Square D EDB14045 Miniature Circuit Breaker
- 45A
- 1 Pole
- Bolt-On
Square D
EDB14045
Miniature Circuit Breaker
Brand
Square D
SKU
EDB14045
Quantity
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Square D EDB14045 - 45A 1 Pole Miniature Circuit Breaker
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Quantity
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Description
Built for demanding commercial environments, this 45-amp E-frame breaker offers precise long-time and instantaneous trip functions. It provides an 18kAIC interrupting capacity at 277VAC. The device mounts into Square D NF panelboards via a reliable bolt-on configuration. It serves as a substitute for EGB14045 models when lower fault current ratings are acceptable. Maintenance personnel can easily identify faults using the signature Visi-Trip red indicator window.Specifications
| Brand | Square D |
|---|---|
| Series | EDB |
| Amperage | 45A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120VAC, 240VAC, 277VAC, 120/240VAC |
| Phase | 1 |
| AIC Rating | 25kA @ 120VAC, 18kA @ 240VAC, 18kA @ 277VAC, 18kA @ 120/240VAC |
| Frame Type | EDB |
|---|---|
| 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, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, cULus, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Visual Trip Indicator |
Product FAQs
6 answersWhat panelboards are compatible with the EDB14045 circuit breaker?
The EDB14045 is an E-Frame breaker designed exclusively for use in Square D NF series panelboards. It will not fit NQ, I-Line, or QO load centers.
What is the difference between Square D EDB, EGB, and EJB circuit breakers?
These are all E-Frame breakers that fit NF panelboards, but they have different interrupting ratings. The EDB has a standard rating of 18kA at 277VAC, while the EGB is rated for 35kA, and the EJB is rated for 65kA at 277VAC.
What are the wire size and torque specifications for the EDB14045 lugs?
The lugs accept 14 to 2/0 AWG copper or 12 to 2/0 AWG aluminum wire. The required tightening torque is 34.5 lb-in for 14 to 10 AWG wire and 49.6 lb-in for 8 to 2/0 AWG wire.
Is the EDB14045 rated for High Intensity Discharge (HID) lighting circuits?
Yes, this E-Frame breaker is UL Listed as HID rated, meaning it is approved for switching high-intensity discharge lighting loads.
Is the EDB14045 suitable for use with heating, air conditioning, and refrigeration equipment?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration motor loads.
Does the EDB14045 feature a Visi-Trip indicator?
Yes, this breaker includes a Visi-Trip indicator. When the breaker trips due to an overload or short circuit, a highly visible red indicator appears, making it easy to identify the tripped breaker in the panelboard.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 114 reviews.
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 10/21/26
Customers say these breakers perform as expected and arrive quickly. Fast shipping and competitive pricing are frequently mentioned, with many noting significant savings compared to local suppliers. Customers appreciate the easy-to-use website, responsive sales representatives, and reliable delivery. Products consistently arrive in good condition and well-packaged. Common feedback highlights dependable service, wide product availability, and seamless ordering processes. Customers report using this supplier repeatedly for their breaker needs.
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Rating
114 reviews
- BBenVerified BuyerReviewingSquare D EDB34020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars10/20/26Breaker ordered and delivered.
Called in as a last attempt because my regular supplier didn't have any of these in stock. I got a very friendly salesperson, and they sold me a new breaker for less than half of what my standard supplier would have. Definitely going here again.
- AMAlex M.Verified BuyerReviewingSquare D EDB34070 - 70A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/19/26Another Perfect Order
SuperBreakers is an amazing resource for the company I work for. Their prices are very competitive to local suppliers and lower prices than we can get in our work area.
Thank you SuperBreakers!
- JLJeffery L.Verified BuyerReviewingSquare D EDB34125 - 125A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars10/16/26Square D Breakers
Good company & prices reasonable.
- COChris O.Verified BuyerReviewingSquare D EDB34125 - 125A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars8/4/26Fast and easy
Locating the product, checking out and delivery were top notch!
- JDJohn D.Verified BuyerReviewingSquare D EDB14020 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/16/26Great place
My rep has been very responsive and helpful. He always gives me a good deal also