Part of the classic NM series, this 600A, 3-pole molded case circuit breaker provides essential overcurrent protection for commercial and industrial facilities. It features a rugged thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings. Designed as an exact drop-in replacement, the unit installs into legacy Federal Pacific switchgear and panelboards without requiring custom adapters. Rated for 30kAIC at 480VAC, it ensures robust fault clearing for heavy-duty loads.
What type of enclosures or panels is the Federal Pacific NM632600 designed for?
This NM-frame breaker is designed as a bolt-on replacement for legacy Federal Pacific switchgear and CDP panelboards. It serves as an exact drop-in replacement without requiring custom mounting adapters.
What wire sizes are accepted by the lugs on the NM632600 breaker?
The factory lugs on this 600A breaker accept two cables per phase, accommodating wire sizes from 3/0 AWG to 500 kcmil.
How does the trip unit function on the NM632600?
It features a thermal-magnetic trip unit with a fixed thermal element for overload protection and an adjustable magnetic setting. The adjustable magnetic dial allows electricians to fine-tune the instantaneous short-circuit trip threshold to coordinate with downstream devices.
Are there modern direct replacements for the Federal Pacific NM632600?
Because Federal Pacific is no longer manufacturing new breakers, exact replacements are typically original units. While some manufacturers offer retrofit kits, an original NM-frame breaker provides a direct drop-in fit for existing FPE switchgear without modification.
Is the NM632600 part of the Federal Pacific Stab-Lok residential line?
No. The NM632600 is a large molded case circuit breaker designed for commercial and industrial switchgear. It is a bolt-on N-frame breaker and is completely unrelated to the residential Stab-Lok load centers.
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Customers rate this product 5.0 out of 5 based on 1 review.