Square D NQ472L2 NQ Panelboard Interior, 225A, 3 Phase, 72 Pole Spaces, Aluminum Bus

MPN: NQ472L2
UPC: 785901502487
PPN: SCH-NQ472L2

$1124.11

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Description

NQ Panelboard interiors may be used in a wide variety of applications including: commercial buildings; industrial buildings; data centers; stadiums; and offices. NQ Panelboards are versatile panelboards that feature a wide selection of bolt-on and plug-on branch circuit breakers, integral main circuit breakers, branch mounted SPDs, and a wide variety of ready to install accessory kits. The interiors are field convertible to support top or bottom feed. This main lugs interior is rated 225A for 240VAC and 48VDC, has a plated aluminum bus, and 72 pole spaces. NQ Panelboards are convertible from main lugs to main circuit breaker. NQ Panelboards offer 200% rated neutrals for nonlinear loads. Factory installed options include phenolic nameplates, power monitoring of mains and branch circuits, split bus interiors, and neutral assemblies which support up to 36 100A branch circuit breakers. NQ Panelboards are available with IP2X per IEC 60529 barriers for UL service entrance applications. Interior has an interrupt current rating of up to 65kA (depending upon the circuit breakers installed). This NQ panelboard interior is UL listed for applications in the USA and Canada. Interior accepts QOB, QOBVH and QHB bolt-on and QO, QOVH and QH plug-on branch circuit breakers. Standard mechanical main lug connections will accept copper or aluminum wire. NQ Panelboard interiors are available with plated aluminum or copper bus. 100A branch circuit breakers may be installed on both sides of NQ Panelboard interiors.

Features

Featuring a high-density, 72-circuit layout, this panelboard interior maximizes available space within a standard footprint, allowing commercial electricians and facility engineers to consolidate distribution. It accommodates a vast array of single-, double-, or three-pole breakers, ensuring your infrastructure is fully prepared for tenant fit-outs, machinery additions, and unexpected electrical load expansions without requiring a costly second panel enclosure.
Engineered for ultimate versatility, the chassis accepts both standard Square DTM QOTM plug-on breakers and QOB bolt-on circuit breakers. This dual compatibility allows contractors to meet rigid project specifications such as utilizing high-vibration resistant bolt-on breakers for industrial machinery while dropping in cost-effective plug-on components for standard commercial lighting circuits greatly simplifying on-site inventory management.
Shipped out of the box with a 225-amp, 3-phase, 4-wire main lug configuration, this interior easily converts into a main circuit breaker panelboard using simple, field-installable conversion kits. This agile design allows you to quickly adapt to shifting design-build requirements on the job site or seamlessly upgrade sub-panels to primary service entrance equipment without scrapping the original core hardwar
Built with a fully symmetrical chassis design, this interior can be flipped in the field to support either top or bottom cable incoming feeds. This eliminates installation bottlenecks and matching design errors, enabling field technicians to rout incoming 240V AC or 48V DC feeder lines naturally based on existing structural building layouts and conduit path
Engineered to seamlessly integrate with 200% rated neutral accessory kits, this interior is purpose-built to mitigate excessive neutral bus overheating caused by non-linear electronic loads. This essential feature safeguards sensitive commercial data centers, LED lighting arrays, and office server rooms from catastrophic harmonic feedback failures and tracking fires, keeping operations code-compliant and safely online.

Documentation & Downloads

Specifications

Additional

Amperage	225 A
Interrupt Current Rating	10 kA, 22 kA, 65 kA
Wiring Configuration	4-wire
Loadcentre Type	Main lugs
Number of Pole Spaces	72
Enclosure Nominal Width	20 in
Height	39 in
Material	Aluminium
Connections - Terminals	Lug line AWG 6...350 kcmil aluminium, Lug neutral AWG 6...350 kcmil aluminium
Toxic Heavy Metal Free	Yes
Reach Regulation	Free of SVHC above threshold
Standards	UL, CSA

Voltage	240 V AC, 48 V DC
Number of Phases	3 phases
Circuit Breaker Type	QOB, QOB-VH, QHB
Number of Circuits	72
Enclosure Nominal Height	44 in
Enclosure Nominal Depth	5.75 in NEMA 1, 6.5 in NEMA 3R/5/12
Width	10.44 in
Busbar Material	Aluminium
Tightening Torque	4.52-5.65 N.m (AWG 6 2/0), 11.3 N.m (AWG 6 2/0), 31.07 N.m (AWG 6 350 kcmil)
Mercury Free	Yes
Eu Rohs Directive	Compliant
Country of Origin	Mexico