Eaton CHP42B225R Main Breaker Loadcenter - CSR
Part Number: CHP42B225R
Quick Summary
Eaton CHP42B225R main breaker loadcenter delivers reliable power distribution for commercial and light industrial panels. Engineers often struggle with finding space for large distribution gear and ensuring quick, safe service access in crowded electrical rooms. This enclosure carries UL 67 and UL 50 listings and features a rugged NEMA 3R metallic enclosure to protect the system in varied environments. With a cover included, overhead feed compatibility, and a 120/240 V rating, it streamlines installation and reduces field wiring time. The unit’s durable construction and limited lifetime warranty support lower total cost of ownership for service equipment and ongoing maintenance.
Product Information
Extended Description
CHP42B225R Eaton: Eaton CH main breaker loadcenters,Cover included,Main breaker,225 A,X7,Copper,NEMA 3R,Metallic,CSR,84,42,Three-wire,Single-phase,Overhead,120/240 V
Product Name
Eaton CH main breaker loadcenter
Catalog Number
CHP42B225R
UPC
786689058722
Product Length/Depth
37 in
Product Height
5.19 in
Product Width
14.31 in
Product Weight
32 lb
Warranty
Limited lifetime
Certifications
UL 67 UL 50
Catalog Notes
Suitable for use as service equipment when not more than six service disconnecting mains are provided or when not used as a lighting and appliance panelboard. Rainproof panels are furnished with hub closure plates. For rainproof hubs.
Special features
Cover included
Type
Main breaker
Amperage Rating
225 A
Bus material
Copper
Main circuit breaker
CSR
Number of circuits
84
Number of spaces
42
Phase
Single-phase
Feed type
Overhead
Voltage rating
120/240 V
Box size
X7
Enclosure
NEMA 3R
Enclosure material
Metallic
Number of wires
3
AFCI Educational Video
Eaton Specification Sheet - CHP42B225R
Eaton type CH circuit breaker limited warranty June 2024
Feature: 225 A CSR main breaker and copper bus provide high-current capacity with low voltage drop, increasing protection and reliability for feeders in mid-size commercial facilities. Benefit: Reduced conductor heating and improved protection translate to longer component life and fewer outages. Application: Ideal for distribution closets and service entrances in offices or light manufacturing. Feature: 84 circuits and 42 spaces in a three-wire, single-phase layout support expansive circuiting without stepping up to multiple subpanels. Benefit: Consolidates control gear, simplifies wiring schematics, and reduces footprint. Application: Useful in data centers, labs, and busy mechanical rooms where space efficiency matters. Feature: NEMA 3R metallic enclosure with rainproof hubs and a cover included provides dependable weather resistance. Benefit: Enables outdoor or damp indoor installations without compromising safety or access. Application: Service equipment locations exposed to the elements or frequent cleaning cycles. Feature: 120/240 V operation with overhead feed supports standard US distribution schemes. Benefit: Easier integration with existing building utilities and motor loads, reducing redesigns. Application: New builds and retrofit projects across commercial and light industrial sectors. Feature: UL 67 and UL 50 safety certifications, plus limited lifetime warranty, reinforce compliance and durability. Benefit: Peace of mind for compliance audits and long-term reliability, lowering maintenance costs. Application: Regulated environments and facilities seeking robust service equipment.
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FAQs
The CHP42B225R is designed for overhead feeds with a 42-space, 84-circuit layout and a cover included to simplify front-access installation. Its 37 in length, 14.31 in width, and 5.19 in height define a compact footprint suitable for standard electrical rooms, while the copper bus and CSR main breaker support efficient, code-compliant integration.
Key specs include a 225 A amperage rating, single-phase operation at 120/240 V, copper bus material, and a CSR main circuit breaker. It supports 84 circuits across 42 spaces, with overhead feed and a NEMA 3R metallic enclosure for weather resistance. Certification by UL 67 and UL 50 ensures safety compliance.
Yes. The NEMA 3R metallic enclosure provides rain and dust protection, making it appropriate for outdoor or damp indoor environments. The included cover and rainproof hub notes support service equipment installations in exposed locations, provided the six-service-disconnects condition is respected per catalog notes.
The CHP42B225R carries UL 67 and UL 50 listings, indicating compliance with established electrical safety standards for panelboards and enclosures. These certifications, combined with a limited lifetime warranty, help assure ongoing reliability and easier regulatory audits in industrial settings.
By consolidating 84 circuits in a single 42-space enclosure, using copper bus for lower resistance, and offering a covered, weather-resistant design with a long-lasting warranty, the CHP42B225R reduces field wiring time, lowers maintenance interruptions, and minimizes replacement cycles in service equipment over the system life.