The ABB B ‑ (CMAR) is a compact, high-accuracy energy meter for direct-connected three-phase installations up to  A. Featuring a -digit backlit LCD, extensive electrical parameter monitoring, and a Modbus-RS interface, it’s ideal for commercial, residential, or industrial energy management. MID-certified for billing use and equipped with configurable pulse or alarm output.

Key Features

Model: B ‑ (ABB P/N CMAR)
Connection: Direct‑connected, -phase (- or -wire), up to  A
Voltage Range:  –  V L‑N,  –  V L‑L, / Hz
Accuracy: MID Class B (~±%) for active energy; Class for reactive energy
Display: -digit back-lit LCD; shows energy, voltage, current, power, power factor, frequency per phase & total
Communication:

– RS‑ with Modbus RTU and infrared (for KNX module integration)
Pulse/Alarm Output: Configurable S pulse or alarm; supports up to threshold/alarm settings
Operating Range: – °C to + °C; IP rating; DIN-rail mount, -module width
Dimensions:  mm width,  mm depth, . mm height
Certifications: IEC ‑/; MID, RoHS, CE; rated for direct billing applications

ABB – B23 212-100 (2CMA100166R1000) – 3-Phase DIN-Rail Energy Meter, 65 A

ABB – B23 212-100 (2CMA100166R1000) – 3-Phase DIN-Rail Energy Meter, 65 A