SO Pulse Output
SO Pulse Output (90 ms width, terminals 20/21) feeds kWh pulses to external AMR, sub-metering and billing systems.
DDS353G 50 A Single-Phase DIN-Rail MID Sub-Billing Energy Meter
DDS353G is a single-phase two-wire DIN-rail energy meter with an analogue 5+1 counter display, direct-connected up to 50 A with Class B accuracy. It measures energy with an SO pulse output for remote reading. MID B+D certified for legal sub-billing.
DIN-Rail Mounting
1P2W Direct Connection
MID B+D Certified
MID
50 A Maximum current (Imax)
230 V Rated voltage
Class B Active energy accuracy
−25°C to +55°C Operating temperature
Product Highlights
Compact Single-Phase DIN Rail Metering with Analogue Display
Class B Active Energy Accuracy
Class B accuracy meets EN 50470-1/3 for reliable single-phase energy measurement.
Analogue 5+1 Counter Display
Mechanical 5+1 counter reads to 99999.9 kWh with no backlight or standby power for maintenance-free lifetime reading.
Low Start Current
0.004 Ib starting current captures small standby and low-load consumption for accurate billing.
Three Pulse-Rate Options
Default 1000 imp/kWh with 2000 and 100 imp/kWh options to match downstream AMR and billing hardware.
IP51 Indoor Enclosure
IP51-rated enclosure resists dust and condensation for indoor panel and sub-metering installations.
Applications
Applications and Selection Guidance
EV Charging Metering
Solutions for AC/DC charging, billing and charging platform integration.
Explore ApplicationSolar PV & ESS Metering
DC/PV monitoring for inverters, storage systems and distributed energy monitoring.
Explore ApplicationC&I Sub-Metering
Branch metering for buildings, factories, tenants and energy allocation.
Explore ApplicationTechnical Specifications
Technical Specifications
| Voltage connection | Direct connection |
| Rated voltage | 230 V |
| Frequency | 50 Hz |
| Current connection | Direct connection |
| Rated current | 0.25–5(50) A |
| Start current | 0.004 Ib |
| Impulse constant | 1000 imp/kWh (default), 2000 imp/kWh, 100 imp/kWh |
| Power consumption | ≤8 VA / ≤0.4 W |
| Active energy accuracy | Class B |
| Output type | SO Pulse Output |
| Pulse width | 90 ms |
| Pulse terminals | 20, 21 (calibration) |
| Display | Counter 5+1 (99999.9 kWh) |
| IP rating | IP51 (indoor) |
| Installation | 35 mm DIN rail, 1-module (18 mm) |
| Operating temperature | −25°C to +55°C |
| Humidity | ≤75% average, ≤95% maximum |
| Applicable standards | EN 50470-1, EN 50470-3 |
Structure & Dimensions
DDS353G Dimensions & Wiring
Dimensions
Wiring
FAQ
Product FAQ
What is DDS353G?
DDS353G is a single-phase DIN-rail MID-certified energy meter with an analogue 5+1 counter display, direct-connected up to 50 A.
What connection type does DDS353G use?
Direct connection, single-phase two-wire (1P2W), rated up to 50 A.
What display does DDS353G use?
A mechanical 5+1 counter reading to 99999.9 kWh, requiring no backlight or standby power.
What output does DDS353G provide?
SO Pulse Output (90 ms width, terminals 20/21) for remote meter reading.
What pulse-rate options are available?
1000 imp/kWh by default, with 2000 and 100 imp/kWh options.
What is the accuracy class?
Class B active-energy accuracy in accordance with EN 50470-1/3.
What is the certification status?
MID B+D certified, suitable for legal sub-billing.
Product Downloads
Product Datasheet Download
Datasheet
DDS353G Product Datasheet
Official DDS353G datasheet covering product overview, specifications, wiring and dimensions.
Download PDF- Product overview and features
- Technical specifications
- Wiring diagrams and dimensions
Need a Smart Metering Solution for Your Project?
Tell us your requirements and our team will provide a professional solution and quotation within 24 hours.
Quick ResponseReply within 24 hours
Expert SupportEngineer-to-engineer
Custom SolutionsProject-ready from spec
Long-term PartnerSingle point of contact
