The Siemens NEB3B090B is a 3 Pole thermal magnetic molded case circuit breaker with a current rating of 90 Amps and a voltage rating of 600V. It has an interrupting rating of 35kAIC at 480V. The NEB3B090B has a bolt-on connection type and includes long time and instantaneous trip functions.
Which Siemens panelboards accept the NEB3B090B circuit breaker?
This NEB-frame breaker is designed specifically for Siemens Sentron P1, P2, P3, P4, and P5 panelboards. It utilizes a bolt-on mounting style to securely attach directly to the panel bus.
Can the Siemens NEB3B090B replace an older ITE breaker with the same part number?
Yes. Siemens acquired ITE, and the current Siemens NEB3B090B serves as the exact, direct replacement for legacy ITE NEB3B090B circuit breakers.
How does the thermal-magnetic trip unit on the NEB3B090B function?
The breaker uses a fixed thermal-magnetic trip unit to provide standard LI (Long-Time and Instantaneous) protection. The thermal component handles sustained overloads, while the magnetic component responds immediately to short circuits.
Is the NEB3B090B HACR rated for HVAC applications?
Yes, this breaker is HACR rated, making it suitable and approved for use with heating, air conditioning, and refrigeration equipment.
Can the NEB3B090B be reverse fed?
Yes, this breaker is rated for reverse feed applications, allowing it to be back-fed when required by your specific panel or system configuration.
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Customers rate this product 5.0 out of 5 based on 3 reviews.