Square D QOU 3-Pole Miniature ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$570.40

Square D QOU 3-Pole Miniature Circuit Breaker 90A 240V 10kA HACR Rated

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Model: QOU390

In Stock (leaves warehouse same day if ordered before 3pm ET)

$570.40
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Square D QOU 3-Pole Miniature Circuit Breaker 90A 240V 10kA HACR Rated

Professional Circuit Protection for Commercial Applications

Square D QOU 3-Pole Miniature Circuit Breaker delivers reliable circuit protection with 90A line rated current and 240V operation. This HACR rated unit mount circuit breaker features 10kA short circuit current capacity and standard function operation for commercial electrical systems. Built with halogen free materials and mercury free construction for environmental compliance.

Professional Features & Benefits

  • 90A Line Rated Current: Provides robust current handling capacity for demanding commercial electrical loads and equipment protection.
  • 10kA Short Circuit Current: Delivers high interrupting capacity to safely clear fault conditions and protect downstream equipment.
  • HACR Rated Application: Specifically designed for heating, air conditioning, and refrigeration equipment with enhanced motor protection capabilities.
  • 3-Pole Configuration: Enables simultaneous protection of all three phases in balanced electrical systems with coordinated trip operation.
  • Halogen Free Construction: Environmentally responsible design reduces toxic emissions during fire conditions for safer building environments.
  • 15 Year Average Life Duration: Extended service life reduces maintenance costs and provides long-term reliability for critical applications.
  • Unit Mount Design: Simplified installation and maintenance with secure mounting configuration for panel integration.

Technical Specifications

  • Average Life Duration: 15 year(s)
  • China Rohs In Scope: No
  • China Rohs Label: 1
  • Circuit Breaker Application: HACR rated
  • Circuit Breaker Type: standard
  • Country Of Origin: Mexico
  • Device Type: LV equipment - Low voltage circuit breaker
  • Energy Efficiency Optimized: FALSE
  • Environmental Disclosure: ENVPEP2111016
  • Eoli Availability Display: No need of specific recycling operations
  • Eu Rohs Directive: Compliant
  • Field Service Division: PPIBS
  • Function Option: Standard
  • Function Option Id: STANDARD
  • Green Premium Status For Reporting: Green Premium product
  • H And D Domain: Safety
  • H And D Enrichment Assignment: no
  • H And D Enrichment Class 3: Circuit Breakers
  • H And D Enrichment Class 4: MCB UL 3P
  • H And D Enrichment Function: MCB
  • H And D Subrange: INDUS
  • Halogen Content Performance: Halogen free product
  • Halogen Free Status: Halogen free product
  • Halogene Performance: Halogen free product
  • Html Descr: QOU Miniature Circuit Breaker, 90A, 3P, 240V, 10kA
  • Legacy Weee Scope: In
  • Line Rated Current: 90 A
  • Manufacturer: Square D
  • Market Segmentation: Commercial
  • Market Segmentation Id: COMMERCIAL
  • Mercury Free: Yes
  • Mounting Mode: unit mount
  • Package Weight Lbs: 648.637 g
  • Packaging Made With Recycled Cardboard: No
  • Packaging Without Single Use Plastic: Yes
  • Poles Description: 3P
  • Product Availability: Stock - Normally stocked in distribution facility
  • Product Contributes To Saved And Avoided Emissions: No
  • Product Depth: 2.95 in
  • Product Height: 4.45 in
  • Product Or Component Type: miniature circuit-breaker
  • Product Width: 2.25 in
  • Range Of Product: QOU
  • Reach Compliance Directive: Reference contains Substances of Very High Concern above the threshold
  • Reach Full Compliance Status: Reference contains Substances of Very High Concern above the threshold
  • Reach Full Compliance Status Id: CONTAINS_SVHC
  • Reach Regulation: Reference contains Substances of Very High Concern above the threshold
  • Recycled Metal Content At Cr Level: 0%
  • Relationshiptype: Compatible relationship
  • Return Indicator: Y
  • Returnability: Yes
  • Rohs Eur Conformity Date: 2534
  • Rohs Eur Full Compliance Status: Compliant
  • Rohs Eur Full Compliance Status Id: COMPLIANT
  • Rohs Eur In Scope: Yes
  • Rohs Eur Status: Compliant
  • Rohs Exemption Information: Yes
  • Scope Perimeter: Outside of Europe
  • Serviceability: No
  • Short Circuit Current: 10 kA
  • Sustainable Packaging: No
  • Take Back: No
  • Tier: 2
  • Tier Id: 2
  • Toxic Heavy Metal Free: Yes
  • Traceability: No
  • Wd Status: A - SELECTED - PCE ONLY (Migration)
  • With Recycled Cardboard: No
  • Without Single Use Plastic: Yes
  • Department: Electrical

