The Siemens NEB2B110B delivers dependable thermal-magnetic protection for commercial and industrial facilities. This 2-pole, 110A molded case circuit breaker is a core component of the SENTRON NEB/HEB frame lineup. Designed for secure installation, it bolts into Siemens P1 through P5 panelboards. For modernizations, Siemens has replaced this model with the 3VA5111-5ED21-0AA0. Featuring a robust 35 kAIC interrupt rating at 480VAC, it ensures system safety and accommodates 6-3/0 AWG conductors.
Which Siemens panelboards are compatible with the NEB2B110B?
This bolt-on circuit breaker is designed for installation in Siemens P1, P2, P3, P4, and P5 series panelboards.
What wire sizes and materials are accepted by the NEB2B110B lugs?
The factory-installed lugs accept 6 AWG to 3/0 AWG copper or aluminum (Cu/Al) conductors.
Can the NEB2B110B be used in DC electrical systems?
Yes, this breaker is rated for DC applications, providing an interrupting capacity of 35kAIC at 250VDC.
What is the interrupting capacity of this breaker on a 600V system?
When installed in 600VAC or 347VAC systems, the NEB2B110B provides a maximum interrupting rating of 22kAIC.
What is the difference between the Siemens NEB and HEB frame breakers?
Both share the same physical footprint and panelboard compatibility, but the HEB frame offers a higher short-circuit interrupting capacity than the standard NEB frame.
Are the trip settings on the NEB2B110B adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous (LI) trip functions cannot be adjusted in the field.
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Customers rate this product 5.0 out of 5 based on 3 reviews.