ABB B23 112-100

The ABB B23 112-100 is a direct-connected three-phase DIN-rail meter for projects that want dependable panel metering rather than a consumer-style monitoring experience. It fits best when the meter is one component inside a broader electrical, solar, or building-controls design and the buyer already expects installer setup plus Modbus-based integration.

What it is best at

  • three-phase import and usage metering in switchboards, sub-metering panels, and integration-led energy projects
  • electrician-led installs where a compact 2-DIN footprint matters
  • Modbus RTU workflows that feed a gateway, inverter ecosystem, BMS, or automation platform instead of a branded homeowner app
  • buyers who prefer established electrical-hardware brands and formal metering documentation over app polish

Why someone would choose it

ABB's current B-series materials still position the B23 family as a direct-connected three-phase meter for 3-wire and 4-wire systems up to 65 A, with RS-485 Modbus RTU communication and MID / IEC-oriented metering credentials. In practice, that makes this model more attractive for solar switchboards, landlord or tenant sub-metering, and control-panel integration than for someone who just wants easy phone-based whole-home visibility.

Where it fits best

This meter makes the most sense when the project wants:

  • a compact DIN-rail meter from a mainstream electrical brand
  • direct connection without moving into CT-based meter hardware for higher-current applications
  • a clean Modbus RTU path into third-party monitoring or controls
  • a meter that can sit inside a professional electrical build instead of acting like a standalone consumer product

Where to be careful

The B23 112-100 is a weak fit for households that want clamp-style retrofit installation, a polished native app, or quick DIY visibility without touching the switchboard. It is also not the right choice when the job really needs CT-operated metering for larger services or a more homeowner-readable ecosystem with built-in cloud dashboards.

Practical buying take

Choose the ABB B23 112-100 when the real need is reliable three-phase panel metering with Modbus RTU in a professional install. Skip it when the buyer's actual goal is simpler whole-home energy awareness, faster retrofit work, or richer app-led guidance from day one.