Built for demanding commercial environments, the Square D EGB14040EPD combines standard thermal-magnetic overcurrent defense with 30mA equipment ground-fault protection. This 40A, 277VAC breaker ensures industrial assets remain safe from low-level leakage currents. Designed as a bolt-on E-Frame module, it fits perfectly into Square D NF panelboards. The breaker accommodates 14-2/0 AWG copper wiring. Rated at 35 kAIC, it features a push-to-test button, a Visi-Trip indicator, and is HACR rated.
The EPD suffix indicates it is an Equipment Protection Device. It provides a 30mA ground fault trip threshold designed to protect equipment from low-level leakage currents, rather than the 5mA threshold used for personnel protection.
Which panelboards are compatible with the EGB14040EPD?
This E-frame bolt-on circuit breaker is designed exclusively for use in Square D NF series panelboards.
How much panel space does the EGB14040EPD require?
Although it is a 1-pole breaker, EPD models in the E-frame series require two pole spaces in a Square D NF panelboard to accommodate the internal ground fault circuitry.
Can I use the EGB14040EPD to replace an EDB14040EPD?
Yes. The EGB14040EPD shares the same physical dimensions and mounting as the EDB14040EPD but offers a higher interrupting rating of 35kAIC at 277VAC compared to the 18kAIC rating of the EDB model.
Is the EGB14040EPD interchangeable with an EJB14040EPD?
Yes, they fit the same NF panelboard spaces. However, the EJB version has a higher interrupting rating of 65kAIC at 277VAC, whereas this EGB model is rated for 35kAIC. Ensure 35kAIC meets your system fault current requirements before substituting.
How is the neutral connection handled on this breaker?
The EGB14040EPD features a pigtail neutral wire that must be securely connected to the panelboard neutral bar to ensure the ground fault protection circuitry functions correctly.
Can the EGB14040EPD be used for personnel ground fault protection?
No. This breaker has a 30mA trip threshold for equipment protection (GFEP). It does not meet the 5mA Class A GFCI requirement for personnel protection.
Does this breaker include a push-to-test feature?
Yes, it includes a push-to-test button on the face of the breaker, allowing you to manually verify the operation of the ground fault protection circuitry after installation.
Can this breaker be used for heat trace applications?
Yes, the 30mA equipment protection provided by the EGB14040EPD is commonly used for heat trace systems, well pumps, and other industrial applications requiring GFEP to prevent equipment damage.
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Review summary
Customers rate this product 4.9 out of 5 based on 25 reviews.