Company: SCE-PL
Filing Date: 2025-03-13
Form Type: 424B5
Source: 0001193125-25-053812
Chunk: 25

Company: SOUTHERN CALIFORNIA EDISON Co
Filing Date: 2025-03-13
Form: 424B5
Chunk 25
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 United Kingdom. Any person in the United Kingdom that is not a relevant person should not act or rely on this prospectus supplement and the accompanying prospectus or their contents. The bonds are not being offered to the public in the United Kingdom. In addition, in the United Kingdom, the bonds may not be offered other than by an underwriter that:

| • |     | has only communicated or caused to be communicated and will only communicate or cause to be communicated an                                                                                                                                    
 invitation or inducement to engage in investment activity (within the meaning of Section 21 of the FSMA) received by it in connection with the issue or sale of the bonds in circumstances in which Section 21(1) of the FSMA is complied with 
 or does not apply; and                                                                                                                                                                                                                         |

| • |     | has complied and will comply with all applicable provisions of the FSMA with respect to anything done by it in 
 relation to the bonds in, from or otherwise involving the United Kingdom.                                      |

Hong Kong The bonds have not been and may not be offered or sold in Hong Kong by means of any document other than (i) to “professional investors” within the meaning of the Securities and Futures Ordinance (Cap. 571, Laws of Hong Kong) (the “SFO”) and any rules made thereunder, or (ii) in other circumstances which do not result in S-19

the document being a “prospectus” within the meaning of the Companies (Winding Up and Miscellaneous Provisions) Ordinance (Cap. 32, Laws of Hong Kong) (the “C(WUMP)O”) or
which do not constitute an offer to the public within the meaning of the C(WUMP)O; and no advertisement, invitation or document relating to the bonds have been or may be issued or may be in the possession of any person for the purpose of issue (in
each case whether in Hong Kong or elsewhere), which is directed at, or the contents of which are likely to be accessed or read by, the public in Hong Kong (except if permitted to do so under the securities laws of Hong Kong) other than with respect
to bonds which are or are intended to be disposed of only to persons outside Hong Kong or only to “professional investors” within the meaning of the SFO and any rules made thereunder.

Japan

The bonds
have not been and will not be registered under the Financial Instruments and Exchange Act of Japan (Act No.25 of 1948, as amended;