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Load Center, QO, 42 Spaces, 300A, 240V, Main Circuit Breaker, 1 Phase MPN:QONQ42MS300

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In Stock
Brand: Square D
Part #: QONQ42MS300
UPC: 785901706779
SKU
510-G0570818
Regular Price $3,803.51 Special Price $2,716.79

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Load Center, QO, 42 Spaces, 300A, 240V, Main Circuit Breaker, 1 Phase

This 300A, 240V Load Center from Square D is a reliable and efficient solution for managing electrical power in commercial and industrial settings. With 42 spaces for circuit breakers, it's ideal for applications where high power demands are required. The main circuit breaker ensures safe and controlled power distribution, while the compact design makes it easy to install in tight spaces. Perfect for use in offices, warehouses, and other facilities where multiple electrical systems need to be managed, this load center provides a secure and reliable way to power equipment and devices.

Top product features:

  • It has 42 circuit spaces to accommodate multiple electrical connections.
  • It is rated for 300A to handle high electrical loads.
  • It is designed for 240V single-phase power distribution.

Top product applications:

  • Home electrical panel upgrade
  • Electrical service expansion for new construction
  • Electrical panel upgrade for commercial buildings
Nq 300A 42 Ckt Mb 1Ph Al

Additional Information

  • Country of Origin: MX
  • Drop Ship Item: Yes
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 5 days
  • Minimum Order Quantity: 1
  • Unit of Measure: EA
  • Package Length: 1.00
  • Package Width: 1.00
  • Package Height: 1.00
  • Package Weight: 42.00
Product info last updated on January 15, 2026 7:55am UTC Category: Circuit Protection
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In stock