ABB M1M panel-mounted multimeters and power meters provide electrical measurement for distribution panels and energy monitoring. This page covers standard M1M 15, M1M 20 and M1M 30 ordering references documented by ABB. Select the measurement functions and communication version before requesting a quotation.
M1M 15, 20 & 30: Measurement Choices

M1M 15
Basic multifunction electrical measurements for monitoring distribution panels and allocating energy costs.

M1M 20
Adds import/export energy, four-quadrant measurement and THD for electrical monitoring and basic power-quality checks.

M1M 30
Adds individual harmonics up to the 40th and internal data logging for more detailed analysis and demand management.
Communication & Installation Checks
Communication depends on the complete order code: the documented range includes versions without a wired protocol, Modbus RTU versions and Ethernet versions using Modbus TCP/IP. I/O versions have their own ordering references; do not assume all versions include the same inputs, outputs or logging functions. Confirm the auxiliary supply, wiring system, current-transformer input and panel cut-out against the exact product documentation.
For additional analyzer functions, review ABB M4M Network Analyzers and compare the exact requirements.
ABB M1M Models & Order Codes
These nine standard references come from ABB’s published ordering table. They are a model-identification reference, not an exhaustive regional catalogue or an availability statement.
Request a quotation with the complete model, quantity and installation details.
| Product Model | ABB Order Code | Wired Communication |
|---|---|---|
| M1M 15 | 2TAZ661010R2000 | No wired protocol |
| M1M 15 Modbus | 2TAZ661012R2000 | Modbus RTU |
| M1M 20 | 2TAZ662010R2000 | No wired protocol |
| M1M 20 Modbus | 2TAZ662012R2000 | Modbus RTU |
| M1M 20 Ethernet | 2TAZ662014R2000 | Modbus TCP/IP |
| M1M 20 I/O | 2TAZ662012R2001 | Modbus RTU |
| M1M 30 Modbus | 2TAZ663012R2000 | Modbus RTU |
| M1M 30 Ethernet | 2TAZ663014R2000 | Modbus TCP/IP |
| M1M 30 I/O | 2TAZ663012R2001 | Modbus RTU |
ABB Technical Documentation
ABB Panel Meter Portfolio (PDF) — M1M standard ordering references and measurement comparison, printed page 24.
Request a M1M Quotation
Send the full M1M model, ABB order code, quantity and destination country. Include required communication, measurement and logging functions, auxiliary supply and CT details. For an existing installation, attach the nameplate and panel information.