--- title: Connector Solutions for Residential & Commercial HVAC | Hirose description: Connector solutions for residential and commercial HVAC systems, supporting power, control, sensing, and communication in split and packaged units. image: https://info.hirose.com/hubfs/HiroseAmericas_Trane_HVAC_Image_022026.jpeg --- [![](https://info.hirose.com/hubfs/New-Hirose-Americas-Logo-2023.png)](https://www.hirose.com/us/) - [PRODUCT](https://www.hirose.com/product/) - [ABOUT US](https://www.hirose.com/us/about/) - [COMPANY NEWS](https://www.hirose.com/us/companynews/) - [CAREERS](https://www.hirose.com/us/recruitment/) - [EVENTS](https://www.hirose.com/us/event/) - [CONTACT](https://info.hirose.com/contact) - [BLOG](https://blog.hirose.com) - [PARTNERS](https://www.hirose.com/corporate/en/about/partner) - [Global](https://www.hirose.com/corporate/ja/) - Region Site ▼ - [USA](https://www.hirose.com/us/) - [EUROPE](https://www.hirose.com/eu/) - [CHINA](https://www.hirose.com/cn/) - [HONG KONG](https://www.hirose.com/hk/) - [TAIWAN](https://www.hirose.com/tw/) - [SINGAPORE](https://www.hirose.com/sg/) - [MALAYSIA](https://www.hirose.com/my/) - [KOREA](http://www.hirose.co.kr/) - [PRODUCT](https://www.hirose.com/product/) - [ABOUT US](https://www.hirose.com/us/about/) - [COMPANY NEWS](https://www.hirose.com/us/companynews/) - [CAREERS](https://www.hirose.com/us/recruitment/) - [EVENTS](https://www.hirose.com/us/event/) - [CONTACT](https://info.hirose.com/contact) - [BLOG](https://blog.hirose.com) - [PARTNERS](https://www.hirose.com/corporate/en/about/partner) - [Global](https://www.hirose.com/corporate/ja/) - Region Site ▼ - [USA](https://www.hirose.com/us/) - [EUROPE](https://www.hirose.com/eu/) - [CHINA](https://www.hirose.com/cn/) - [HONG KONG](https://www.hirose.com/hk/) - [TAIWAN](https://www.hirose.com/tw/) - [SINGAPORE](https://www.hirose.com/sg/) - [MALAYSIA](https://www.hirose.com/my/) - [KOREA](http://www.hirose.co.kr/) [Products](https://info.hirose.com/applications/hvac/commercial-residential-hvac#PRODUCT) [Application Guides/Resources](https://info.hirose.com/applications/hvac/commercial-residential-hvac#Application-Guide) [All HVAC Systems](https://info.hirose.com/applications/hvac?hsLang=en) [Contact an Expert](https://hubs.li/Q03__fcC0) OVERVIEW   ## **Driving Innovation** Across Every Automation System   Hirose delivers high-performance connector solutions trusted by the world’s leading automotive brands and emerging tech innovators. From LiDAR and lighting to battery systems and infotainment, our rugged, compact designs support next-generation vehicle performance in the harshest environments.   ### See What’s Next in Automotive Let’s connect in person! Meet our team and explore what’s possible at these upcoming shows: Battery Show – Sept. 10–12, Novi, MI EV Tech Expo – Nov. 5–7, Long Beach, CA View Full Event Schedule   ## **Connector Solutions for Commercial & Residential HVAC Systems**   **Connector support for packaged units, split systems, and residential and commercial HVAC equipment.** Connector solutions for HVAC system integration—supporting communication, sensing, and power connectivity across indoor and outdoor units in residential and commercial installations. Built to support reliable operation in space-constrained, vibration- and temperature-exposed environments.   ### **Connector Selection for HVAC Systems**     Design considerations for selecting reliable connectors across packaged and split HVAC system architectures. **[Download Now \>](https://info.hirose.com/hubfs/HVAC%20Unit%20Connector%20Recommendation%20Guide.pdf?hsLang=en)** [![Hirose\_Connector\_Recommendations\_HVAC\_Trane\_1-2026](https://info.hirose.com/hs-fs/hubfs/Hirose_Connector_Recommendations_HVAC_Trane_1-2026.jpg?width=2000&height=1125&name=Hirose_Connector_Recommendations_HVAC_Trane_1-2026.jpg "Hirose_Connector_Recommendations_HVAC_Trane_1-2026")](https://info.hirose.com/hubfs/HVAC%20Unit%20Connector%20Recommendation%20Guide.pdf?hsLang=en)     **Featured Product** Featured connector solution for branched signal and power wiring in HVAC control systems.  FEATURED PRODUCT   ### **Branch Wire-to-Board Connectivity for HVAC Control Wiring**   HVAC control boards often require multiple signal and power lines to branch from a single source across indoor and outdoor units. The DF51B Branch Series simplifies wiring with positive-lock, crimp-type connections that support clean cable routing and reliable connections in compact HVAC control enclosures. [**Watch Now \>**](https://youtu.be/3J1C5kU_7E4) [LEARN MORE ABOUT \> DF51B SERIES](https://info.hirose.com/products/df51b?hsLang=en)     **Industry Insights** Technical insights and design resources for industrial and HVAC system development. ![HiroseElectric\_Americas\_Industry\_Insights\_Logo\_1-2026](https://info.hirose.com/hs-fs/hubfs/HiroseElectric_Americas_Industry_Insights_Logo_1-2026.jpg?width=2000&height=832&name=HiroseElectric_Americas_Industry_Insights_Logo_1-2026.jpg "HiroseElectric_Americas_Industry_Insights_Logo_1-2026") ![Hirose Americas Webinar PC Icon LP Social Image 072024](https://info.hirose.com/hubfs/Hirose%20Americas%20Webinar%20PC%20Icon%20LP%20Social%20Image%20072024.png) #### [WEBINAR SERIES: USB-C FOR INDUSTRIAL DESIGN?](https://youtu.be/seZYmXcYTbU) ![Hirose Americas Book Icon LP Social Image 072024](https://info.hirose.com/hubfs/Hirose%20Americas%20Book%20Icon%20LP%20Social%20Image%20072024.png) #### [BLOG: WHY USB-C IS READY FOR INDUSTRIAL DESIGN](https://blog.hirose.com/why-usb-c-is-ready-for-industrial-design?hsLang=en) ![Hirose Americas Map Icon LP Social Image 072024](https://info.hirose.com/hubfs/Hirose%20Americas%20Map%20Icon%20LP%20Social%20Image%20072024.png) #### [DESIGN SHORTCUTS: MAPPED TO SYSTEM AREAS](https://info.hirose.com/hubfs/HVAC%20Unit%20Connector%20Recommendation%20Guide.pdf?hsLang=en) ## [SUCCESS STORIES: CASE STUDIES & EBOOKS   **Real-World Solutions** Innovative Solutions for Real-World Challenges   Explore how Hirose’s connectors drive innovation across industries by solving complex design challenges. Learn from detailed case studies and short stories that showcase our expertise in advanced technologies. [EXPLORE REAL-WORLD INNOVATIONS](https://info.hirose.com/case-studies-short-stories?hsLang=en)](https://info.hirose.com/hubfs/HVAC%20Unit%20Connector%20Recommendation%20Guide.pdf?hsLang=en) RESOURCES: DESIGN GUIDES & TOOLS   ## **Refine Your Design** ## Advanced Tools & Guides for Design Excellence   Comprehensive library to help tackle complex design challenges. From application blueprints to detailed