Delivering reliable commercial power distribution, this 30A Siemens Sentron series breaker provides thermal-magnetic protection for demanding environments. It mounts into P1, P2, P3, P4, and P5 panelboards using a standard bolt-on configuration. While this specific NEB frame is transitioning to the newer 3VA4130-5ED34-0AA0 substitute, it remains fully supported for existing infrastructure. Features include an 85kAIC rating at 240V and factory-installed load side lugs for immediate wiring.
Which Siemens panelboards are compatible with the NEB3B030B?
This 30-amp EG frame breaker is designed as a bolt-on branch device for Siemens Sentron P1, P2, P3, P4, and P5 series panelboards.
How are the line and load connections configured on this breaker?
As a dedicated panelboard-mount breaker, the line side is designed to bolt directly to the internal panel bus. Standard wire lugs are provided only on the load side for branch circuit wiring.
What wire sizes are accepted by the load-side lugs?
The factory-installed load lugs accommodate wire sizes from 14 AWG up to 1/0 AWG, and they are rated for use with both copper (Cu) and aluminum (Al) conductors.
What is the interrupting capacity of this breaker at its maximum AC and DC voltages?
At its maximum AC rating of 600VAC or 347VAC, the breaker delivers 22kAIC. When applied to its maximum DC rating of 250VDC, it provides a 35kAIC interrupting capacity.
How does the trip unit on this NEB frame breaker operate?
It utilizes fixed thermal and fixed magnetic elements to provide standard LI (Long-Time and Instantaneous) protection against overloads and short circuits without user-adjustable dials.
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Customers rate this product 5.0 out of 5 based on 3 reviews.