Eaton QHPX1045 Industrial Circuit Breaker - UL Listed
Part Number: QHPX1045
Quick Summary
QHPX1045 is Eaton's industrial circuit breaker designed for fast, reliable overcurrent protection in control panels and MCCs. This thermal-magnetic unit helps prevent equipment damage and downtime by reacting to both sustained overloads and short circuits. The device carries UL Listed and CSA Certified marks and meets HACR rating requirements, supporting safe operation in commercial and industrial environments. With plug-on mounting and compact dimensions, it integrates cleanly into standard enclosures while preserving wiring space. The 45 A rating, 42 kAIC interrupt capacity, and 120/240 V compatibility provide flexible protection for a wide range of machinery. Coupled with a 1-year warranty, the QHPX1045 offers confidence and value for panel builders and OEMs.
Product Information
Extended Description
QHPX1045 Eaton: Eaton Quicklag Type QHP Industrial Thermal-Magnetic Circuit Breaker,Industrial circuit breaker,45 A,42 kAIC,Single-pole,120/240 V,Thermal-magnetic,Q17,QHPX,Non-Interchangeable
Product Name
Eaton Quicklag thermal magnetic circuit breaker
Catalog Number
QHPX1045
UPC
786679152119
Product Length/Depth
3.8 in
Product Height
0.8 in
Product Width
2.8 in
Product Weight
0.3 lb
Warranty
1 year
Compliances
HACR Rated
Certifications
UL Listed CSA Certified
Circuit breaker type
QHPX
Mounting Method
Plug-on
Number of poles
Single-pole
Type
Industrial circuit breaker
Amperage Rating
45 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
120/240 V
Options
Non-Interchangeable
Quantity
17
Feature: 45 A thermal-magnetic amperage rating combined with a 42 kAIC interrupt capacity. Business Impact: Provides robust short-circuit protection while minimizing nuisance trips, reducing downtime and maintenance costs. Application: Ideal for controlling power to industrial motors and equipment in harsh manufacturing environments. Feature: Single-pole, plug-on mounting with a compact 3.8 in depth, 2.8 in width, and 0.8 in height. Business Impact: Streamlines panel layout and simplifies installation in dense electrical cabinets, saving time and labor during panel upgrades. Application: Suitable for compact control panels and machine enclosures with limited space. Feature: 120/240 V operation with HACR rating, UL Listed and CSA Certified. Business Impact: Ensures compliance with electrical codes and safety standards, supporting easier certification and safer operation. Application: Broad compatibility with industrial AC systems and automation panels. Feature: Quicklag QHPX family designation with non-interchangeable design. Business Impact: Reduces mis-selection risk and ensures consistent performance in Eaton-based assemblies. Application: OEM panel builds and retrofit projects where standardized protection is critical. Feature: 1-year warranty and documented specifications (Catalog Number QHPX1045, UPC 786679152119). Business Impact: Improves supplier confidence, eases QA reviews, and supports maintenance planning. Application: Field service and long-term asset management in manufacturing and distribution facilities.
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FAQs
QHPX1045 uses a plug-on mounting method and fits compact enclosures with a footprint of 2.8 in width by 0.8 in height and 3.8 in depth. This enables quick, clean wiring inside standard panels while preserving space for other devices. Verify panel slot availability and ensure correct single-pole configuration for your 120/240 V system to maintain HACR-rated protection.
A 42 kAIC interrupt rating indicates the maximum fault current the breaker can interrupt without sustaining damage. This enables safe shutdown of high-energy faults in typical industrial environments and supports reliability in services up to reasonably high short-circuit levels, aligning with common panel design and utility coordination requirements.
Yes. The QHPX1045 is specified for 120/240 V operation and single-pole protection, making it suitable for controlling individual circuits in many industrial control panels and equipment installations. Its thermal-magnetic trip mechanism helps balance nuisance trips with protective reliability across typical AC systems.
QHPX1045 carries UL Listed and CSA Certified marks and HACR rating, which are recognized safety and performance certifications in North America. These approvals simplify code compliance, support safer equipment operation, and facilitate acceptance in regulated industrial facilities and OEM assemblies.
Quicklag provides fast, predictable trip characteristics for overloads and faults, reducing unwanted trips and downtime. In practice, this means quicker fault diagnosis, easier fault isolation, and improved system availability, contributing to lower maintenance costs and a faster return on investment in automation projects.