Eaton 2100RNM-A2 Main Lug Loadcenter - NEMA 3R
Part Number: 2100RNM-A2
Quick Summary
Eaton BR main lug loadcenter provides compact, reliable power distribution for 120/240 V systems in residential and light commercial settings. Designers often grapple with limited space, challenging wiring layouts, and corrosion risk in non-metallic enclosures. UL Listed components, a NEMA 3R enclosure, and a 10-year warranty deliver regulatory confidence and long-term durability in harsh environments. By pairing a 100 A rating with aluminum bus and compatibility with #14-2 Cu/Al conductors, this unit streamlines installation and reduces field labor. Its 2 circuits across 4 spaces enable scalable panel configurations, while remaining lightweight and easy to mount. This combination supports faster commissioning, lower total cost of ownership, and dependable service life for critical feeders.
Product Information
Extended Description
2100RNM-A2 Eaton: Eaton BR main lug loadcenter,Main lug only,100 A,Aluminum,Non-metallic,NEMA 3R,2 Circuits,4 Spaces,Single-phase,120/240 V,#14-2 AWG Cu/Al
Product Name
Eaton BR main lug loadcenter
Catalog Number
2100RNM-A2
UPC
786676208109
Product Length/Depth
6.5 in
Product Height
8.5 in
Product Width
1.5 in
Product Weight
1.5 lb
Warranty
10 year
Certifications
UL Listed
Type
Main lug only
Amperage Rating
100 A
Bus material
Aluminum
Number of circuits
2
Number of spaces
4
Phase
Single-phase
Voltage rating
120/240 V
Wire size
#14-2 AWG Cu/Al
Color
Non-metallic
Enclosure
NEMA 3R
Interrupt rating
10 kAIC
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - 2100RNM-A2
Eaton type BR circuit breaker limited warranty June 2024
100 A amperage rating enables a compact, cost-effective main lug option for residential service feeders and light commercial panels. This reduces enclosure size, minimizes heat rise, and simplifies overcurrent protection coordination, accelerating installation and lowering labor costs. Application: ideal for 120/240 V single-phase systems in homes and small businesses. Aluminum bus material delivers a lighter-weight assembly with robust conductivity and corrosion resistance, improving handling during retrofit and field installation while enhancing worker safety. Application: suitable for new installations and upgrades in constrained spaces. Two circuits across four spaces offer modest expansion potential without requiring a larger enclosure, supporting essential branch circuits with room for future add-ons. Application: small commercial service panels and compact subpanels. Non-metallic, NEMA 3R enclosure provides weather resistance for outdoor or damp locations while maintaining code-compliant protection. Application: outdoor installations in covered areas. 120/240 V single-phase rating and compatibility with #14-2 Cu/Al wires align with common electrical codes and installation practices. Application: residential feeders and light commercial distribution. The 10 kAIC interrupt rating adds fault tolerance for small service feeders, ensuring better protection. Warranty support and UL Listing reinforce reliability, helping maintenance teams plan proactively and reduce lifecycle costs.
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FAQs
The 2100RNM-A2 is a 100 A, 2-circuit main lug loadcenter with a 4-space enclosure designed for 120/240 V single-phase service. Install in a non-metallic NEMA 3R rated enclosure, connect #14-2 Cu/Al conductors to the lugs, and route conductors to compatible branch breakers as per NEC guidelines. Use UL Listed wiring methods and maintain proper clearances to ensure safe operation and compliance.
This loadcenter is UL Listed and features a NEMA 3R enclosure, suitable for outdoor or damp environments when installed as directed. It supports a 100 A rating and a 10 kAIC interrupt rating, providing adequate protection for low-to-mid demand residential and light commercial feeders while meeting common electrical codes.
Yes. The unit is designed for 120/240 V single-phase systems with two circuits across four spaces, making it appropriate for residential service feeders, small home upgrades, and modest subpanels. Its aluminum bus and non-metallic enclosure simplify handling, while UL Listing and NEMA 3R rating support compliant installation in typical home environments.
Aluminum bus offers lighter weight than copper while delivering reliable conductivity and corrosion resistance, easing installation and handling during field work. This translates to safer, faster installations and reduced labor costs, especially in retrofit projects or tight spaces where weight and maneuverability matter for technicians.
The 2100RNM-A2 carries a 10-year warranty, signaling long-term durability and predictable maintenance planning. Buyers also gain access to Eaton’s datasheets and warranty documentation, supporting regulatory compliance, spare parts planning, and ROI calculations for residential or light commercial deployments.