Factory Assembled Options and Interiors
Almost all RTI interiors are available factory assembled (with main, sub-feed, and/or branch circuit breakers, sub-feed or -through feed lugs, aluminum, copper, or 200% neutrals).
Some options are only available factory assembled (or as part of a custom OEM commercial reference):
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PowerPact L main circuit breaker (up to 600 A)
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Engraved name plates
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Lighting contactors
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Canadian service entrance barriers
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Boxes wider than 20" (26", 32")
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Power meters or circuit monitors
SurgeLogic SPD Protection
The Surgelogic IMA series surge protective device is a modular parallel surge protective device (SPD). The IMA device is a multi-stage suppression circuit consisting of field-proven, fast-acting, 34 mm metal oxide varistors (MOVs).
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Available surge current ratings: 100 kA, 120 kA, 160 kA, 200 kA, 240 kA
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Ready to install SPD interiors (42 circuit, 3-phase, 4-wire) 250 A or 400 A:
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480Y/277 Vac—120 kA, 160 kA
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600Y/347 Vac—120 kA
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Separated Distribution and Split Bus
250 A NF panelboards are available in separated distribution or split bus configurations, see Separated Distribution, Split Bus.
Factory Assembled Interiors (available to OEMs as custom Commercial References)
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3P 4W, 1P 3W, 3P 3W (240 Vac)
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100 A, 250 A, 400 A, 600 A, 800 A (MLO)
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Aluminum or copper bus up to 400 A
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Copper only 600 A, 800 A
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For more detailed NF main lug interiors and main circuit breaker interiors please review catalog 1670CT0701, and Digest 178, Section 9.
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Panelboards with PowerPact L main circuit breaker require an 8.75 in. deep box.
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800 A main lug panelboards require an 8.75 in. deep enclosure.
Power Meters
NF and NQ Panelboards accept the same power meters for mains and branch circuits, see Power Meters and Circuit Monitors (Mains and/or Branches).