


Documentation & Downloads

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
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Loading dialog...
Looking to buy a large quantity?
To View Branch Inventory And Your Custom Pricing
Spec sheet
Description
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
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
General Attributes
- Phase
- 3 phase 4 wires
- Range Of Product
- QO
ETIM
- ETIM 8
- EC000214
Contractual Warranty Attributes
- Warranty Period
- 18 months
Similar Products
Loading carousel layout...
Loading carousel layout...
CAD
$390.43
/ EA
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Loading dialog...
Looking to buy a large quantity?
To View Branch Inventory And Your Custom Pricing
Spec sheet
CAD$390.43/ EA
Loading add to cart quantity...











