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Square D QO™ Series NEMA 3R Main Lug Only Loadcenters 125 A 120/240 VAC, 120/208Y VAC 20

Mfg #: QO320L125GRB
BOR #: 155820
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Main Lug Only Loadcenters

  • QO™ Series
  • NEMA 3R
  • Does not accepts plug-on neutral circuit breaker
  • Gray baked enamel electrodeposited over cleaned, phosphatized steel
  • New side hinge doors on outdoor convertible main panels
  • Outdoor panel covers are lockable with padlock
  • Single captive screw interior mounting on indoor panels to ease removal
  • Straight-in wiring to help minimize service cable installation
  • Top or bottom feed by rotating enclosure
  • UL listed
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Product can be ordered only in multiples of
Brand Square D  
Depth 14-3/4 in  
Circuit Breaker Type QDL  
Height 22 in  
Series QO™  
Amperage 125 A  
NEMA Rating NEMA 3R  
Voltage 120/240 VAC, 120/208Y VAC  
Number of Phases 3 phase 4 wires ,, 3 phase 3 wires  
Includes Cover  
Wire Size 6 - 2/0 AWG  
Box Number 4R  
Bus Material Copper  
Cover Type surface cover  
Number of Spaces 20  
Number of Circuits 20 Circuit  
Square D Service Upgrade Load Centers Brochure - 1100BR0901 (pdf) Brochure
Square D QO and Homeline Load Centers and Enclosures Catalog - 1100CT0501 (pdf) Catalog
QO and Homeline Load Centers and Circuit Breaker Installation Instructions - S1B33894 (pdf) Installation and Instruction Manuals
Load Centers: Section 1 - Digest 179 (2024) - Load-Centers-CSEDs-Digest-Catalog-0100CT2401-SEC-01 (pdf) Catalog
Schneider Electric Specification Sheet Specification Sheet
QO Standard Load Centers, Certificate, UL - 071002-E6294D (pdf) Compliance
Square D QO Load Centers and Circuit Breakers Brochure - 998-1170221_US_B (pdf) Brochure
Small and medium project solutions, available now - brochure - 998-21381316_GMA-US_Small+and+medium+project+solutions+available+now (pdf) Brochure
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Removing Twistouts from QO™ & Homeline Load Centers | Schneider Electric Support

Tutorial for removing twist-outs from QO™ & Homeline Load Center indoor cover trim or outdoor...

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