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- ABB 2TAZ665052R2001 D1M 20 Modbus RTU 1-3 Phase Class 0.5 Power Meter Energy Analyzer ABB 2TAZ665052R2001 D1M 20 Modbus RTU 1-3 Phase Class 0.5 Power Meter Energy Analyzer
ABB 2TAZ665052R2001 D1M 20 Modbus RTU 1-3 Phase Class 0.5 Power Meter Energy Analyzer
ABB 2TAZ665052R2001 D1M 20 Modbus RTU 1-3 Phase Class 0.5 Power Meter Energy Analyzer
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- Description
The ABB 2TAZ665052R2001 (D1M 20 Modbus) is a DIN-rail power meter for 1-phase or 3-phase systems with Modbus RTU over RS-485, accepting 1 A or 5 A current inputs up to 300 V AC. It delivers Class 0.5 active-energy accuracy per IEC 61557-12 with an LCD display and 2 digital inputs plus 2 digital outputs.
Technical Specifications
| Catalog Designation | D1M 20 Modbus |
| SKU | 2TAZ665052R2001 |
| Brand | ABB |
| Series | Network Analyzers and Multimeters |
| EAN | 6941593481170 |
| Accuracy | Active Energy ±0.5% |
| Measuring Range | Max Voltage AC 300 V, Max Current AC 6 A, Max Frequency 60 kHz |
| Number of Phases | 1-phase / 3-phase |
| Communication | Modbus RTU |
| Rated Voltage (Ur) | 80-300 V AC (L-N) |
| Rated Current (In) | 1 A / 5 A |
| Frequency | 50-60 Hz |
| Power Consumption | Maximum 5 V·A |
| Digital I/O | 2 inputs, 2 outputs |
| Type of Indicator | Analogue/digital (LCD) |
| Degree of Protection | IP51 |
| Pollution Degree | 2 |
| Ambient Temperature | Operation -5 to 55°C / Storage -25 to 70°C |
| Mounting | DIN-Rail |
| Width | 52.5 mm |
| Height | 89 mm |
| Depth | 63.5 mm |
| Weight | 0.252 kg |
Certifications & Standards
- IEC 61557-12
- IEC 62053-22
Selection Notes
Modbus RTU over RS-485 lets the D1M 20 Modbus report into an existing serial bus rather than requiring an Ethernet drop, while its Class 0.5 accuracy stays tighter than a Class 1 multimeter for sub-billing use. The 1 A / 5 A dual current range and 1-phase/3-phase switching match the same panel sizes as the rest of this power-meter range. Choose the Ethernet TCP/IP variant instead when the installation already has network wiring to the panel.