United States securities and exchange commission logo July 16, 2020 William Sperry Chief Financial Officer HUBBELL INC 40 Waterview Drive Shelton CT 06484 Re: HUBBELL INC Form 10-K for Fiscal Year Ended December 31, 2019 Filed February 14, 2020 File No. 001-02958 Dear Mr. Sperry: We have limited our review of your filing to the financial statements and related disclosures and have the following comments. In some of our comments, we may ask you to provide us with information so we may better understand your disclosure. Please respond to these comments within ten business days by providing the requested information or advise us as soon as possible when you will respond. If you do not believe our comments apply to your facts and circumstances, please tell us why in your response. After reviewing your response to these comments, we may have additional comments. Form 10-K for Fiscal Year Ended December 31, 2019 Management's Discussion and Analysis of Financial Condition and Results of Operations Adjusted Operating Measures, page 21 1. We note your adjusted measures exclude amortization of intangible assets associated with business acquisitions. Please expand your disclosures in all future filings to more fully address the following: Describe what amortization is being excluded from the measures [all amortization, step up], explain why it is being excluded, and identify the specific asset or assets the exclusions relate to. Explain why you believe the measures are useful. We note you refer to core operations; however, it is not clear why you exclude amortization of intangible assets on that basis since the measures include revenue from core operations generated, in part, by acquired intangible assets. Describe the limitations of the measures and clearly state that although amortization William Sperry HUBBELL INC July 16, 2020 Page 2 for intangible assets is being excluded, revenue generated, in part, from related assets is not being excluded. 2. In your reconciliations related to adjusted net income, we note you present adjustments, net of tax. Please revise your reconciliations in all future filings to reflect the impact of income taxes as a separate adjustment and to explain how the tax impact is calculated. Refer to Question 102.11 of the updated Compliance & Disclosure Interpretations on Non-GAAP Financial Measures. 3. We note your Results of Operations discussion refers to the term "organic" in the context of net sales growth and volumes. It appears your measure "organic net sales" represents a non-GAAP financial measure and it is unclear how the measure is determined, particularly what the measure excludes. Please expand your disclosure in all future filings to clearly describe your definition of "organic net sales" and provide all the information required by Item 10(e) of Regulation S-K. In closing, we remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. You may contact Kevin Stertzel at (202) 551-3723 or Anne McConnell at (202) 551- 3709 with any questions. FirstName LastNameWilliam Sperry Sincerely, Comapany NameHUBBELL INC Division of Corporation Finance July 16, 2020 Page 2 Office of Manufacturing FirstName LastName