Company: SCE-PL
Filing Date: 2025-01-07
Form Type: 424B5
Source: 0001193125-25-002794
Chunk: 48

Company: SOUTHERN CALIFORNIA EDISON Co
Filing Date: 2025-01-07
Form: 424B5
Chunk 48
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 trustee; |

| • |     | provide security for the debt securities of any series; |

| • |     | cure any ambiguity, defect or inconsistency or make any other changes that do not adversely affect the interests 
 of the holders of debt securities; or                                                                            |

| • |     | evidence any changes in the disqualification and eligibility requirements applicable to the indenture trustee                                                 
 under the senior indenture, as permitted by the senior indenture, or effect any change to qualify the senior indenture under the Trust Indenture Act of 1939. |

With Consent of Holders.We may enter into supplemental indentures with the indenture trustees to modify the unsecured indentures or the rights of holders of the debt securities, if we obtain the consent of the holders of at least a majority in principal amount of the debt securities affected by the modification. However, without the consent of all affected holders of debt securities, no supplemental indenture may:

| • |     | change the stated maturity of the principal or interest on any debt security, reduce the principal amount or 
 interest payable, reduce any premium payable upon redemption, reduce the amount of principal of              |

13

| an original issue discount security payable upon its acceleration, change the currency in which any debt security is payable, change any right of redemption or repurchase, or impair the right to 
 bring suit to enforce any payment;                                                                                                                                                                 |

| • |     | reduce the percentages of holders whose consent is required for any supplemental indenture or waiver or reduce 
 the requirements for quorum and voting under the indentures; or                                                |

| • |     | modify certain provisions in the unsecured indentures relating to supplemental indentures and waivers of 
 covenants and past defaults.                                                                             |

A supplemental indenture that changes or eliminates any provision of the unsecured indentures expressly included solely for the benefit of holders of debt securities of one or more particular series will be deemed not to affect the rights of the holders of debt securities of any other series. Consolidation, Merger and Sale of Assets; No Financial Covenants Subject to the provisions described in the next paragraph, we will preserve our corporate existence. We have agreed not to consolidate with or merge into any other entity and not to convey, transfer or lease our properties and assets substantially as an entirety to any entity, unless:

| • |     | the entity formed by the consolidation or merger, or which acquires or leases our property and assets                                                                                                                                                
 substantially as an entirety, is organized and existing under the laws