Square D QO320ML1 QO Load Center, 20 Spaces, 20 Circuits, 125A, NEMA 1, CSA

MPN: QO320ML1
UPC: 785901751076
PPN: SCH-QO320ML1

$476.75

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Description

QO Load Centers offer premium features by allowing QO breakers, ground fault interrupters, arc fault interrupters, and surge arresters to be installed inside. QO Load Centers are designed for residential and industrial use to protect electrical systems, equipment, and people. They are available in both traditional and plug on neutral configurations. There is 3 types of mains available. There is main circuit breaker, main lugs, and generator panel. Single and three phase options are available. The bus bars are tin plated copper and are shielded. Indoor and outdoors enclosures are an option. QO Load Centers enable the use of a full complement of accessories. This 3 phase load center has 20 spaces and 20 circuits. This system provides 125A convertible main lugs in a NEMA 1 enclosure. This product is CSA rated.

Features

Designed with a rugged, cold-rolled steel NEMA 1 enclosure, this load center is optimized for surface-mount installation in dry, indoor environments like utility rooms, basements, or commercial closets. The compact 3-phase footprint provides a professional-grade power distribution hub that protects internal components from dust and debris while maintaining a clean, low-profile appearance.
Rated for 120/240V AC three-phase systems, this 20-amp main lug load center is specifically engineered to serve as a high-efficiency sub-panel. Because it does not feature a main breaker, it allows for a direct, cost-effective connection to a larger upstream distribution system, making it the ideal solution for adding dedicated 3-phase power to specific equipment zones or small commercial workspaces.
This load center is built exclusively for Schneider Electric s industry-leading QO "Plug-On" circuit breakers, which are widely recognized as the fastest and most secure in the industry. The shielded bus bar design helps prevent accidental contact with energized parts, while the high-performance copper bus construction ensures maximum conductivity and heat dissipation for your critical electrical circuits.
Featuring a fully shielded bus bar and UL Listed certification, this load center provides an extra layer of protection against accidental arc flashes and electrical faults. By meeting the most stringent National Electrical Code (NEC) requirements, this factory-tested unit ensures your commercial property stays compliant with local safety regulations while protecting sensitive machinery and personnel from electrical hazards.

Documentation & Downloads

Specifications

Key Specifications

Country of Origin	United States

Depth	95 mm

Complementary Attributes

Line Rated Current	125 A

Important Information Attributes

Persona Type Ids	EU, OM
Carbon Footprint Of The Distribution Phase [A4]	1.99948125, 2 kg CO2 eq.
Carbon Footprint Of The Installation Phase [A5]	0.0046672581, 0 kg CO2 eq.
Carbon Footprint Of The Use Phase [B2 B3 B4 B6]	0.1 kg CO2 eq., 0.087341
Local Publishable Date	2026-07-14
Stocking Flag	N
Weee Scope	In
Scope Perimeter	Outside of Europe
Reach Full Compliance Status	Reference contains Substances of Very High Concern above the threshold
Reach Compliance Directive	Reference contains Substances of Very High Concern above the threshold
Rohs Eur Status	Compliant By Exemption
Rohs Eur Full Compliance Status	Compliant By Exemption
With Recycled Cardboard	No
Product Contributes To Saved And Avoided Emissions	No
Tier	2
Function Option	Standard
Market Segmentation	Commercial
Awg Gauge	4 AWG...2/0 AWG aluminium/copper
Cover Type	order separately
Electrical Connection	lugs
Energy Efficiency Optimized	False
Load Center Type	main lugs
Number Of Circuits	20
Phase	3 phase 4 wires
Product Or Component Type	Load Center
Returnability	Yes
Surface Finish	baked enamel Gray
Tightening Torque	main lugs 50 lb.in, 4 AWG...2/0 AWG, aluminium/copperCover 20 lb.in
Pep Code	ENVPEP2212001EN
Pep Verification Date	2023-08-01
Psr Version	PSR-0005-ed2-EN-2016 03 29
Data Source	extrapolated product
Functional-unit Quantity	1
Reference Lifetime In Y	20
Energy Model - Installation [A5]	Electricity mix; AC; consumption mix, at consumer; 120V; US
Energy Model - End Of Life [C1-c4]	Electricity mix; AC; consumption mix, at consumer; 120V; US
Height Nominal	531 mm
Certificate Agency	CSA
Short-circuit Current	10 kA
Package Weight(Lbs)	5.915 kg
Warranty (In Months)	18
Depletion Of Abiotic Resources - Fossil Fuels (Mj) Operational Energy Use [B6]	1.0634
Total Use Of Primary Energy During The Life Cycle (Mj) Operational Energy Use [B6]	1.1758
Water Pollution (M3) Manufacturing [A1-a3]	2034.3375
Customs Code	8538100000

