Company: ENBSF
Filing Date: 2025-06-16
Form Type: 424B5
Source: 0001104659-25-059675
Chunk: 3

Company: ENBRIDGE INC
Filing Date: 2025-06-16
Form: 424B5
Chunk 3
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 |      |     | % |     | US$   |     | -1 |     |      |     | % |     | US$   |     | -2 |
| Underwriting discounts           |     |      |     | % |     | US$   |     |    |     |      |     | % |     | US$   |     |    |     |      |     | % |     | US$   |     |    |     |      |     | % |     | US$   |     |    |
| Proceeds to us (before expenses) |     |      |     | % |     | US$   |     | -1 |     |      |     | % |     | US$   |     | -1 |     |      |     | % |     | US$   |     | -1 |     |      |     | % |     | US$   |     | -2 |

| (1) | Plus accrued interest, if any, from June               ,                                                                            
 2025, if settlement occurs after that date.                                                                                         |
| (2) | Plus accrued interest from April 5, 2025 to, but excluding, the date of delivery. Such pre-issuance                                 
 accrued interest must be paid by the purchasers of the New 2054 Notes. On October 5, 2025, we will pay this pre-issuance accrued    
 interest to the holders of the New 2054 Notes who are holders of record on September 20, 2025, along with accrued interest from the 
 date of delivery to October 5, 2025.                                                                                                |

The underwriters expect to
deliver the Notes to the purchasers in book-entry form through the facilities of The Depository Trust Company and its direct and indirect
participants, including Euroclear Bank S.A./N.V., as operator of the Euroclear System (“Euroclear”), and Clearstream Banking,
société anonyme (“Clearstream”), on or about June , 2025.

<div align='center'>Joint Book-Running Managers</div>

| Citigroup | J.P. Morgan | Mizuho | Wells Fargo Securities |

<div align='center'>June ,
2025</div>

<div align='center'>IMPORTANT NOTICE ABOUT INFORMATION IN
THIS PROSPECTUS SUP