Load Center 3 Phase 12 Spaces 24 Circuits 100A NEMA 1 CSA UL
Load Center 3 Phase 12 Spaces 24 Circuits 100A NEMA 1 CSA UL
Load Center 3 Phase 12 Spaces 24 Circuits 100A NEMA 1 CSA UL
Square D

Square D QO312ML1 Load Center 3 Phase 12 Spaces 24 Circuits 100A NEMA 1 CSA UL

  • MPN: QO312ML1
  • UPC: 785901751052
  • PPN: SCH-QO312ML1

CAD

$390.43

/ 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 12 spaces and 12 circuits. This system provides 100A convertible main lugs in a NEMA 1 enclosure. This product is CSA and UL rated.

Features

  • Engineered for 3-phase, 4-wire electrical systems, this 125-amp maximum capacity load center features convertible main lugs to adapt to your specific building requirements. Offering 12 full spaces (and up to 24 circuits), it serves as the perfect high-efficiency sub-panel for safely distributing 120/240V power to retail HVAC units, commercial lighting banks, or light industrial machinery.
  • Built with shielded, premium tin-plated copper bus bars, this Square D QO panel guarantees superior electrical conductivity and exceptional thermal stability compared to standard aluminum alternatives. This rugged, oxidation-resistant construction virtually eliminates the risk of loose connections and heat degradation, ensuring uninterrupted power flow and minimizing expensive maintenance call-backs for facility electricians.
  • Housed in a heavy-duty, welded sheet steel NEMA 1 enclosure, this indoor-rated panel provides absolute protection against dust and accidental live contact. Its electrician-friendly design features optimized, straight-in main wiring and strategically placed knockouts, dramatically reducing installation labor time and making complex commercial panel upgrades clean and straightforward.
  • Fully cULus Listed and CSA Certified, this component meets the most rigorous North American National Electrical Code (NEC) standards for commercial power distribution. It is specifically designed for seamless, snap-in integration with industry-leading Square D QO circuit breakers including AFCI, GFCI, and surge protectors guaranteeing your commercial installation remains heavily protected and fully liability-compliant.

Documentation & Downloads

Specifications

Key Specifications

Country of Origin
United States

Complementary Attributes

Line Rated Current
125 A

Important Information Attributes

Persona Type Ids
EU, OM
Certificate Agency
cULus, CSA
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
24
Phase
3 phase 4 wires
Product Or Component Type
Load Center
Returnability
Yes
Sustainable Packaging
No
Pep Code
ENVPEP2212001EN
Width Nominal
362 mm
Short-circuit Current
10 kA
Package Weight(Lbs)
5.058 kg
Warranty (In Months)
18
Persona Type NamesEnd User, Original Equipment Manufacturer
Local Data StatusPublishable
Return IndicatorY
Stock Policy2
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 Number7
Device Compositiongrounding bar (ordered separately)
Enclosure Materialwelded sheet steel
Installation Directionvertical
Materialtin plated copper: busbar
Number Of Spaces12
Product AvailabilityStock - Normally stocked in distribution facility
Range Of ProductQO
Surface Finishbaked enamel Gray
Tightening Torquemain lugs 50 lb.in, 4 AWG...2/0 AWG, aluminium/copperCover 20 lb.in
Height Nominal455 mm
[Ue] Rated Operational Voltage120/240 V AC
Nbr. Of Units In Pkg.1
Take-backNo
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
Eu Rohs Directive
Compliant By Exemption
Packaging Made With Recycled Cardboard
No
Reach Regulation
Reference contains Substances of Very High Concern above the threshold
Ambient Air Temperature For Operation-5 °C, -5 °C, 40 °C
Recycled Metal Content At Cr Level0 %
Environmental DisclosureENVPEP2212001EN
Nema Degree Of ProtectionNEMA 1 indoor enclosure
Packaging Without Single Use PlasticNo
Pep CodeENVPEP2212001EN

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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