Company: ENBSF
Filing Date: 2025-06-16
Form Type: 424B5
Source: 0001104659-25-059675
Chunk: 0

Company: ENBRIDGE INC
Filing Date: 2025-06-16
Form: 424B5
Chunk 0
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Filed pursuant to Rule 424(b)(5)

Registration No. 333-266405

The information in this preliminary
prospectus supplement and the accompanying prospectus is not complete and may be changed. A registration statement relating to these
securities has been filed with the Securities and Exchange Commission. This prospectus supplement and the accompanying prospectus are
not an offer to sell these securities and are not soliciting offers to buy these securities in any jurisdiction where the offer or sale
is not permitted.

<div align='center'>Subject to Completion, Dated June 16, 2025</div>

Preliminary Prospectus Supplement
June , 2025
(To Prospectus Dated July 29, 2022)

<div align='center'>US$

Enbridge Inc.</div>

| US$ | % Senior Notes due 2028      |
| US$ | % Senior Notes due 2030      |
| US$ | % Senior Notes due 2035      |
| US$ | 5.950% Senior Notes due 2054 |

<div align='center'>Fully and Unconditionally Guaranteed by
Enbridge Energy Partners, L.P. and Spectra Energy Partners, LP</div>

We are offering US$
aggregate principal amount of % Senior Notes due 2028 (the “2028 Notes”),
US$ aggregate principal amount of %
Senior Notes due 2030 (the “2030 Notes”), US$
aggregate principal amount of % Senior Notes due 2035 (the “2035 Notes”) and
US$ aggregate principal amount of 5.950%
Senior Notes due 2054 (the “New 2054 Notes” and, together with the 2028 Notes, the 2030 Notes and the 2035 Notes, the “Notes”).
The 2028 Notes will mature on ,
2028, the 2030 Notes will mature on ,
2030, the 2035 Notes will mature on ,
2035 and the New 2054 Notes will mature on April 5, 2054. The 2028 Notes will bear interest at the rate of %
per annum, payable semi-annually in arrears on
and , beginning
on , 2025.
The 2030 Notes will bear interest at the rate of % per annum, payable semi-annually in
arrears on and
, beginning
on , 2025.
The 2035 Notes will bear interest at the rate of % per annum, payable