Energy Meter
DDS Series Digital Energy Meter (DDS662 / DDS667 / DDS668)
The TPKELE DDS series is a family of single-phase 2-wire DIN rail digital energy meters available in three feature tiers. DDS662 covers core metering (LCD display, energy, voltage, power and current). DDS667 adds backlight, temporary power mode, manual switching, zero reset and frequency detection. DDS668 is the full-feature model, adding power factor display. All three mount on standard 35mm DIN rail and support universal AC 230V / 110V, 50/60Hz systems — select the model and voltage version that matches your project.
Key Features
- Three feature tiers: DDS662 / DDS667 / DDS668
- Single-phase 2-wire, AC 230V / 110V universal, 50/60Hz
- 35mm DIN rail mounting
- LCD digital display with up to power-factor readout (DDS668)
- Class 1 active energy accuracy
Need full datasheet, drawing or certificates for tender?
Typical Applications
Feature Comparison
| Function | DDS662 | DDS667 | DDS668 | Notes |
|---|---|---|---|---|
| LCD Display | ✓ | ✓ | ✓ | Digital display screen |
| Energy Metering | ✓ | ✓ | ✓ | kWh measurement |
| Voltage Measurement | ✓ | ✓ | ✓ | AC voltage monitoring |
| Power Measurement | ✓ | ✓ | ✓ | Active power display |
| Current Measurement | ✓ | ✓ | ✓ | Current display |
| Backlight Function | — | ✓ | ✓ | Backlight display available |
| Temporary Power Mode | — | ✓ | ✓ | Temporary power mode supported |
| Manual Switching | — | ✓ | ✓ | Manual display switching |
| Zero Reset | — | ✓ | ✓ | Energy reset function |
| Frequency Detection | — | ✓ | ✓ | Frequency display |
| Power Factor | — | — | ✓ | PF display function |
Dimensions & Installation Data
| Item | Specification | Description |
|---|---|---|
| Product Front Width | 36 mm | Front view width |
| Side Top Width | 45 mm | Side profile top width |
| Product Height | 78 mm | Front view height |
| Side Height | 66 mm | Side profile height |
| DIN Rail Mounting | 35 mm | Standard DIN rail mounting |
| Product Type | Single Phase 2 Wire Digital Energy Meter | DIN rail energy meter |
Product Voltage Parameters
| Model | Rated Voltage | Frequency | Voltage Type | Applicable System | Remark |
|---|---|---|---|---|---|
| DDS662 | AC 230V / 110V | 50Hz / 60Hz | Voltage Universal | Single Phase 2 Wire | Universal voltage version |
| DDS667 | AC 230V or AC 110V | 50Hz / 60Hz | Model-dependent | Single Phase 2 Wire | Select voltage version before order |
| DDS668 | AC 230V or AC 110V | 50Hz / 60Hz | Model-dependent | Single Phase 2 Wire | Enhanced display functions |
Ordering notes: 1) Confirm model (DDS662 / DDS667 / DDS668) before ordering. 2) Confirm rated voltage version: AC 230V, AC 110V, or universal voltage version. 3) Confirm whether backlight, zero reset, frequency detection and power factor display are required.
Certifications & Standards
Verified to international standards for global tenders
OEM / ODM Available
Private label this Energy Meter for your brand
Logo, color housing, packaging and certificate documentation tailored to distributor and brand-owner programs.
- Custom logo printing on housing and packaging
- Color housing variants for product line differentiation
- Private-label catalogs and datasheet customization
- Project-spec drawings, single-line diagrams and labels
- Container-load supply with export documentation
- Sample preparation within 5–10 working days
Frequently Asked Questions
Do you support Modbus communication?
Yes — RS485 Modbus output is available on selected models for integration with energy management, BMS and SCADA systems.
What accuracy class do the meters offer?
Standard meters meet Class 1 active energy accuracy per IEC 62053-21, suitable for sub-metering and operational monitoring. Higher accuracy available on request.
Direct connect vs CT operated — which do I need?
Direct-connect meters wire the load current directly through the meter, suitable up to 80A or 100A. CT-operated meters use external current transformers for higher currents (typically 100A and above).
Are the meters MID approved?
Standard models are CE / IEC certified. MID-approved versions for billing applications in the EU are available on request.