Persona Type Names	End User, Original Equipment Manufacturer
Carbon Footprint Of The End-of-life Phase [C1 To C4]	0.6 kg CO2 eq., 0.6201740809
Carbon Footprint Of The Manufacturing Phase [A1 To A3]	43 kg CO2 eq., 42.6836838235
Local Data Status	Publishable
Return Indicator	Y
Stock Policy	2
Weee Product Category	5
Eoli Availability Display	No need of specific recycling operations
Reach Full Compliance Status Id	CONTAINS_SVHC
Rohs Eur In Scope	Yes
Rohs Eur Conformity Date	2436
China Rohs In Scope	No
Without Single Use Plastic	No
Tier Id	2
Function Option Id	STANDARD
Market Segmentation Id	COMMERCIAL
Product Kit Identifier	N
Box Number	8
Device Composition	grounding bar (ordered separately)
Enclosure Material	welded sheet steel
Installation Direction	vertical
Material	tin plated copper: busbar
Number Of Spaces	20
Product Availability	Stock - Normally stocked in distribution facility
Range Of Product	QO
Software Version	EIME v5.9.4
Sustainable Packaging	No
Total Lifecycle Carbon Footprint	45 kg CO2 eq.
Database Version	2022-01
Pcr Version	PCR-ed3-EN-2015 04 02
Type Of Verification For The Pep	Independent external review
Functional-unit Description	Protect persons during 20 years against direct contact with live parts and allow grouping monitoring, control and protection devices in a single enclosure or a cabinet having the following dimensions 858mm×361mm×95mm, comply with UL 67 and CSA22.2 with an available offer:& 10•Suitable for use on 120/240 Vac and 48 Vdc systems& 10•Rated 30 to 400 amps 2 to 60 circuits& 10•3/4" circuit breaker width& 10•Single and three phase
Functional-unit Unit	unit
Energy Model - Manufacturing [A1-a3]	Energy model used: Lexington
Energy Model - Use [B6]	Electricity mix; AC; consumption mix, at consumer; 120V; US
Recyclability Potential In %	88
Width Nominal	362 mm
[Ue] Rated Operational Voltage	120/240 V AC
Nbr. Of Units In Pkg.	1
Take-back	No
Air Pollution (M3) Operational Energy Use [B6]	7.4172
Total Use Of Non-renewable Primary Energy Resources (Primary Energy And Primary Energy Resources Used As Raw Materials) (Mj) Operational Energy Use [B6]	1.1052
Use Of Non-renewable Primary Energy Excluding Non-renewable Primary Energy Resources Used As Raw Materials (Mj) Operational Energy Use [B6]	1.1052
Water Pollution (M3) Operational Energy Use [B6]	4.3059

Environment Attributes Main

China Rohs Regulation	Product out of China RoHS scope , Product out of China RoHS scope. Substance declaration for your information.
Take Back	No
Mercury Free	Yes
Environmental Disclosure	ENVPEP2212001EN
Nema Degree Of Protection	NEMA 1 indoor enclosure
Packaging Without Single Use Plastic	No
Pep Code	ENVPEP2212001EN
Pcr Version	PCR-ed3-EN-2015 04 02
Type Of Verification For The Pep	Independent external review

Ambient Air Temperature For Operation	-5 °C, -5 °C, 40 °C
Recycled Metal Content At Cr Level	0 %
Carbon Footprint	45.3953474125
Eu Rohs Directive	Compliant By Exemption
Packaging Made With Recycled Cardboard	No
Reach Regulation	Reference contains Substances of Very High Concern above the threshold
Pep Verification Date	2023-08-01
Psr Version	PSR-0005-ed2-EN-2016 03 29