Built for three-phase commercial applications, this 15A E-frame breaker delivers consistent thermal-magnetic protection for lighting and distribution circuits. It fastens into Square D NF panelboards using a reliable bolt-on mounting system. With an interrupting rating of 65kA at 240V and 35kA at 480Y/277V, the unit includes Visi-Trip visual indication alongside HACR and HID certifications.
Which panelboards are compatible with the EGB34015?
This breaker is engineered specifically for bolt-on installation in Square D NF series lighting and distribution panelboards.
What is the recommended tightening torque for the wire terminals?
The load-side lugs should be torqued to 30 lbf-in (3.4 N-m) for both copper and aluminum wire sizes from 14 AWG to 6 AWG.
Can the EGB34015 be reverse-fed?
Yes. Standard EGB circuit breakers do not have line and load markings, which allows them to be backfed for use as a main breaker in suitable panel applications.
What is the difference between the EDB34015, EGB34015, and EJB34015?
These E-frame circuit breakers have identical physical dimensions and fit the same NF panelboards, but they offer different interrupting ratings. At 480Y/277VAC, the EDB is rated for 18kAIC, the EGB is rated for 35kAIC, and the EJB is rated for 65kAIC.
Can this breaker be used on a straight 480V ungrounded delta system?
No. The 480Y/277VAC designation is a slash rating. This indicates the breaker is only approved for use on solidly grounded wye systems where the maximum line-to-ground voltage does not exceed 277VAC.
How much mounting space does the EGB34015 require in a panel?
This three-pole E-frame breaker occupies three standard mounting spaces in a Square D NF panelboard.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 25 reviews.