| |

Siemens’ New AFCI Twin Arc Fault and Plug on Neutral Breakers

June 14, 2023

Siemens' New Twin Arc Fault and Plug on Neutral Breakers

Siemens’ new Tandem AFCI circuit technology feeds two separate circuits from one breaker position. Twin AFCI circuit technology fits in new or existing construction and saves space in a loadcentre.  Available in Pig Tail or Plug on Neutral versions.

Tandem AFCI Breakers

Tandem AFCI breakers provide flexibility where traditional breakers can’t, making them suited for new construction and renovation projects.

  • Less space: only one Tandem AFCI feeds two circuits and minimizes the sub-feeding options
  • Increased safety with connection indicators
  • Flexibility options: both Plug-On Neutral and pigtail options are available

Plug on Neutral Breakers

The Plug on Neutral Breakers have a single load lug(s) only, wiring is made easier with the neutral lug removed. These breakers can be installed in the same manner as the thermal magnetic breakers in Siemens SNC loadcentres. This allows the installer to land ground and neutral conductors in the load center before installing the breaker and load conductor. The new design allows for the same reliable installation method using the neutral clip as the line side clip.

Siemens' New Twin Arc Fault and Plug on Neutral Breakers

Product Features

Tandem Combination Type AFCI Breakers
  • Expanded capabilities with tandem (twin) AFCI vs. competition: one breaker feeds two circuits to save on space and time
  • Allows for smaller load center needs due to combined position use
  • Additional space savings: Tandem AFCI minimizes the need for sub-feeding panels
  • Trusted indicator flags show when load wires are correctly inserted
  • LED trip indicators for ease of troubleshooting
  • Quicker installation with load lugs only
  • Tandem AFCI are available in pigtail and Plug-On Neutral types
Plug on Neutral Breakers
  • Wiring made easier with plug on CAFCI breakers now having a single lug only
  • Fast installation with less wires
  • Plug on neutral breakers can be installed in the same manner as a thermal magnetic (standard) breaker
  • Plug on Neutral breaker versions available for CAFCI, GFCI, CAFCI/GFCI (Dual function) breaker

More Information

Twin Arc Fault and Plug on Neutral Breakers

Related Story

Siemens and Eplan Enter Strategic Partnership

Siemens Smart Infrastructure and Eplan have signed a strategic partnership to strengthen collaboration in the area of software solutions for the industry and infrastructure market segments. As part of this agreement, Siemens’ Electrical Products business unit will join the Eplan Partner Network as a strategic partner. The objective is to coordinate the products of both companies in a more targeted manner in order to offer optimized solutions for switchgear manufacturers and electrical planners. Sebastian Seitz, CEO of Eplan, and Andreas Matthé, CEO of Electrical Products at Siemens Smart Infrastructure, signed the agreement to this effect on September 26, 2022.

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • Teaching Machines to See: Why Sensor Fusion Demands a System-Level Approach

    March 16, 2026 By David Doria, Director of Engineering, Automated Driving, Magna Electronics, March 16, 2026 For years, progress in advanced driver assistance systems (ADAS) were driven by improving individual sensors. Higher resolution cameras. Longer-range radars. More precise lidars. Each step delivered incremental gains. But optimizing sensors in isolation only goes so far. As ADAS Read More…

  • Vention Raises the Bar for Automating Automation with New Funding and Solutions

    March 9, 2026 By Krystie Johnston Vention accelerates democratization of automation with new funding and GRIIPTM, sets sites on Enterprise clients, reaches more industries and geographies Vention is on a journey to democratize automation, and they are picking up speed. Already, in Q1 of 2026, they have made two announcements that will accelerate their trajectory Read More…