Documentation & Downloads
Square D QO342MQB200 QO Load Center 3 Phase 42 Spaces 200A NEMA 1
- MPN: QO342MQB200
- UPC: 785901290582
- PPN: SCH-QO342MQB200
CAD
$1337.11
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Loading dialog...
Looking to buy a large quantity?
To view product inventory
Description
QO Load Centers offer premium features by allowing QO breakers, ground fault interrupters, arc fault interrupters, and surge arresters to be installed inside. QO Load Centers are designed for residential and industrial use to protect electrical systems, equipment, and people. They are available in both traditional and plug on neutral configurations. There is 3 types of mains available. There is main circuit breaker, main lugs, and generator panel. Single and three phase options are available. The bus bars are tin plated copper and are shielded. Indoor and outdoors enclosures are an option. QO Load Centers enable the use of a full complement of accessories. This 3 phase load center has 42 spaces and 42 circuits. This system provides a 200A convertible main breaker in a NEMA 1 enclosure. This product is UL and CSA rated.
Features
- Engineered with a 3-phase, 4-wire configuration, this premium loadcentre delivers 42 full-sized spaces supporting up to 42 single-pole circuits. It gives commercial contractors and industrial facility managers ample room to scale out sub-circuits, dedicated machinery drops, and multi-pole distribution feeds from a centralized hub.
- Equipped with a pre-installed, heavy-duty 200A factory main breaker, this adaptable panel chassis is fully convertible to suit evolving field requirements. This structural agility allows maintenance teams to easily field-convert the incoming mains configuration as system topologies shift, minimizing original component replacement costs.
- Built featuring premium tin-plated solid copper busbars, this interior core offers maximized electrical conductivity paired with exceptional thermal endurance. The resilient tin plating acts as a protective shield against galvanic corrosion, ensuring clean, low-resistance connections to preserve breaker responsiveness across demanding commercial runs.
- Boasting an impressive 25 kA short-circuit current rating (kAIC), this rugged sub-panel provides high-tier structural defense against severe fault currents. This robust fault tolerance gives electrical engineers total safety assurance when integrating the system closer to large supply transformers where high available fault currents are present.
Documentation & Downloads
Specifications
Additional
- Amperage
- 200 A
- Max Short Circuit Current Rating
- 25 kA
- Number of Spaces
- 42
- Wiring Configuration
- 4-wire
- Height
- 997 mm (39.25 in)
- Depth
- 94 mm (3.70 in)
- Material
- Tin plated copper (busbar)
- Surface Finish
- Baked enamel gray
- Certifications
- UL Listed, cULus, CSA Certified, RoHS Compliant
- Mercury Free
- Yes
- Reach Free Of SVHC
- Yes
- Sustainable Offer Status
- Green Premium product
- Product Type
- Loadcenter, Main Breaker
Voltage120/240 V AC
Number of Phases3 phases
Number of Circuits42
Tightening Torque20 lb.in
Width362 mm (14.25 in)
Electrical ConnectionLugs
Enclosure MaterialWelded sheet steel
Enclosure RatingNEMA 1 indoor
Operating Ambient Temperature-5 °C to 40 °C (23 °F to 104 °F)
Toxic Heavy Metal FreeYes
China RoHSPro-active China RoHS declaration (out of legal scope)
RangeQO
Device CompositionGrounding bar (ordered separately)
Accessories
Loading carousel layout...
Loading carousel layout...
Similar Products
Loading carousel layout...
Loading carousel layout...
CAD
$1337.11
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Loading dialog...
Looking to buy a large quantity?
To view product inventory
CAD$1337.11/ EA
Loading add to cart quantity...
