Eaton QHCX3090H Miniature Circuit Breaker - UL Listed
Part Number: QHCX3090H
Quick Summary
Eaton QC thermal magnetic circuit breaker provides reliable overload protection for industrial electrical circuits in panels and control cabinets. Engineers often struggle with nuisance trips, space constraints, and retrofit challenges when upgrading protection across existing systems. This unit carries UL Listed and CSA Certified marks, along with a 42 kAIC interrupt rating, supporting robust fault protection in demanding environments and 240 V power rails. With a 90 A rating and three-pole design, it aligns with typical industrial wiring, enabling efficient protection while reducing maintenance costs. For retrofit projects and new builds, the QHCX3090H delivers predictable protection and straightforward installation, helping operations meet safety standards and performance targets.
Product Information
Extended Description
QHCX3090H Eaton: Eaton Quicklag Type QHCX Industrial Miniature Thermal-Magnetic Circuit Breaker,Miniature circuit breaker,90 A,42 kAIC,Three-pole,240 V,Thermal-magnetic,QHCX
Product Name
Eaton QC thermal magnetic circuit breaker
Catalog Number
QHCX3090H
UPC
786679009406
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
90 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
240 V - 240 V
Feature: Thermal-magnetic trip architecture combines fast short-circuit interruption with time-delay overload protection. Business Impact: Reduces nuisance trips while protecting equipment, lowering maintenance costs. Application: Ideal for motor loads and control circuits in manufacturing lines. Feature: 90 A amperage rating with a 3-pole design. Business Impact: Supports heavy three-phase loads and ensures coordinated protection across feeders. Application: Panel feeders and distribution in automation systems. Feature: 42 kAIC interrupt rating. Business Impact: High fault current capability for safer disconnection and reduced downtime. Application: Environments with elevated fault currents in industrial facilities. Feature: 240 V rating and three-pole configuration. Business Impact: Compatible with standard plant power systems and three-phase distributions, simplifying design. Application: Industrial power distribution and motor control centers. Feature: Compact footprint (2.9 in depth, 4.8 in height, 1 in width) and weight (3.4 lb). Business Impact: Saves panel space, enables easier retrofits, and reduces enclosure size. Application: New builds and retrofit projects with space constraints. Feature: Certifications UL Listed and CSA Certified. Business Impact: Ensures regulatory compliance and procurement reliability across North American projects. Application: Safety-critical panel protection in manufacturing and processing plants. Feature: Quicklag family compatibility (QHCX). Business Impact: Streamlines part stocking and cross-compatibility for maintenance teams. Application: Upgrades and replacements in Eaton-powered control networks.
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FAQs
QHCX3090H is a three-pole device rated for 240 V and 90 A, designed to mount in standard industrial panels. Its compact footprint (2.9 in depth, 4.8 in height, 1 in width) and three-pole configuration enable straightforward wiring and mounting in existing panel spaces, while UL Listed and CSA Certified marks simplify compliance during installation and audits.
This breaker provides a 90 A amperage rating with a 42 kAIC interrupt rating and a trip type of T268. It operates at 240 V and is a thermal-magnetic device, offering coordinated protection for three-phase circuits and fast fault interruption to minimize equipment damage and downtime.
Yes. The three-pole 90 A rating, 42 kAIC interrupt capability, and 240 V operation make the QHCX3090H well-suited for motor control circuits and other three-phase loads in manufacturing environments. Its thermal-magnetic design helps avoid nuisance trips during normal inrush while providing reliable protection during faults.
The QHCX3090H carries UL Listed and CSA Certified marks, indicating compliance with major safety standards for North American installations. These certifications simplify procurement, support NEC compliance, and reduce qualification time for commissioning and audits in industrial facilities.
The QHCX3090H carries a 1-year warranty and is designed for long life in industrial environments. For maintenance, rely on standard inspection schedules for protective devices, monitor trip history to detect nuisance trips or abnormal loading, and keep spares in the Eaton Quicklag QHCX family to minimize downtime during replacement or upgrades.