Square D EGB24040 Molded Case Circuit Breaker
- 40A
- 2 Pole
- Bolt-On
Quantity
Square D EGB24040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Square D EGB24040 - 40A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | EGB24040 |
| Series | EGB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Frame Type | EGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards |
| Wire Gauge | 14-2/0 AWG (Cu), 12-2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, HID, NEMA AB 1, NFPA 70, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
Quantity
Square D EGB24040 - 40A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | EGB24040-R |
| Series | EGB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Frame Type | EGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards |
| Wire Gauge | 14-2/0 AWG (Cu), 12-2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, HID, NEMA AB 1, NFPA 70, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
Description
Designed for heavy-duty commercial environments, this 40A molded case breaker handles demanding electrical loads up to 480Y/277V. The bolt-on configuration ensures a solid connection within Square D NF panelboards, serving as a modern substitute for older EHB24040 units. With a 65kA interrupting capacity at 240V, it offers excellent fault clearing capabilities. The integrated Visi-Trip window allows maintenance personnel to easily locate tripped circuits.Specifications
| Brand | Square D |
|---|---|
| Part Number | EGB24040 |
| Series | EGB |
| Amperage | 40A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC |
| Frame Type | EGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D NF Panelboards |
| Wire Gauge | 14-2/0 AWG (Cu), 12-2/0 AWG (Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, HID, NEMA AB 1, NFPA 70, UL 489 |
| Approval | CSA, cULus, HACR, HID, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
Product FAQs
5 answersWhat panelboards are compatible with the EGB24040 circuit breaker?
The EGB24040 is a bolt-on E-Frame breaker designed specifically for installation in Square D NF series panelboards.
What is the difference between Square D EDB, EGB, and EJB circuit breakers?
These breakers share the same physical E-Frame dimensions and fit the same NF panelboards, but they have different interrupting ratings (AIC) at 480Y/277VAC. The EDB is rated for 18 kAIC, the EGB (like the EGB24040) is rated for 35 kAIC, and the EJB is rated for 65 kAIC.
What is the recommended tightening torque for the lugs on the EGB24040?
The factory-installed lugs require a tightening torque of 34.5 lb-in for 14-10 AWG wire, and 49.6 lb-in for 8-2/0 AWG wire.
Is the EGB24040 suitable for HVAC and lighting applications?
Yes, this breaker is both HACR (Heating, Air Conditioning, and Refrigeration) and HID (High-Intensity Discharge) rated, making it fully compliant for use with HVAC equipment and specialized lighting circuits.
Does the EGB24040 feature a tripped circuit indicator?
Yes, this breaker includes Square D's Visi-Trip indicator. When the breaker trips due to an overload or short circuit, a highly visible red flag appears in the window to help you quickly identify the faulted circuit in the panelboard.
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Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 25 reviews.
- RSRobert S.Verified BuyerReviewingSquare D EGB34015 - 15A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/21/26New breaker
Great product, exactly what I needed and shipped in a timely manner!
- EBEd B.Verified BuyerReviewingSquare D EGB34100 - 100A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars11/5/25100 amp breaker
Prompt ordering and shipping at a fair price. Thanks
- EBEd B.Verified BuyerReviewingSquare D EGB34015 - 15A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/11/25Breaker purchase
quick response and shipping
- TITim I.Verified BuyerReviewingSquare D EGB34040 - 40A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/6/25Problem Solved
The breakers showed up packaged very well and in great shape. The pricing was very competitive and solved our problem sourcing older circuit breakers.
- MKMarvin K.Verified BuyerReviewingSquare D EGB34045 - 45A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/25Square D EGB34045 3 Pole Circuit Breaker
Breaker and service was great and always has been. Looking forward more business in the future. Thanks.