Eaton RG403FAB3SFNNC Circuit Breaker Cassette - IEC 60947-2
Part Number: RG403FAB3SFNNC
Quick Summary
The Eaton RG403FAB3SFNNC is a low voltage power circuit breaker cassette designed for industrial switchgear protection. Engineers often struggle to source a compatible, on-site wired solution that fits NRX frames, meets the 4000 A rating, and aligns with established wiring practices. IEC 60947-2 certification and a one-year warranty provide regulatory confidence and long-term value, reducing compliance risk across projects. By leveraging NRX RF IEC Cassette compatibility, this unit supports modular expansion, easier spare-part stocking, and reliable protection in harsh industrial environments, delivering consistent performance for OEMs and maintenance teams while simplifying procurement and installation workflows. This approach minimizes project delays and helps maintenance teams standardize across sites.
Product Information
Extended Description
RG403FAB3SFNNC Eaton: Eaton Power Defense ICCB low voltage power circuit breaker cassette, OEM NRX RF IEC Cass, 3P, 4000A, no pre-wired
Product Name
Eaton Series NRX low voltage power circuit breaker cassette
Catalog Number
RG403FAB3SFNNC
UPC
786679193549
Product Length/Depth
18 in
Product Height
24 in
Product Width
24 in
Product Weight
60 lb
Warranty
1 year
Certifications
IEC 60947-2
Catalog Notes
NRX RF IEC Cass, 3P, 4000A, no pre-wired
Type
Cassette
Amperage Rating
4000 A
Frame
RF
Series
Series NRX
Number of poles
Three-pole
Feature: Three-pole NRX RF frame with a 4000 A amperage rating. Benefit: Enables high-capacity protection with robust fault-current handling, reducing the chance of nuisance trips during peak loads. Application: Large motor control centers and distribution panels where uptime is critical and system loads are high. Feature: NRX Series compatibility. Benefit: Seamless integration with existing NRX frames, enabling modular replacement and scalable protection without redesign. Application: Retrofit projects and OEM equipment that require consistent NRX compatibility across generations. Feature: IEC 60947-2 certification. Benefit: Regulatory alignment across global markets, simplifying procurement for multi-site deployments. Application: Compliance-driven facilities and projects with strict LV protection standards. Feature: No pre-wired configuration. Benefit: On-site wiring flexibility to tailor connections to site-specific layouts and wiring practices, reducing pre-wiring constraints. Application: Custom installations in control panels and switchgear where wiring routing is unique. Feature: 1-year warranty. Benefit: lifecycle risk reduction and predictable maintenance budgeting. Application: Industrial environments where long-term reliability and vendor support are essential. Feature: Catalog notes include 3P, 4000A, RF IEC Cass. Benefit: Clear installation context and compatibility guidance to streamline ordering and stocking. Application: OEM and service teams managing spare parts for NRX-based systems.
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FAQs
The RG403FAB3SFNNC is a three-pole NRX RF IEC cassette designed for Eaton NRX frames. It pairs with 3P, 4000 A systems and fits into standard NRX switchgear configurations, enabling straightforward substitution or expansion without changing surrounding hardware.
Key specs include three poles, RF frame, 4000 A amperage rating, and IEC 60947-2 certification. The unit measures 18 in depth, 24 in height, and 24 in width with an approximate weight of 60 lb, and it carries a 1-year warranty.
Yes. Its NRX RF IEC Cassette form factor and 3P 4000 A rating make it ideal for retrofits in existing NRX-based switchgear. Because it is not pre-wired, on-site wiring allows customization to match current layouts while preserving protective performance.
The product is IEC 60947-2 certified, which ensures compliance with global LV protection standards. This supports cross-border procurement and helps mitigate regulatory risk during audits and commissioning.
Plan for on-site wiring due to the no pre-wired design, account for the cassette’s 60 lb weight and 24 x 24 x 24 in footprint, and rely on the 1-year warranty for support. Ensure NRX frame compatibility and proper torque on connections to maintain reliability.