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v3.25.3

Segment Information - Financial Information by Reportable Segment (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) segment | Sep. 30, 2024 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segment |  |  | 2 |
Net sales | $ 1,054.0 | $ 782.0 | $ 2,826.4 | $ 2,253.9
Reportable segment income | 166.3 | 133.2 | 453.0 | 410.0
Cost of goods sold | 659.3 | 470.9 | 1,746.2 | 1,344.3
Selling, general and administrative | 207.8 | 161.8 | 570.0 | 450.7
Research and development | 20.6 | 16.1 | 57.2 | 48.9
Systems Protection |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 715.6 | 477.1 | 1,855.8 | 1,357.8
Electrical Connections |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 338.4 | 304.9 | 970.6 | 896.1
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 1,054.0 | 782.0 | 2,826.4 | 2,253.9
Reportable segment income | 247.8 | 197.0 | 669.1 | 573.3
Operating Segments | Systems Protection |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 715.6 | 477.1 | 1,855.8 | 1,357.8
Reportable segment income | 146.2 | 104.4 | 387.5 | 303.0
Cost of goods sold | 470.5 | 302.7 | 1,196.9 | 853.3
Selling, general and administrative | 85.7 | 60.8 | 236.0 | 174.6
Research and development | 13.2 | 9.2 | 35.4 | 26.9
Operating Segments | Electrical Connections |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net sales | 338.4 | 304.9 | 970.6 | 896.1
Reportable segment income | 101.6 | 92.6 | 281.6 | 270.3
Cost of goods sold | 184.9 | 164.2 | 536.5 | 479.1
Selling, general and administrative | 46.3 | 42.5 | 136.1 | 128.6
Research and development | $ 5.6 | $ 5.6 | $ 16.4 | $ 18.1

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