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Square D QO™ N1 Main Breaker Loadcenters 150 A 120/240 VAC, 120/208Y VAC 42 Space

Mfg #: QO342MQ150
BOR #: 1387563
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QO™ Main Breaker Loadcenters

  • NEMA 1
  • Equipment ground bar included with main lug Loadcenters
  • Service entrance equipment capable panels
  • Flush or surface mounting
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Product can be ordered only in multiples of
Brand Square D  
Interrupting Rating 25 kAIC  
Number of Spaces 42 Space  
Amperage 150 A  
Series QO™  
NEMA Rating NEMA 1  
Height 39.37 in  
Number of Phases 3 phase 4 wires ,, 3 phase 3 wires  
Wire Size 4 AWG - 300 kcmil  
Voltage 120/240 VAC, 120/208Y VAC  
Bus Material Copper  
Box Number 12  
Cover - Catalog Number (Flush) QOC342MQF  
Enclosure Type N1 Enclosure  
Cover - Catalog Number (Surface) QOC342MQS  
Number of Circuits 42 Circuit  
Cover Type Combination/Flush (Not Included)  
Square D QO Load Centers and Circuit Breakers Brochure - 998-1170221_US_B (pdf) Brochure
Schneider Electric Specification Sheet Specification Sheet
Small and medium project solutions, available now - brochure - 998-21381316_GMA-US_Small+and+medium+project+solutions+available+now (pdf) Brochure
Load Centers: Section 1 - Digest 179 (2024) - Load-Centers-CSEDs-Digest-Catalog-0100CT2401-SEC-01 (pdf) Catalog
Certificate, UL - UL_Certificate_E6294-19970527 (pdf) Compliance
Digest Catalog 01: Load Centers - 0100CT1901_SEC-01 (pdf) Catalog
Square D Service Upgrade Load Centers Brochure - 1100BR0901 (pdf) Brochure
QO and Homeline Load Centers and Circuit Breaker Installation Instructions - S1B33894 (pdf) Installation and Instruction Manuals
Converting QO™ 3ph Load Centers to Main Lug Operation | Schneider Electric Support

Tutorial for installing QOL3225 Main Lug Kit and Q2FP Filler Plate into QO™ 3 Phase, High-Amp...

Installing Service Barrier into QO™ 3 Phase 125A-225A Load Centers | Schneider Electric Support

Tutorial for installing the PKSB3 Service Barrier into the QO™, 3 Phase, Series S0_, (125A-225A)...

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