Eaton PRL1X3400B42C Panelboard - UL 67 Interior 400A
Part Number: PRL1X3400B42C
Quick Summary
Eaton PRL1X3400B42C panelboard is a high-capacity interior distribution solution for 120/208V three-phase four-wire systems. Engineers often struggle with space constraints, future-proofing, and safe, compliant expansion when adding feeders. This interior panelboard delivers reliable protection with a 400A main and 42 circuit capacity, using copper bus and UL 67 listing to support safe, long-term operation. The design supports MCB and SFB configurations, making upgrades straightforward while minimizing downtime. By aligning with Pow-R-Xpress compatibility, it enables scalable installation in commercial and light industrial environments, reducing footprint and maintenance. Businesses benefit from quicker commissioning, better fault isolation, and robust traceability for regulatory audits. This helps accelerate project timelines and supports ongoing compliance.
Product Information
Extended Description
PRL1X3400B42C Eaton: EATON PRL1X INTERIOR 120/208 3P 4W 400A MCB & SFB 42 CKT CU,
Product Name
Eaton Pow-R-Xpress PRL1X panelboard
Catalog Number
PRL1X3400B42C
UPC
786689770839
Product Length/Depth
72 in
Product Height
4.25 in
Product Width
8 in
Product Weight
56 lb
Certifications
UL 67
Bus material
Copper
Type
PRL1X INTERIOR
Amperage Rating
400A
Pow-R-Xpress quick selector reference guide
Pow-R-Xpress quick selector reference guide
Pow-R-Xpress quick selector reference guide
Pow-R-Line Xpert family overview
Eaton Specification Sheet - PRL1X3400B42C
Feature: 400A amperage rating with 42 circuit capacity. Benefit: Handles large feeder loads and dense branch circuits with high reliability, reducing the need for early upgrades and lowering total cost of ownership. Application: Suitable for mid-size commercial and light industrial distributions where space is at a premium and uptime matters. Feature: Copper bus material. Benefit: Improves conductivity, minimizes voltage drop, and enhances durability in demanding environments, leading to lower resistance heating and longer service life. Application: Critical for continuous operation in panelboards serving motors, HVAC, and process loads. Feature: Compact interior footprint at 72 in length, 8 in width, and 4.25 in height. Benefit: Maximizes usable room in mechanical spaces while maintaining code-compliant clearance, enabling easier retrofits and faster installations. Application: Ideal for retrofit projects and new builds with restricted space. Feature: 42 circuit capacity with MCB and SFB configurations. Benefit: Flexible protection schemes and easier coordination with selective protection strategies, reducing fault impact and simplifying maintenance. Application: Useful in multi-load panels for data centers, office campuses, and manufacturing floors. Feature: UL 67 certified interior panelboard. Benefit: Compliance with stringent electrical safety standards, simplifying approvals and site inspections. Application: Widely adopted for general purpose electrical distribution in commercial facilities. Feature: 120/208V, 3P4W configuration. Benefit: Broad compatibility with common commercial and light industrial loads, easing integration with existing power systems. Application: Enables seamless installation in modern building systems and retrofits. Feature: Pow-R-Xpress interoperability. Benefit: Streamlined installation workflows and faster commissioning, reducing project timelines. Application: Beneficial for contractors and maintenance teams managing panelboard upgrades.
Get a Quick Quote for a Eaton PRL1X3400B42C
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton PRL1X3400B42C?
Enquire Now
FAQs
PRL1X3400B42C is designed for interior installations with a 72 inch length and 42 circuit capacity. Ensure adequate clearance per NEC/UL guidelines, mounting aligns with standard switchgear footprints, and wiring space accommodates copper bus conductors. The unit supports MCB and SFB configurations, enabling a straightforward retrofit without significant room redesigns or service interruptions.
Key specs include a 400A amperage rating, 120/208V operation, 3P4W configuration, copper bus material, and UL 67 certification. It provides 42 circuit capacity, a 72 inch length, 8 inch width, and 4.25 inch height, making it suitable for mid-sized commercial and light industrial distribution.
Yes. Its interior panelboard design supports 120/208V three-phase four-wire systems and offers ample circuit capacity with copper bus for reliability. The UL 67 listing helps ensure building-code compliance, while the 400A main rating handles typical commercial loads such as lighting, HVAC controls, and receptacle circuits in office and retail environments.
The PRL1X3400B42C is UL 67 listed, indicating compliance with established safety and performance standards for panelboards. This certification streamlines inspections and approvals for general electrical installations in commercial facilities.
The panelboard’s robust copper bus, durable construction, and UL 67 certification contribute to lower downtime and longer service life. Its modular 42-circuit design and compatibility with Power-R-Xpress components enable faster upgrades, reduced commissioning time, and predictable maintenance cycles, delivering a favorable total cost of ownership.