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NF Panelboards

Class 1670 / Refer to Catalog 1670CT9601

For Non-Linear Loads (200% Rated Neutral)

NF 480Y/277 Vac Max.

Table 9.53:
Main Lug Interiors—bolt-on circuit breakers only
Max.
No. of
Single Pole
Circuit
Breakers
2246.
3289.
1820.
 75.
351.
1469.
2617.
3835.
2100.
 75.
442.
1735.
2888.
4106.
2371.
 75.
442.
1735.
2972.
4141.
2373.
 75.
524.
1768.
3331.
4500.
2732.
 75.
524.
1768.
Circuit
Breakers
Interior, Front, Main
Circuit Breaker
Adapter Kit
Circuit Breakers
Separately)
4711.
5747.
4270.
 75.
366.
1477.
2562.
3780.
1525.
 75.
442.
1735.
2857.
4075.
1820.
 75.
442.
1735.
3219.
4388.
2100.
 75.
524.
1768.
3490.
4659.
2371.
 75.
524.
1768.
3600.