Eaton QHCX3045H Thermal-Magnetic Circuit Breaker - UL Listed
Part Number: QHCX3045H
Quick Summary
The Eaton QHCX3045H thermal-magnetic circuit breaker protects industrial panels with reliable short-circuit and overload protection. For engineers battling nuisance trips and unplanned downtime, its precise thermal-magnetic trip curve and 42 kAIC interrupt rating reduce risk and extend equipment life. The unit carries UL Listed and CSA Certified markings, supports 240 V three-pole operation, and meets stringent industrial standards. With a compact footprint tailored for Wiring & Connectivity and control cabinet layouts, it simplifies replacement, improves panel density, and lowers procurement and maintenance costs. This combination of rugged performance and formal certifications supports compliance across automation projects and delivers measurable ROI through reduced downtime and faster service.
Product Information
Extended Description
QHCX3045H Eaton: Eaton Quicklag Type QHCX Industrial Miniature Thermal-Magnetic Circuit Breaker,Miniature circuit breaker,45 A,42 kAIC,Three-pole,240 V,Thermal-magnetic,QHCX
Product Name
Eaton QC thermal magnetic circuit breaker
Catalog Number
QHCX3045H
UPC
786679009345
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
45 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
240 V - 240 V
The 45 A amperage rating aligns with typical MCC and AC circuits, delivering precise current limiting while preventing nuisance trips, which reduces unnecessary maintenance and energy waste during fault events. In practice, this supports smoother production runs in motor control centers and automation panels where uptime matters most. The 42 kAIC interrupt rating provides robust fault current handling for medium‑sized distribution networks, enhancing protection for feeders and large machines and helping prevent cascade failures in crowded electrical rooms. Three-pole design and a 240 V rating enable synchronized switching for three‑phase loads, simplifying wiring and reducing panel complexity while preserving coordination with upstream breakers and control circuitry. Its compact 2.9 in length, 1 in width, and 4.8 in height fit tight installations, improving panel density and reducing enclosure depth requirements. The T268 trip characteristic offers selective, fast response to faults, while UL Listed and CSA Certified markings ensure compliance with common electrical standards, easing procurement and inspection. The 3.4 lb weight supports straightforward handling during replacement and field service, and the 1-year warranty provides reassurance against manufacturing variances in demanding environments. For wiring & connectivity teams, the unit integrates cleanly with standard DIN rail layouts and mounting footprints, delivering dependable protection without sacrificing space or performance.
Get a Quick Quote for a Eaton QHCX3045H
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 QHCX3045H?
Enquire Now
FAQs
The QHCX3045H is designed for industrial control panels and three‑phase power distributions. It fits standard DIN rail mounting and typical Wiring & Connectivity layouts, allowing straightforward replacement in existing panels without reworking bus bars or enclosure openings.
This breaker is 45 A, 240 V, with a 42 kAIC interrupt rating and a T268 trip type. These specs support reliable overload protection and fast fault clearing in moderate to high fault-current environments, while maintaining coordination with upstream protective devices.
Yes. With three poles and a thermal-magnetic trip, it provides appropriate protection for three‑phase motors and motor control circuits, reducing nuisance trips during inrush and overload events while supporting safe startup sequences in automation cabinets.
The unit carries UL Listed and CSA Certified markings, signaling compliance with widely recognized safety and performance standards. These certifications simplify regulatory approvals, supplier qualification, and quality assurance within manufacturing environments.
By minimizing nuisance trips, improving panel density with its compact footprint, and offering reliable protection with documented certifications, the QHCX3045H reduces maintenance downtime and replacement costs while streamlining procurement and commissioning processes.