ABB 2CMA100178R1000 B24 112-100 Energy Meter Steel Modbus RTU 3-Phase 1A DIN-Rail Kilowatt-hour Meter

The ABB B24 112-100 (SKU: 2CMA100178R1000) is a 3-phase kilowatt-hour meter from the B24 'Steel' series, designed for precise energy measurement with Modbus RTU communication in industrial and commercial installations. Featuring a 1A rated current input and compact DIN-rail form factor measuring 70mm × 26.5mm × 65mm, the B24 112-100 delivers reliable, MID-approved billing-grade accuracy for energy monitoring across a wide range of control panel and building automation applications.

Technical Specifications

Certifications & Standards

• IEC 62053-21: Accuracy class for active energy meters — billing-grade measurement conformance
• MID (Measuring Instruments Directive): EU-approved for legal-for-trade and billing energy metering applications
• UL 2799: Recognized under UL standards for electrical energy monitoring equipment
• CE: Compliant with applicable EU directives for the European market
• RoHS: Restriction of Hazardous Substances — free from restricted materials per EU Directive 2011/65/EU
• REACH: Compliant with EU REACH chemical substance regulation (EC) No 1907/2006
• WEEE: Registered under the EU Waste Electrical and Electronic Equipment Directive for responsible end-of-life disposal

Applications & Use Cases

• Sub-metering in commercial buildings, industrial facilities, and data centres
• Energy cost allocation in multi-tenant buildings and industrial parks
• Building management system (BMS) integration via Modbus RTU
• Control panel energy monitoring for industrial automation systems
• Renewable energy production and consumption tracking
• Compliance with legal metering requirements (MID-certified billing)