Energy Meter
DDR Multifunction DIN Rail Meter Series
The TPKELE DDR series is a family of slim 18mm DIN rail digital meters for monitoring voltage, current and frequency in low-voltage panels. Five display configurations are available — from a single-parameter voltage or current meter up to a combined voltage + current + frequency multi-parameter display and a 3-channel current meter. With AC 80–500V measurement range, 1% accuracy, IP20 protection and flame-retardant housing, the DDR series mounts on standard 35mm DIN rail to save panel space in distribution boards and control cabinets.
Key Features
- Five display configurations (voltage / current / frequency, single to multi-parameter)
- AC 80–500V measurement range, 1% accuracy
- Slim 18mm DIN rail body, IP20 protection
- Flame-retardant housing, ≥15,000 hours electrical life
- Class 1 active energy accuracy
Need full datasheet, drawing or certificates for tender?
Typical Applications
Product Types
| Type No. | Display Category | Channels | Notes |
|---|---|---|---|
| Type 1 | 1 CH Voltage + 1 CH Current + 1 CH Frequency Meter | 3 CH | Multi-parameter display |
| Type 2 | 3 CH Current Meter | 3 CH | Three-channel current monitoring |
| Type 3 | 1 CH Voltage + 1 CH Current Meter | 2 CH | Dual-parameter display |
| Type 4 | 1 CH Current Meter | 1 CH | Single current display |
| Type 5 | 1 CH Voltage Meter | 1 CH | Single voltage display |
Confirm the display configuration (Type 1–5) and required parameters before ordering.
Dimensions & Electrical Parameters
| Item | Specification |
|---|---|
| Front Height | 81 mm |
| Front Width | 18 mm |
| Overall Depth | 68 mm |
| Body Width (Top) | 45 mm |
| Side / Overall Height | 66 mm |
| DIN Rail Slot Width | 35 mm |
| Terminal for Wiring | L+N / 3L+3N |
| Measurement Voltage Range | AC 80V–500V |
| Measuring Accuracy | 1% |
| Measuring Rate | >200 ms / time |
| Protection Degree | IP20 |
| Electrical Life | ≥15,000 hours |
| Mounting | DIN rail |
| Air Relative Humidity | 1–80% (no condensation) |
| Working Temperature | -5℃ to +40℃ (daily average ≤35℃) |
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.
