3 Phase Load Center, 42 Spaces, 225A Main Lugs, NEMA 1
Square D

Square D QO342ML2 3 Phase Load Center, 42 Spaces, 225A Main Lugs, NEMA 1

  • MPN: QO342ML2
  • UPC: 785901751137
  • PPN: SCH-QO342ML2

CAD

$900.51

/ EA

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Spec sheet

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 42 spaces and 42 circuits. This system provides 225A convertible main lugs in a NEMA 1 enclosure. This product is CSA and UL rated.

Features

  • This QO Load Center provides a high-density 42-circuit interior, allowing you to centralize all 120/240V distribution in a single enclosure. For commercial electricians and facility managers, this eliminates the need for messy sub-panels and ensures you have the overhead required for future EV chargers, HVAC upgrades, or industrial machinery without a costly service upgrade.
  • Built around the industry-leading QO platform, this panel features the iconic shielded bus bar and "Plug-On" Neutral compatibility (on applicable models). This allows for faster breaker installation and cleaner wiring gutters, reducing labor hours and minimizing the risk of loose terminal connections that lead to heat buildup and equipment failure.
  • Housed in a rugged, powder-coated steel NEMA 1 enclosure, this load center is engineered for indoor environments. The shielding protects the interior from dust and debris, while the strict UL listing ensures it meets all National Electrical Code (NEC) requirements for safe power distribution in dry locations.
  • When used with Schneider Electric QO breakers, this panel supports the Visi-TripTM system, which provides a highly visible red indicator on any tripped breaker. This allows maintenance personnel to identify the faulty circuit at a glance among 42 possible breakers, drastically reducing downtime and simplifying troubleshooting for non-technical building occupants.

Documentation & Downloads

Specifications

Key Specifications

Country of Origin
United States
Depth3.7 in

Complementary Attributes

Line Rated Current
225 A

Important Information Attributes

Persona Type Ids
EU, OM
Carbon Footprint Of The Distribution Phase [A4]
3.3350603571, 3 kg CO2 eq.
Carbon Footprint Of The Installation Phase [A5]
0.0077848129, 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
Y
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...300 kcmil aluminium/copper
Cover Type
order separately
Electrical Connection
lugs
Energy Efficiency Optimized
False
Load Center Type
main lugs
Number Of Circuits
42
Phase
3 phase 4 wires
Product Or Component Type
Load Center
Returnability
Yes
Surface Finish
baked enamel Gray
Tightening Torque
main lugs 250 lb.in, 4 AWG...250 kcmil, 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
38.0 in
Certificate Agency
cULus
Short-circuit Current
10 kA
Package Weight(Lbs)
9.866 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) Operational Energy Use [B6]
4.3059
Persona Type NamesEnd User, Original Equipment Manufacturer
Carbon Footprint Of The End-of-life Phase [C1 To C4]1 kg CO2 eq., 1.0344273004
Carbon Footprint Of The Manufacturing Phase [A1 To A3]71 kg CO2 eq., 71.1947970588
Local Data StatusPublishable
Return IndicatorY
Stock Policy1
Weee Product Category5
Eoli Availability DisplayNo need of specific recycling operations
Reach Full Compliance Status IdCONTAINS_SVHC
Rohs Eur In ScopeYes
Rohs Eur Conformity Date2436
China Rohs In ScopeNo
Without Single Use PlasticNo
Tier Id2
Function Option IdSTANDARD
Market Segmentation IdCOMMERCIAL
Product Kit IdentifierN
Box Number12
Device Compositiongrounding bar (ordered separately)
Enclosure Materialwelded sheet steel
Installation Directionvertical
Materialtin plated copper: busbar
Number Of Spaces42
Product AvailabilityStock - Normally stocked in distribution facility
Range Of ProductQO
Software VersionEIME v5.9.4
Sustainable PackagingNo
Total Lifecycle Carbon Footprint76 kg CO2 eq.
Database Version2022-01
Pcr VersionPCR-ed3-EN-2015 04 02
Type Of Verification For The PepIndependent external review
Functional-unit DescriptionProtect 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 Unitunit
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 Nominal14.2 in
[Ue] Rated Operational Voltage120/240 V AC
Nbr. Of Units In Pkg.1
Take-backNo
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
Customs Code8537109150

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 Level0 %
Carbon Footprint75.6594105293
Eu Rohs DirectiveCompliant By Exemption
Packaging Made With Recycled CardboardNo
Reach RegulationReference contains Substances of Very High Concern above the threshold
Pep Verification Date2023-08-01
Psr VersionPSR-0005-ed2-EN-2016 03 29

General Attributes

Phase
3 phase 4 wires
Range Of Product
QO
Product Or Component TypeLoad Center

ETIM

ETIM 8
EC000214
ETIM 9EC000214

Contractual Warranty Attributes

Warranty Period
18 months
Warranty18 months
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