v3.26.1
FAIR VALUE MEASUREMENTS (Details) - The Plan - USD ($)
Dec. 31, 2025
Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value $ 664,873,532 $ 721,636,255
Total    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 110,463,783 134,195,293
Total | nVent Electric plc ordinary shares    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 29,922,559 25,843,927
Total | Interest-bearing cash    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 6,535,153 6,857,330
Total | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 61,546,377 89,267,540
Total | Self-directed brokerage accounts    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 12,459,694 12,226,496
Quoted Prices in Active Markets for Identical Assets (Level 1)    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 110,463,783 134,195,293
Quoted Prices in Active Markets for Identical Assets (Level 1) | nVent Electric plc ordinary shares    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 29,922,559 25,843,927
Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest-bearing cash    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 6,535,153 6,857,330
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 61,546,377 89,267,540
Quoted Prices in Active Markets for Identical Assets (Level 1) | Self-directed brokerage accounts    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 12,459,694 12,226,496
Significant Other Observable Inputs (Level 2)    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Other Observable Inputs (Level 2) | nVent Electric plc ordinary shares    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Other Observable Inputs (Level 2) | Interest-bearing cash    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Other Observable Inputs (Level 2) | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Other Observable Inputs (Level 2) | Self-directed brokerage accounts    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Unobservable Inputs (Level 3)    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Unobservable Inputs (Level 3) | nVent Electric plc ordinary shares    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Unobservable Inputs (Level 3) | Interest-bearing cash    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Unobservable Inputs (Level 3) | Mutual funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Significant Unobservable Inputs (Level 3) | Self-directed brokerage accounts    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 0 0
Fair Value Measured at Net Asset Value Per Share | Investments valued at NAV- common/collective trusts    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value 534,622,765 559,302,092
Fair Value Measured at Net Asset Value Per Share | Investments valued at NAV- stable value fund    
EBP, Investment, Fair Value and NAV [Line Items]    
Participant-directed investments — at fair value $ 19,786,984 $ 28,138,870