Olivier Leonetti
Executive Vice President and Chief Financial Officer at Eaton
Thanks, Craig. I will start by providing a summary of our Q4 results, which again includes many new records. We posted 4th-quarter record sales of $6.2 billion, up 6% organically or 5%, including 1 point of FX headwind. Hurricane Helane and labor strikes in the aerospace industry negatively impacted Q4 sales by approximately $80 million or 130 basis-points. Operating profit grew 13% and segment margin expanded 190 basis-points to an all-time record 24.7%.
Adjusted EPS of $2.83 increased by 11% over the prior year. This is a Q4 quarterly record and near the high-end of our guidance range. This performance resulted in an all-time record cash-flow performance, including operating cash-flow of $1.6 billion, up 23% on a year-over-year basis and free-cash flow of $1.3 billion, up 27% versus prior year. I will now review the segment's quarterly results, followed by a recap of the year.
On Slide 8, we detail our Americas results. The business continues to execute very well and delivered another record quarter. We set new records for operating profit and margins and posted a Q4 quarterly record sales. Organic sales growth of 9% was driven primarily by strength in data center, along with solid growth in commercial and institutional markets. Without the impacts of the hurricane disruptions to the business, organic growth will have been in the double-digits. Operating margin of 31.6% was up 310 basis-points versus prior year, benefiting from higher sales. On a rolling 12-month basis, orders remain at the -- at a high-level of 16%, demonstrating continued tailwinds from the various megatrends.
We had particular strength in the data center market where activity remains very robust. For example, Dodge data shows US announced data center project start are up 99% in 2024 and 173% year-over-year in Q4. US data center construction -- construction backlog is now estimated to extend out about seven years based on 2024 build rates. Electrical Americas backlog increased 29% year-over-year with a book-to-bill ratio of 1.2 on a rolling 12-month basis. These results close-out a record year for the business, which posted full-year revenue of $11.4 billion, organic growth of 13% and margins of 30.2%, up 370 basis-points over prior year.
With the tailwinds from secular trends, incremental capacity coming online, strong execution and robust backlog, Electrical Americas remains well-positioned as we enter 2025. The next chart summarizes the results of our else recall global segment. Total revenue growth of 4% included organic growth of 5.5% and FX tailwind of 1.5%. We had strength in data center and utility markets. Regionally, we saw continued strength in APAC with double-digit organic growth and high single-digit organic growth in EMEA. Operating margin of 17.7% was down 110 basis-points versus prior year, primarily driven by mix. Orders were up 4% on a rolling 12-month basis.
Similar to sales growth, the strength was driven by the data center and utility markets. Backlog increased 16% over prior year and book-to-bill continues to remain strong. Q4 was 1.1% on a rolling 12-month basis. For the full-year, Electrical Global posted 4% organic growth with 18.4 margins. Before moving to our industrial businesses, I'd like to briefly recap the combined electrical segments. For Q4, we posted organic growth of 8% and segment margin of 26.7%, which was up 170 basis-points over prior year. For the full-year, we posted organic growth of 10% and segment margins of 26%, up 220 basis-points over 2023.
On a rolling 12-month basis, orders were up 12% and our book-to-bill ratio for our electrical sector remains very strong at 1.1%. We remain confident in our positioning for continued growth with strong margins in our overall electrical business. Page 10 highlights our Aerospace segment. We posted all-time record sales and Q4 record operating profit. Organic and total growth was 9% for the quarter, driven with growth in all end-markets with commercial aftermarket.
Without the impacts of the aerospace industry strikes, organic growth will have been indeed double-digits. Operating margin was strong at 22.9%, up 50 basis-points year-over-year, mostly from higher sales. On a rolling 12-month basis, orders increased 10%, up from 6% in the prior quarter with particular strength in military OEM, commercial OEM and commercial aftermarket. Year-over-Year backlog increased 16% and was up 2% sequentially. On a relief rolling 12-month basis, our book-to-bill for our Aerospace segment remains strong at 1.1%. On the full-year basis, Aerospace posted 10% organic growth with 23% margins.
Moving on to our Vehicle segment on Page 11. In the quarter, total revenue was down 10%, including a 7% organic decline, primarily driven by weaknesses in the North-America, EMEA and APAC light-vehicle markets and three points of unfavorable FX. Despite the top-line weaknesses, the team executed well from a margin perspective. Operating margin came in at 18.8%, 90 basis-points over prior year from improved operating efficiencies. On a full-year basis, Vehicle recorded organic revenue down 5% with 18% margins.
On Page 12, we show results of our e-mobility business. Total revenue was down 11%, including a 10% organic decline, primarily driven by our customers' program launch and production ramp-up delays and 1% unfavorable FX. Operating profit was $3 million, resulting in operating margin of 1.8% for the quarter. On a full-year basis, e-mobility posted 4% organic growth with negative 1% margins.
Moving to Page 13, we show our Eltrical and aerospace backlog. Updated through Q4, backlog continues to be very strong with electrical at $11.8 billion and aerospace at $3.7 billion for total backlog of $15.5 billion. Versus prior year, our backlogs have grown by 27% in electrical and 16% in aerospace. They are also increasing sequentially. As noted earlier, book-to-bill ratios for electrical and aerospace are 1.1 and 1.1 respectively. The continued growth in our backlog underscores our high-level of confidence in future demand.
In addition to our strong backlog growth in 2024, the next page shows the continued strength in our negotiations pipeline, which supports our expectation for strong market and structurally higher organic -- organic growth rates. In Electrical Americas, the pipeline has increased nearly four times since 2019. In fact, the pipeline grew 40% year-over-year, showing acceleration versus our multi-year CAGR of 29%. The year-over-year increase was largely driven by data center, commercial and institutional -- and institutional and utility end-markets. Within the commercial and institutional end-markets, growth was driven by education, government and transportation. This is even stronger than the 13% organic growth in our Electrical Americas business, which suggests continued strength going-forward.
Now, I will pass it over to Craig to summarize our 2024 performance.