Eaton QHCX2090 Miniature Circuit Breaker - UL Listed 42 kAIC
Part Number: QHCX2090
Quick Summary
The Eaton QHCX2090 miniature circuit breaker provides robust overcurrent protection for industrial panels and switchgear. Many facilities struggle with nuisance trips and space constraints when protecting 120/240 V circuits. UL Listed and CSA Certified ensure reliable regulatory compliance for North American installations, while a 42 kAIC interrupt rating supports fast fault clearance under heavy loads. With a compact two-pole footprint and a 90 A rating, this unit frees panel space and simplifies installation, reducing wiring complexity and maintenance costs. This combination translates into improved uptime and predictable protection for critical automation equipment.
Product Information
Extended Description
QHCX2090 Eaton: Eaton Quicklag Type QHCX Industrial Miniature Thermal-Magnetic Circuit Breaker,Miniature circuit breaker,90 A,42 kAIC,Two-pole,120 V/240 V,Thermal-magnetic,QHCX
Product Name
Eaton QC thermal magnetic circuit breaker
Catalog Number
QHCX2090
UPC
786679151716
Product Length/Depth
3.7 in
Product Height
4.8 in
Product Width
0.8 in
Product Weight
3.2 lb
Warranty
1 year
Certifications
UL Listed CSA Certified
Circuit breaker type
QHCX
Number of poles
Two-pole
Type
Miniature circuit breaker
Amperage Rating
90 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
120/240 V
Feature: 90 A amperage rating and 42 kAIC interrupt rating provide solid protection for demanding loads. Business Impact: Enables selective protection of feeders and motors while minimizing the chance of nuisance trips that disrupt production. Application: Ideal for industrial control panels and equipment racks in manufacturing automation environments. Feature: Thermal-magnetic trip mechanism (Trip Type T268) delivers fast fault clearance and stable protection against both overloads and short circuits. Business Impact: Reduces arc flash exposure and equipment damage, improving safety and reliability. Application: Common in motor circuits and process lines that require dependable trip curves under varying load conditions. Feature: 120/240 V voltage rating with two-pole configuration. Business Impact: Simplifies wiring strategies in dual-voltage systems, lowers panel complexity, and supports unified protection schemes. Application: Suitable for distribution panels and switchgear in light-to-moderate industrial assemblies. Feature: Compact footprint — 3.7 in L × 0.8 in W × 4.8 in H and 3.2 lb weight. Business Impact: Saves panel space, reduces enclosure depth, and eases retrofits in crowded electrical rooms. Application: Retrofit projects and new builds where space is at a premium in automation bays. Feature: UL Listed and CSA Certified with a 1-year warranty. Business Impact: Ensures regulatory compliance and supplier accountability, simplifying procurement and quality assurance. Application: Widespread adoption in North American facilities requiring traceable certifications for electrical safety.
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FAQs
The QHCX2090 is a two-pole miniature circuit breaker designed for low-voltage panels. Ensure the panel has space for a 3.7 inch length, 0.8 inch width, and 4.8 inch height device. Verify bus connections and proper torque on terminal lugs, and confirm compatibility with 120/240 V circuits and the 90 A rating to avoid nuisance trips or improper protection.
Key specs include 90 A amperage rating, 42 kAIC interrupt rating, 120/240 V, and a two-pole configuration with thermal-magnetic trip (Trip Type T268). These values indicate suitability for protecting mid-range industrial feeders and motors, providing fast fault clearance and robust short-circuit handling in shared-panel architectures.
Yes. The QHCX2090 is explicitly rated for 120/240 V and configured as a two-pole miniature circuit breaker, making it ideal for branch circuits in industrial panels where dual-voltage distribution and space efficiency are priorities. The 90 A rating supports moderate to higher-load circuits common in automation installations.
The unit is UL Listed and CSA Certified, providing compliance with North American safety and electrical standards. These certifications facilitate procurement, inspection, and installation in regulated facilities, reduce compliance risk, and support consistent safety performance across equipment designed for industrial environments.
The 90 A, 42 kAIC protected device reduces unexpected outages by improving fault isolation, while its compact form simplifies retrofits and reduces enclosure space. With a 1-year warranty and recognized certifications, maintenance teams benefit from predictable replacement cycles and lower total cost of ownership in motor control and panel protection strategies.