Square D QO330MQ150 - Load Center 150A 3-Phase 120/240V
Square D QO330MQ150 - Load Center 150A 3-Phase 120/240V

Square D QO330MQ150 - Load Center 150A 3-Phase 120/240V

Square D
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Square D QO330MQ150 is a 150A three-phase main circuit breaker load center designed for overcurrent protection and power distribution in residential and light commercial applications. It operates at 120/240 VAC with a 150A current rating and features a 3-pole configuration with 4-wire connection capability. The unit measures 14.25 inches by 39.38 inches, weighs 25.631 lb, and is constructed with a NEMA 1 indoor enclosure for surface mounting. It is UL Listed and RoHS Compliant, meeting safety and environmental standards for North American electrical installations. This load center is typically used for main service disconnects or branch circuit protection in multi-family dwellings, small offices, and industrial control panels.

Key Features & Specifications
  • Type: Main circuit breaker load center
  • Voltage Rating: 120/240 ACV
  • Current Rating: 150A
  • Dimensions: 14.25 in x 39.38 in
  • Standards: UL Listed, RoHS Compliant
  • Applications: Residential and light commercial power distribution
  • Switch Type: Main breaker
  • Configuration: 3-pole
  • Phase: 3
  • Amperage: 150A
  • Connection: 4-wire
  • Poles: 3
  • Protection: Overcurrent
  • Functions: Main disconnect
  • Frame Size: QO
  • Breaker Type: QO
  • Panel Type: Load center
  • Enclosure: NEMA 1
  • Nema Rating: 1
  • Wire: 4
  • Certification: RoHS Compliant, UL Listed
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Lug
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 67, UL 489
  • Installation Type: Surface mount
  • Item QTY: 1
  • Breaker Frame: QO
  • Current Rating: 150A
  • Operating Temperature Maximum Celsius: 40°C
  • Country of Origin: United States


Product Identification
  • UPC: 785901290537