MID B+D Certified by SGS UK
MID B+D certified, confirming accuracy and quality for sub-billing applications across the EU.
Streamlined Cost-Effective Design
Streamlined configuration focused on core energy metering, delivering reliable Class 1.0 measurement at a cost-effective price point for high-volume deployment.
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Rack, cabinet and distribution power monitoring for data center operations.
Explore ApplicationTechnical Specifications
Technical Specifications
| Voltage connection | Direct connection |
| Rated voltage | 3 × 230/400 V |
| Frequency | 50/60 Hz |
| Current connection | Direct connection |
| Rated current | 0.25–5(80) A |
| Start current | 0.4% (20 mA) |
| Pulse constant | 1000 imp/kWh |
| Power consumption | ≤2 W / 10 VA |
| Active energy accuracy | Class 1.0 / Class B (IEC 62053-21) |
| Communication interface | Infrared (IR) |
| Communication type | Unidirectional |
| LCD display | 6+2 (7+1), scrolling display; voltage, current, energy, power, frequency |
| Operating temperature | −25°C to +70°C |
| Relative humidity | ≤95% |
| Altitude | ≤2000 m |
| IP rating | IP51 indoor |
| Protection class | Class II |
| UC class | UC2 |
| Wiring configuration | Three-phase four-wire (3P4W) |
| Applicable standards | EN 50470-3:2022 / EN IEC 62052-11:2021/A11:2022 / IEC 62052-31:2015 |
Structure & Dimensions
DEM4B009 Wiring & Dimensions
Wiring
Dimensions
FAQ
Product FAQ
What is DEM4B009?
DEM4B009 is a 3P DIN-rail, direct-connected three-phase energy meter rated up to 80 A with Class 1.0 (Class B) accuracy. It supports infrared (IR) communication and SO pulse output with variable pulse constant. No LCD backlight, no internal battery, no power outage display. MID B+D certified by SGS UK.
What connection type does it use?
Direct connection, three-phase four-wire (3P4W).
What communication interface does DEM4B009 use?
Infrared (IR) communication for meter reading.
What is the difference between DEM4B009 and DEM4B003?
DEM4B009 uses infrared communication. DEM4B003 uses RS485 communication with Modbus RTU and DL/T 645-2007 protocols.
What is the certification status?
MID B+D certified by SGS UK.
What metering modes are supported?
Forward, Reverse, Forward + Reverse (default), and Forward − Reverse.
Product Downloads
Product Datasheet Download
Datasheet
DEM4B Series Product Datasheet
Official DEM4B series datasheet covering product overview, specifications, wiring and dimensions.
Download PDF- Product overview and features
- Technical specifications
- Wiring diagrams and dimensions
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