Installation & Operation

  1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
  2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
  3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
  4. Configure any available load management or control features as supported by the provided specifications.
  5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
  6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

  • Commercial HVAC Systems
  • Industrial Motor Control Centers
  • Refrigeration Equipment Protection
  • Multi-Unit Residential Properties
  • Retail and Office Buildings
  • Light Industrial Facilities
  • Emergency Power Systems

Why Choose Square D Quality?

Square D QOU circuit breakers deliver proven reliability with 15 year average life duration and comprehensive environmental compliance including RoHS and halogen free construction. The HACR rated design ensures optimal protection for heating, air conditioning, and refrigeration applications while mercury free and toxic heavy metal free materials provide safe, sustainable operation.

Manufacturer Resources

Product Specs

Average Life Duration:
15 year(s)
China Rohs In Scope:
No
China Rohs Label:
1
Circuit Breaker Application:
HACR rated
Circuit Breaker Type:
standard
Country Of Origin:
Mexico
Device Type:
LV equipment - Low voltage circuit breaker
Energy Efficiency Optimized:
FALSE
Environmental Disclosure:
ENVPEP2111016
Eoli Availability Display:
No need of specific recycling operations
Eu Rohs Directive:
Compliant
Field Service Division:
PPIBS
Function Option:
Standard
Function Option Id:
STANDARD
Green Premium Status For Reporting:
Green Premium product
H And D Domain:
Safety
H And D Enrichment Assignment:
no
H And D Enrichment Class 3:
Circuit Breakers
H And D Enrichment Class 4:
MCB UL 3P
H And D Enrichment Function:
MCB
H And D Subrange:
INDUS
Halogen Content Performance:
Halogen free product
Halogen Free Status:
Halogen free product
Halogene Performance:
Halogen free product
Html Descr:
QOU Miniature Circuit Breaker, 90A, 3P, 240V, 10kA
Legacy Weee Scope:
In
Line Rated Current:
90 A
Manufacturer:
Square D
Market Segmentation:
Commercial
Market Segmentation Id:
COMMERCIAL
Mercury Free:
Yes
Mounting Mode:
unit mount
Package Weight Lbs:
648.637 g
Packaging Made With Recycled Cardboard:
No
Packaging Without Single Use Plastic:
Yes
Poles Description:
3P
Product Availability:
Stock - Normally stocked in distribution facility
Product Contributes To Saved And Avoided Emissions:
No
Product Depth:
2.95 in
Product Height:
4.45 in
Product Or Component Type:
miniature circuit-breaker
Product Width:
2.25 in
Range Of Product:
QOU
Reach Compliance Directive:
Reference contains Substances of Very High Concern above the threshold
Reach Full Compliance Status:
Reference contains Substances of Very High Concern above the threshold
Reach Full Compliance Status Id:
CONTAINS_SVHC
Reach Regulation:
Reference contains Substances of Very High Concern above the threshold
Recycled Metal Content At Cr Level:
0%
Relationshiptype:
Compatible relationship
Return Indicator:
Y
Returnability:
Yes
Rohs Eur Conformity Date:
2534
Rohs Eur Full Compliance Status:
Compliant
Rohs Eur Full Compliance Status Id:
COMPLIANT
Rohs Eur In Scope:
Yes
Rohs Eur Status:
Compliant
Rohs Exemption Information:
Yes
Scope Perimeter:
Outside of Europe
Serviceability:
No
Short Circuit Current:
10 kA
Sustainable Packaging:
No
Take Back:
No
Tier:
2
Tier Id:
2
Toxic Heavy Metal Free:
Yes
Traceability:
No
Wd Status:
A - SELECTED - PCE ONLY (Migration)
With Recycled Cardboard:
No
Without Single Use Plastic:
Yes
Department:
Electrical

Schneider QOU390 – Frequently Asked Questions

How fast can I get the Schneider QOU390 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Schneider QOU390 come with a warranty?
Absolutely. The Schneider QOU390 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schneider QOU390?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Schneider QOU390 from ZenSupply?
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