EcoFit LV switchgear life extension for aging LV panels

Upgrade the breaker. Not the whole panel

LV switchgear retrofitting replaces aging ACBs with Schneider’s MVS/NW/MTZ breakers using engineered R-Fit kits and EcoFit Life Extension Advanced — giving you modern protection, digital readiness, and long-term reliability without rebuilding your board

Explore More

Old breakers fail quietly. Then suddenly.

Aging LV panels struggle with worn contacts, slow mechanisms, rising heat, and zero visibility. That means surprise trips, risky clearances, and failures that stop production when you need power the most.

Worn ACB mechanisms

No thermal or status visibility

Rising busbar temperatures

Unpredictable trips

Costly shutdowns for replacement

Meet R-Fit — the smarter way to modernize LV switchgear

R-Fit is Schneider Electric’s engineered LV ACB retrofit solution for legacy panels. It swaps your old air circuit breaker with a modern MVS, NW or MTZ unit — all inside the same chassis and busbars. No civil work. No rewiring. No long shutdowns. Paired with EcoFit Life Extension Advanced, you get digital monitoring, predictive alarms, cloud connectivity, and OEM-grade commissioning. The result? A modern, safer, data-ready LV system inside your existing panel — ready for today’s uptime, compliance and sustainability demands.

Meet R-Fit — the smarter way to modernize LV switchgear
Meet R-Fit — the smarter way to modernize LV switchgear

Upgrade fast. Switch smarter. Fail less

A modern ACB without touching your panel

Plug-and-play retrofitting

Pre-engineered kits replace the breaker in the same chassis — usually within 30 minutes

Minimal shutdowns

Most sites finish in 3–5 hours, versus 9–12 hours for conventional retrofits

Better reliability, tested at factory

Each kit is type-tested for temperature rise and mechanical alignment as per IEC 60947-2

Modern protection and intelligence

Smart ACBs enable alarms, energy data, and predictive maintenance via SMD/Digital Box and EcoStruxure.

Lower capex, longer life

Retain busbars and cubicles. Avoid panel rebuilds. Extend asset life with OEM-backed service.

Cleaner installation, safer operation

Precise mechanical interfaces, new doors/frames, interlocks and proper clearances ensure OEM safety

Engineered for compatibility and long life

Pre-tested kits. Proven architecture. Digital-ready design

Engineered for compatibility and long life
Engineered for compatibility and long life

R-Fit LV ACB Retrofit Range

For 27 legacy ACB models across Schneider, ABB, Siemens, GE and L&T

Supports 800–3200 A, 3P/4P

Horizontal/vertical rear terminals

Minimum panel width: typically 550 mm

Side clearances: 60–100 mm depending on OEM

R-Fit rear connectors

Base plates and hardware

New door and door frame

ACB (MVS / NW / MTZ) with coordinated terminals

OEM modernization of ACBs and contactors

SMD LV Box / Digital Box / Satellite Modbus for data

Network configuration for EcoStruxure

Commissioning, reporting and training

SMD LV Box (local HMI + alarms)

Digital Box (IoT gateway)

Satellite Modbus TCP Box for remote sensors

Where R-Fit makes the biggest impact

Ideal for aging low-voltage panels that can’t afford downtime.

Industrial LV switchboards

MCCs and PCCs

Process plants with frequent switching

Critical manufacturing feeders

Backup power and DG panels

Infrastructure LV rooms

Utilities and distribution panels

Trusted wherever uptime is non-negotiable

Retrofit solutions for LV systems that run round the clock

Manufacturing & Automotive

Manufacturing & Automotive

Manufacturing & Automotive

Process Industries & Chemicals

Data Centers

Utilities & Power Distribution

Mining & Metals

nfrastructure & Commercial Facilities

Modernize your LV panel. Without rebuilding it

Replace aging ACBs with OEM-tested breakers, digital insight, and minimal downtime

Get A Quote
Get A Quote
0 Enquiry List