Eaton QHCX3030H Miniature Circuit Breaker - 42 kAIC
Part Number: QHCX3030H
Quick Summary
Eaton QHCX3030H miniature circuit breaker protects industrial control panels with fast, reliable overcurrent protection. Engineers often contend with nuisance trips and downtime, but this unit delivers precise trip characteristics and a high interrupt rating to keep systems up and running. CSA Certified and UL Listed ensure regulatory compliance, while its thermal-magnetic operation supports sensitive electronics in demanding environments. Cable-in/cable-out installation and a three-pole design simplify panel wiring, enabling faster commissioning and lower total cost of ownership for manufacturing lines and process automation projects.
Product Information
Extended Description
QHCX3030H Eaton: Eaton Quicklag Type QHCX Industrial Miniature Thermal-Magnetic Circuit Breaker,Miniature circuit breaker,30 A,42 kAIC,Three-pole,240 V,Thermal-magnetic,Cable-in/cable-out,QHCX,Non-interchangeable
Product Name
Eaton QC thermal magnetic circuit breaker
Catalog Number
QHCX3030H
UPC
786679009314
Product Length/Depth
2.9 in
Product Height
3.5 in
Product Width
3.4 in
Product Weight
1 lb
Warranty
1 year
Certifications
CSA Certified UL Listed
Circuit breaker type
QHCX
Connection
Cable-in/cable-out
Number of poles
Three-pole
Type
Miniature circuit breaker
Amperage Rating
30 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
240 V - 240 V
Options
Non-interchangeable
Feature: Three-pole design for three-phase circuits -> Business Impact: Balanced protection across all phases reduces the risk of uneven loading and equipment damage, improving uptime in motors and drives. Application: Motor control centers and automation panels benefit from reliable protection without reconfiguring wiring. Feature: Thermal-magnetic trip mechanism (Trip Type T268) -> Business Impact: Combines instantaneous fault clearing with time-delayed protection, lowering nuisance trips and extending motor life. Application: Conveyor systems and packaging lines where consistent performance matters. Feature: 30 A, 42 kAIC, 240 V rating -> Business Impact: Clear, industry-standard protection for common industrial loads with strong fault tolerance, reducing unplanned outages. Application: Control cabinets and machine electrical gear requiring solid short-circuit protection. Feature: Cable-in/cable-out connection -> Business Impact: Simplifies field installation and enclosure wiring, saving installation time and reducing wiring errors. Application: Panel builders and retrofit projects needing clean, scalable wiring. Feature: Non-interchangeable option -> Business Impact: Prevents incorrect device substitution, ensuring maintained protection characteristics and ongoing compliance. Application: Critical safety circuits and regulated motor circuits. Feature: Certifications and warranty -> Business Impact: CSA Certified UL Listed devices meet regulatory expectations with a 1-year warranty, supporting supplier audits and lifecycle planning. Application: System integrators seeking dependable supply chain and service continuity.
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FAQs
The QHCX3030H is designed for standard industrial control panels and motor control centers that use three-phase, 240 V circuits with cable-in/cable-out terminations. It fits common control cabinet layouts and simplifies wiring where three-pole protection is required.
Install by routing input and output cables through the breaker’s terminals in a clean, organized manner. Ensure secure lugs, proper torque per catalog guidance, and alignment with adjacent devices to maintain efficient heat dissipation and reliable trip performance.
Key specs include a 30 A amperage rating, 42 kAIC interrupt capacity, 240 V voltage rating, and three-pole configuration. The device employs a thermal-magnetic trip unit (Trip Type T268) suitable for industrial motor and drive protection.
Yes. The QHCX3030H is CSA Certified and UL Listed, providing recognized safety certifications for electrical panels and compliant installation in many regions, which supports audits and ongoing regulatory adherence.
With its robust protection, high interrupt rating, and reliable performance, the QHCX3030H reduces nuisance trips and unplanned downtime, improving uptime and maintenance predictability. The 1-year warranty further supports long-term cost-of-ownership reductions and lower total cost of ownership in automation projects.