ABB – 2CMA261221R1000 (EV1 012‑100) – 1-Phase Kilowatt-Hour Energy Meter

The ABB 2CMA261221R1000 (also known as EV1 012‑100) is a DIN-rail mounted electronic kilowatt-hour meter designed for single-phase systems. Class B (or Class 1) accurate and MID-approved, it features Modbus RTU communication and supports 1-tariff metering. Compatible across various voltages and currents, it meets EU measurement regulations and is suitable for both industrial and commercial installations.

Key Features:

• Model / P/N: 2CMA261221R1000 (Type EV1 012‑100)  

• Meter Type: 1-phase electronic energy meter with direct measurement up to 65 A  

• Accuracy Class: Class B (equivalent to Class 1) and MID-certified  

• Voltage Range: 220–240 V (N‑L); 380–415 V (L‑L) AC, 50 Hz  

• Nominal / Maximum Current: 5 A nominal, up to 65 A max  

• Mounting: DIN-rail adapter, 2-module width (35 mm)  

• Communication: Modbus RTU (RS‑485) interface  

• Display: 6-digit display with hidden decimal for kWh reading ()

• Protection Rating: IP21 suitable for indoor panel use  

• Dimensions: 90 × 35 × 62 mm; weight ~130 g  

• Compliance: CE marked and following MID directive standards