Square D EGB34035 Molded Case Circuit Breaker

This E-Frame breaker is designed exclusively for bolt-on installation in Square D NF panelboards. It is not compatible with NQ or I-Line series panelboards.

The G designates the intermediate interrupting rating for Square D E-Frame breakers. It provides a 65 kA rating at 240VAC and a 35 kA rating at 480Y/277VAC, which sits between the standard EDB series and the high-interrupting EJB series.

For both copper and aluminum wiring, torque the lugs to 34.5 lb-in when using 14 AWG to 10 AWG conductors, or 49.6 lb-in for larger 8 AWG to 2/0 AWG conductors.

Yes, all E-Frame breakers share the same physical footprint and bolt-on mounting for NF panelboards. Upgrading from an EDB to an EGB safely increases your short-circuit interrupting capacity. Replacing an EJB with an EGB is only acceptable if the available system fault current does not exceed the EGB limit of 35 kA at 480Y/277VAC.

Yes, the factory-installed mechanical lugs accept 12 AWG to 2/0 AWG aluminum conductors, as well as 14 AWG to 2/0 AWG copper conductors.

This breaker features a fixed thermal-magnetic trip unit with Long-Time (L) and Instantaneous (I) functions. It is designed to protect against both gradual overloads and sudden short-circuit conditions without requiring field adjustments.

This is a bolt-on circuit breaker. It secures directly to the bus bar of a Square D NF panelboard using threaded mounting screws, providing a robust physical and electrical connection suited for commercial and industrial applications.