Eaton QHCX3040H Miniature Circuit Breaker - 42 kAIC
Part Number: QHCX3040H
Quick Summary
Eaton QHCX3040H is a thermal-magnetic circuit breaker protecting industrial panels and motor circuits. Fitting reliable overload protection in compact spaces and ensuring fast, predictable trips is a constant engineering hurdle. UL Listed and CSA Certified provide strong safety assurances for North American installations, aligning with common Wiring & Connectivity standards. The cataloged three-pole design and 40 A rating support scalable panel protection, while the small footprint helps reduce enclosure depth and simplify installation in busy control rooms.
Product Information
Extended Description
QHCX3040H Eaton: Eaton Quicklag Type QHCX Industrial Miniature Thermal-Magnetic Circuit Breaker,Miniature circuit breaker,40 A,42 kAIC,Three-pole,240 V,Thermal-magnetic,QHCX
Product Name
Eaton QC thermal magnetic circuit breaker
Catalog Number
QHCX3040H
UPC
786679009338
Product Length/Depth
2.9 in
Product Height
4.8 in
Product Width
1 in
Product Weight
3.4 lb
Warranty
1 year
Certifications
UL Listed CSA Certified
Circuit breaker type
QHCX
Number of poles
Three-pole
Type
Miniature circuit breaker
Amperage Rating
40 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
240 V - 240 V
Feature: High interrupt capacity of 42 kAIC provides robust short-circuit protection, reducing arc energy and safeguarding connected equipment. Business Impact: Limits equipment damage and downtime in demanding applications, improving overall line reliability and maintenance planning. Application: Ideal for motor drives and high-current control circuits in industrial wiring and connectivity layouts. Feature: 40 A amperage rating with 240 V operation in a three-pole design. Business Impact: Delivers precise overload protection for 3-phase systems, enabling safe distribution and coordinated protection across panels. Application: Suitable for multi-phase industrial equipment and machine control circuits. Feature: Thermal-magnetic trip type (T268). Business Impact: Provides fast, predictable trips for both overloads and short circuits, minimizing nuisance trips while preserving equipment life. Application: Effective in motor start-up scenarios and load-sensitive control networks. Feature: Compact footprint (2.9 in depth, 4.8 in height, 1 in width) and 3.4 lb weight. Business Impact: Eases panel integration and reduces enclosure space, lowering installation time and labor costs. Application: Fits standard Wiring & Connectivity configurations in space-constrained control panels. Feature: Certifications and warranty—UL Listed, CSA Certified, and a 1-year warranty. Business Impact: Streamlines compliance and procurement cycles, enhances vendor support, and lowers total cost of ownership. Application: Recommended for North American industrial facilities requiring formal safety certification and reliable post-sale service.
Get a Quick Quote for a Eaton QHCX3040H
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 QHCX3040H?
Enquire Now
FAQs
The QHCX3040H is a 40 A, three-pole miniature circuit breaker rated for 240 V with a 42 kAIC interrupt rating and a T268 trip type. It is cataloged as QHCX3040H, UL Listed and CSA Certified, and weighs about 3.4 lb with dimensions of 2.9 in depth, 4.8 in height, and 1 in width.
Yes. The QHCX3040H carries UL Listed and CSA Certified marks, ensuring compliance with major North American electrical safety standards for industrial wiring and connectivity applications.
The device is a three-pole miniature circuit breaker with a compact footprint designed for standard panel layouts. It fits typical wiring & connectivity configurations, supports straightforward panel installation, and is compatible with common bus bar and enclosure arrangements used in industrial systems.
The QHCX3040H uses a thermal-magnetic trip type (T268), which provides fast response to overloads and short-circuit events. This helps protect motors and drives, reduce downtime, and improve reliability in dynamic industrial environments.
With a 42 kAIC interrupt rating and reliable UL/CSA certification, the QHCX3040H minimizes fault damage and downtime while simplifying procurement and compliance. Its compact form factor reduces enclosure space and installation complexity, supporting lower lifecycle costs and safer, more predictable maintenance schedules.