Company: SCE-PL
Filing Date: 2025-11-24
Form Type: 424B1
Source: 0001193125-25-293755
Chunk: 157

Company: SOUTHERN CALIFORNIA EDISON Co
Filing Date: 2025-11-24
Form: 424B1
Chunk 157
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,000 |     |  $11,250,000 |     |  $11,250,000 |
| Loop Capital Markets LLC            |     |   $8,301,000 |     |  $11,250,000 |     |  $11,250,000 |
| Mischler Financial Group, Inc.      |     |   $8,301,000 |     |  $11,250,000 |     |  $11,250,000 |
| R. Seelaus & Co., LLC               |     |   $8,301,000 |     |  $11,250,000 |     |  $11,250,000 |
| Total                               |     | $442,716,000 |     | $600,000,000 |     | $600,000,000 |

Under the underwriting agreement, the underwriters will take and pay for all of the bonds we offer, if any is taken. If an underwriter defaults, the underwriting agreement provides that the purchase commitments of the non-defaultingunderwriters may be increased or the underwriting agreement may be terminated. The Underwriters’ Sales Price for the Bonds The bonds sold by the underwriters to the public will be initially offered at the prices to the public set forth on the cover of this prospectus. The underwriters propose initially to offer the bonds to dealers at such prices, less a selling concession not to exceed the percentage listed below for each tranche. The underwriters may allow, and dealers may re-allow,a discount not to exceed the percentage listed below for each tranche.

|             |     | Selling Concession |       |   |     | Reallowance Discount |       |   |
| Tranche A-1 |     |                    | 0.240 | % |     |                      | 0.120 | % |
| Tranche A-2 |     |                    | 0.240 | % |     |                      | 0.120 | % |
| Tranche A-3 |     |                    | 0.240 | % |     |                      | 0.120 | % |

After the initial public offering, the public offering prices, selling concessions and reallowance discounts may change. No Assurance as to Resale Price or Resale Liquidity for the Bonds The bonds are a new issue of securities with no established trading market. They will not be listed on any securities exchange. The underwriters have advised us that they intend to make