Engineered for heavy-duty commercial environments, this three-pole 100A molded case breaker provides dependable LI protection. It helps keep vintage electrical infrastructure running safely. Designed as a drop-in solution, the unit installs into classic Federal Pacific Stab-Lok panelboards. It acts as a precise cross-reference for the NES2300, eliminating the need for complex retrofits. With an 18kAIC rating at 240VAC, the common trip feature ensures all phases disconnect simultaneously.
Shunt Trip, Undervoltage Release, Bell Alarm, Auxiliary Switch
Accessories
Load Side Lugs Included
Standards
UL 489, NEMA AB 1
Approval
UL
Temp Rating
40C
Construction Features
Common Trip, Non-Interchangeable Trip
Product FAQs
7 answers
What panelboards are compatible with the Federal Pacific NES2300?
This breaker is designed for use in classic Federal Pacific Stab-Lok panelboards that accept NES frame molded case circuit breakers.
How does the NES2300 mount into the panelboard?
It features a plug-on mounting style, allowing it to drop directly into compatible Federal Pacific Stab-Lok enclosures without the need for complex retrofits or aftermarket adapters.
What wire sizes are accepted by the load side lugs on this breaker?
The load side lug terminals on the NES2300 accept wire sizes ranging from 1 AWG up to 3/0 AWG.
Are the catalog numbers 2300 and NES2300 interchangeable?
Yes, the Federal Pacific 2300 and NES2300 refer to the same 100A, 3-pole NES frame breaker. These part numbers are used interchangeably for this exact replacement component.
Can the NES2300 be used in direct current applications?
Yes, in addition to its standard 18kA interrupting capacity at 240V AC, this breaker is rated for 5kA at 250V DC, making it suitable for specific direct current systems.
Does this breaker provide common trip functionality?
Yes, as a 3-pole breaker, it features an internal common trip mechanism. If an overload or short circuit occurs on any single phase, all three poles will disconnect simultaneously to ensure system safety.
Is the trip unit on the NES2300 adjustable?
No, this breaker features a non-interchangeable thermal-magnetic trip unit with fixed long-time and instantaneous (LI) settings.
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