Providing essential circuit protection for industrial facilities, the Federal Pacific NES2000B is a 2-pole, 200A molded case circuit breaker. It utilizes a fixed thermal and magnetic trip unit to safeguard against overloads. This unit fastens securely into Federal Pacific 2B panelboards via a bolt-on mounting style. It is an exact cross-reference replacement for the original NES2000. Capable of handling 18kAIC at 240VAC, the breaker features a common trip mechanism to ensure complete isolation.
Shunt Trip, Undervoltage Release, Auxiliary Switch, Bell Alarm, Padlock Attachment
Accessories
Load Side Lugs Included
Standards
UL 489, NEMA AB-1
Approval
UL
Temp Rating
40C
Construction Features
Main Breaker, Common Trip, Non-Interchangeable Trip, Reverse Feed
Product FAQs
8 answers
Which panelboards accept the NES2000B circuit breaker?
This breaker is engineered specifically for use in legacy Federal Pacific 2B panelboards, providing a direct fit for existing enclosures.
Is the NES2000B a direct replacement for the original NES2000?
Yes, the NES2000B is an exact cross-reference replacement for the legacy Federal Pacific NES2000 breaker, allowing you to maintain older infrastructure with matching specifications.
What wire sizes are supported by the NES2000B terminals?
The included load-side lugs accept wire gauges ranging from 1 AWG up to 250 kcmil.
How is the NES2000B secured inside the panelboard?
The breaker utilizes a bolt-on mounting style to fasten securely into the panelboard bus, ensuring a stable connection for 200A loads.
Can the NES2000B be used in DC power systems?
Yes, this breaker is rated for 250VDC applications with a 5kA interrupting capacity, in addition to its standard 240VAC rating.
How does the trip mechanism operate on the NES2000B?
It features a non-interchangeable, fixed thermal-magnetic trip unit with long-time and instantaneous functions. A common trip mechanism ensures both poles open simultaneously during a fault for complete circuit isolation.
Is the NES2000B suitable for reverse feed applications?
Yes, this breaker is rated for reverse feed installations, offering flexibility for various wiring configurations in Federal Pacific panelboards.
Can the NES2000B be used as a main breaker?
Yes, its construction features allow it to be utilized as a main breaker within compatible Federal Pacific 2B panelboards.
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