Eaton QHCX3050H Thermal Magnetic Circuit Breaker - UL Listed
Part Number: QHCX3050H
Quick Summary
Thermal Magnetic Circuit Breaker protects industrial panels by providing fast overcurrent protection for motors and controls. The Eaton QHCX3050H helps minimize nuisance trips in demanding environments where intermittent loads and wiring complexity slow uptime. UL Listed and CSA Certified support regulatory compliance, with a 42 kAIC interrupt rating delivering reliable fault isolation. Designed as a three-pole, 50 A unit with cable-in/cable-out connections, it fits standard 240 V panel assemblies. This combination delivers safer startups, easier maintenance, and improved total cost of ownership for control panels and machine builders. Its compact footprint and 1-year warranty further minimize field downtime during replacements. It scales across automotive, food & beverage, and general manufacturing applications.
Product Information
Extended Description
QHCX3050H Eaton: Eaton Quicklag Type QHCX Industrial Miniature Thermal-Magnetic Circuit Breaker,Miniature circuit breaker,50 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
QHCX3050H
UPC
786679009352
Product Length/Depth
3.8 in
Product Height
3 in
Product Width
3.1 in
Product Weight
1.2 lb
Warranty
1 year
Certifications
UL Listed CSA Certified
Circuit breaker type
QHCX
Connection
Cable-in/cable-out
Number of poles
Three-pole
Type
Miniature circuit breaker
Amperage Rating
50 A
Interrupt rating
42 kAIC
Trip Type
T268
Voltage rating
240 V - 240 V
Options
Non-interchangeable
Feature: The unit provides a 50 A rating with a 42 kAIC interrupt rating. Business Impact: enables fast fault isolation to minimize downtime and equipment damage. Application: ideal for three-pole, 240 V control panels feeding motors and feeders. Feature: Thermal-magnetic trip mechanism (T268) combines instantaneous magnetic action with thermal protection. Business Impact: reduces nuisance trips while maintaining robust protection, enabling predictable startup sequences. Application: machine control circuits, conveyors, and drive panels in industrial settings. Feature: Cable-in/cable-out wiring support. Business Impact: simplifies field termination, speeds up installation, and improves termination reliability. Application: standard panel builds and retrofit projects where wiring density matters. Feature: Compact footprint—3.8 in length, 3 in height, 3.1 in width; weight 1.2 lb. Business Impact: enables higher panel density and easier service access. Application: space-constrained control cabinets and machine enclosures. Feature: Certifications UL Listed and CSA Certified. Business Impact: enhances cross-border compliance, supplier confidence, and procurement efficiency. Application: equipment deployed in US and Canadian facilities across multiple industries. Feature: 1-year warranty and non-interchangeable configuration. Business Impact: supports predictable lifecycle planning and reduced field risk during replacement cycles. Application: standardization across assemblies and routine maintenance planning.
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FAQs
The QHCX3050H is designed for cable-in/cable-out wiring, offering straightforward termination in three-pole, 240 V panels. This setup reduces wiring complexity and speeds up commissioning, while maintaining secure terminations and clean panel layouts. For retrofit projects, the compatibility with standard panel boards simplifies replacement without altering downstream wiring.
This unit is UL Listed and CSA Certified, confirming compliance with US and Canadian electrical and safety standards. These certifications support regulatory approvals, supplier confidence, and streamlined procurement for equipment operating in diverse environments such as manufacturing, packaging, and process industries.
With a 50 A rating and a 42 kAIC interrupt capacity, the QHCX3050H provides robust short-circuit protection while accommodating typical motor inrush. Its thermal-magnetic trip (T268) balances rapid magnetic response with thermal delay, reducing nuisance trips during startup while safeguarding the circuit during fault conditions.
Yes. The unit’s compact footprint—3.8 in L × 3 in H × 3.1 in W and about 1.2 lb—facilitates dense panel layouts and easier maintenance in space-limited control cabinets. Cable-in/cable-out wiring further smooths installation in tight spaces and reduces wiring congestion.
The QHCX3050H carries a 1-year warranty, simplifying risk planning for replacement cycles. With its durable thermal-magnetic trip, reliable performance across 240 V supplies, and cross-border certifications, it supports predictable maintenance intervals, reduces downtime, and contributes to lower total cost of ownership in OEM and end-user installations.