Eaton 3CPL136 Main Lug Loadcenter - 125 A, 40 Circuits
Part Number: 3CPL136
Quick Summary
Eaton BR main lug loadcenter is a reliable solution for distributing power in commercial and light-industrial panels. The 3CPL136 model uses a CPL plug-in loadcenter design with non-combination main lug only, rated at 125 A and 120/208 V three-phase service. Designers frequently face space constraints, wiring complexity, and maintenance downtime during panel upgrades; this configuration helps streamline installation and future expansion. The enclosure is NEMA 1 with a flush or surface cover, and it accommodates #14-2/0 AWG conductors in a four-wire, three-phase system. Certifications vary by region, but Eaton BR products typically align with UL/cUL, CE, and country-specific approvals—verify exact listings with the manufacturer. This combination supports efficient, scalable distributions and reduced lifecycle costs.
Product Information
Extended Description
3CPL136 Eaton: Eaton BR main lug loadcenter, CPL Plug-in Loadcentre, Non-combination Main Lug Only, 125A, Flush/Surface, #14-2/0 AWG, Four-wire, 120/208V, Three phase, NEMA 1, 16 gauge galvanized sheet steel
Product Name
Eaton BR main lug loadcenter
Catalog Number
3CPL136
UPC
622588101094
Product Length/Depth
14.375 in
Product Height
39 in
Product Width
3.75 in
Product Weight
36 lb
Certifications
Contact Manufacturer
Type
Non-combination, main lug only
Amperage Rating
125 A
Cover
Flush/surface
Number of circuits
40
Phase
Three-phase
Voltage rating
120/208 V
Enclosure
NEMA 1
Feature: 125 A main lug rating and 40 circuit capacity. Business Impact: Provides a compact yet scalable distribution point suitable for mid-size installations, reducing panel count and simplifying wiring. Application: Ideal for commercial spaces and light-industrial panels where reliable three-phase distribution is needed. Feature: CPL plug-in loadcenter design. Business Impact: Enables faster maintenance and easier breaker replacements, minimizing downtime during service. Application: Machine control panels and service entrances requiring quick turnarounds. Feature: Non-combination main lug only. Business Impact: Flexible expansion and retrofit capability, allowing future main protections to be added or reconfigured with minimal disruption. Application: Retrofit projects and evolving control architectures. Feature: Flush/surface cover option. Business Impact: Installation versatility and aesthetic integration with existing panels. Application: Indoor environments with constrained mounting spaces. Feature: NEMA 1 indoor enclosure in galvanized steel. Business Impact: Durable protection against indoor dust and physical impact, extending panel life. Application: Office, warehouse, and indoor control rooms. Feature: Conductor compatibility with #14-2/0 AWG and four-wire setups. Business Impact: Broad wiring flexibility reduces stocking needs and allows seamless integration with a wide range of equipment. Application: General distribution panels and equipment hook-ups for 120/208 V systems. Feature: 16 gauge galvanized sheet steel construction. Business Impact: Enhanced durability and corrosion resistance for long-term installations. Application: Harsh indoor environments and facility-wide power distribution.
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FAQs
The 3CPL136 supports #14-2/0 AWG conductors in a four-wire, three-phase configuration. This range covers common control and power feeders used in many commercial and light-industrial panels, enabling straightforward wiring with standard insulation schemes and terminal provisions.
Yes. The unit offers both flush and surface mounting options with a flush/surface cover, giving installers flexibility to match panel aesthetics and available space. This reduces retrofit challenges and helps achieve a clean, code-compliant installation.
Key specs include a 125 A amperage rating, 40 circuits, 120/208 V three-phase capability, and a NEMA 1 indoor enclosure. The CPL plug-in design enables quick replacements, and the unit is designed for non-combination main lug only configurations to simplify future expansion.
Certification details are listed as 'Contact Manufacturer' in the data provided. In practice, BR series products commonly align with UL/cUL and CE markings where applicable; however, always verify the exact regional approvals with Eaton for your project to ensure regulatory compliance.
The 3CPL136 offers reduced downtime through plug-in CPL design, simplified maintenance, and scalable capacity (125 A, 40 circuits). These factors translate into lower maintenance costs, faster commissioning, and minimized future rework, delivering a favorable total cost of ownership over the panel’s life cycle.