technical brochures, discover how Hirose’s advanced solutions can elevate your product designs. [UNLOCK DESIGN EXCELLENCE](https://info.hirose.com/enabling-innovation-resources?hsLang=en) SUCCESS STORIES: CASE STUDIES & EBOOKS   ## **Real-World Solutions** ## Innovative Solutions for Real-World Challenges   Explore how Hirose’s connectors drive innovation across industries by solving complex design challenges. Learn from detailed case studies and short stories that showcase our expertise in advanced technologies. [EXPLORE REAL-WORLD INNOVATIONS](https://info.hirose.com/case-studies-short-stories?hsLang=en) RESOURCES: DESIGN GUIDES & TOOLS   ## **Refine Your Design** ## Advanced Tools & Guides for Design Excellence   Comprehensive library to help tackle complex design challenges. From application blueprints to detailed technical brochures, discover how Hirose’s advanced solutions can elevate your product designs. [UNLOCK DESIGN EXCELLENCE](https://info.hirose.com/enabling-innovation-resources?hsLang=en)   ## **Case Studies** ## Real-World Defense & Aerospace Solutions   See how top OEMs overcame design challenges in XR and tactical systems with Hirose connectors—achieving lighter, smaller, and more rugged solutions. [READ CASE STUDIES](https://info.hirose.com/lidar-ebook?hsLang=en)   ## **Application Guides** ## Design with Confidence   Explore connector blueprints for defense and aerospace XR devices—revealing placement, pitch, and layout strategies for robust, space-saving integration. [VIEW YOUR BLUEPRINT](https://info.hirose.com/lidar-application-solution-guide?hsLang=en)        **HVAC System Connector Products** Connector solutions designed to support control, sensing, and power distribution in HVAC equipment, including packaged units, split systems, and residential and commercial installations. [HVAC](https://info.hirose.com/hubfs/HVAC%20connector%20recommendation%20placeholder.pdf?hsLang=en)  |  [REFRIDGERATED CONTAINERS](https://info.hirose.com/hubfs/HiroseElectric_ColdStorageContainer_ConnectorRecommendations_Jan2026.pdf?hsLang=en)   ### [BH12 Series](https://info.hirose.com/products/bh12?hsLang=en) 20A Current, 14 AWG, IPX6/IPX7 Waterproof, Signal + Power Hybrid   [![Product | Image of Hiroses BH12 connector, optimized for board-to-board connections, highlighting its high current rating and wide temperature range for micro-mobility applications.](https://info.hirose.com/hs-fs/hubfs/Product%20%7C%20Image%20of%20Hiroses%20BH12%20connector%2c%20optimized%20for%20board-to-board%20connections%2c%20highlighting%20its%20high%20current%20rating%20and%20wide%20temperature%20range%20for%20micro-mobility%20applications..png?width=1964&height=1102&name=Product%20%7C%20Image%20of%20Hiroses%20BH12%20connector%2c%20optimized%20for%20board-to-board%20connections%2c%20highlighting%20its%20high%20current%20rating%20and%20wide%20temperature%20range%20for%20micro-mobility%20applications..png "Product | Image of Hiroses BH12 connector, optimized for board-to-board connections, highlighting its high current rating and wide temperature range for micro-mobility applications.")](https://info.hirose.com/products/bh12?hsLang=en) [HVAC](https://info.hirose.com/hubfs/HVAC%20connector%20recommendation%20placeholder.pdf?hsLang=en)  |   [CHILLERS](https://info.hirose.com/hubfs/Hirose_Connector_Recommendations_Chiller_2025-12-17_AH.pdf?hsLang=en)   ### [DF22B Series](https://info.hirose.com/products/df22b?hsLang=en) 7.92mm Pitch, Up to 30A, High-Current Branch Adapter Connector [![HiroseAmericas\_DF22B\_LP Image\_012026](https://info.hirose.com/hs-fs/hubfs/HiroseAmericas_DF22B_LP%20Image_012026.png?width=900&height=739&name=HiroseAmericas_DF22B_LP%20Image_012026.png "HiroseAmericas_DF22B_LP Image_012026")](https://info.hirose.com/products/df22b?hsLang=en) [HVAC](https://info.hirose.com/hubfs/HVAC%20connector%20recommendation%20placeholder.pdf?hsLang=en)  |  [THERMOSTAT](https://info.hirose.com/hubfs/HiroseElectric_Thermostat_ConnectorRecommendations_Jan2026.pdf?hsLang=en)  |  [CHILLERS](https://info.hirose.com/hubfs/Hirose_Connector_Recommendations_Chiller_2025-12-17_AH.pdf?hsLang=en)   ### [DF51B Series](https://info.hirose.com/products/df51b?hsLang=en) 2.0mm Pitch, Positive-Lock Crimp Branch Connector [![Image of DF51B Branch Series Connector by Hirose Electric, showcasing its 2mm pitch, positive lock design, and versatile connection options](https://info.hirose.com/hs-fs/hubfs/Image%20of%20DF51B%20Branch%20Series%20Connector%20by%20Hirose%20Electric%2c%20showcasing%20its%202mm%20pitch%2c%20positive%20lock%20design%2c%20and%20versatile%20connection%20options.png?width=900&height=739&name=Image%20of%20DF51B%20Branch%20Series%20Connector%20by%20Hirose%20Electric%2c%20showcasing%20its%202mm%20pitch%2c%20positive%20lock%20design%2c%20and%20versatile%20connection%20options.png "Image of DF51B Branch Series Connector by Hirose Electric, showcasing its 2mm pitch, positive lock design, and versatile connection options")](https://info.hirose.com/products/df51b?hsLang=en) ## **EXPLORE MORE** ## **Application Guides** [BATTERY PACK](https://info.hirose.com/hubfs/HiroseElectric_Americas_BatteryPack_ConnectorRecommendation_112025.pdf?hsLang=en) [POWER DISTRIBUTION](https://info.hirose.com/hubfs/EN_A_Power%20Distribution%20Board_2_16-9.pdf?hsLang=en)   ## **Resources** [ix INDUSTSTIAL](https://www.hirose.com/en/product/en/pr/ix_industrial/) [SIGNALBEETM](https://info.hirose.com/hubfs/HiroseElectric_SignalBee_Technical_Specifications_Brochure_Jan2026.pdf?hsLang=en) [ENERBEETM](https://info.hirose.com/hubfs/EnerBee_e.pdf?hsLang=en) [FUNCTIONMAXTM](https://info.hirose.com/hubfs/HiroseElectric_FunctionMAX_ConnectorBrochure_Jan2026.pdf?hsLang=en) [HVAC](https://info.hirose.com/hubfs/HVAC%20connector%20recommendation%20placeholder.pdf?hsLang=en)   ### [DF60FS Series](https://info.hirose.com/products/df60fs?hsLang=en) Up to 45A, High-Current Wire-to-Board Power Connector for Internal Power [![HiroseAmericas\_DF60FS\_LP Image2\_012026](https://info.hirose.com/hs-fs/hubfs/HiroseAmericas_DF60FS_LP%20Image2_012026.png?width=900&height=739&name=HiroseAmericas_DF60FS_LP%20Image2_012026.png "HiroseAmericas_DF60FS_LP Image2_012026")](https://info.hirose.com/products/df60fs?hsLang=en) [HVAC](https://info.hirose.com/hubfs/HVAC%20connector%20recommendation%20placeholder.pdf?hsLang=en)  |   [CHILLERS](https://info.hirose.com/hubfs/Hirose_Connector_Recommendations_Chiller_2025-12-17_AH.pdf?hsLang=en)  |  [REFRIDGERATED CONTAINERS](https://info.hirose.com/hubfs/HiroseElectric_ColdStorageContainer_ConnectorRecommendations_Jan2026.pdf?hsLang=en)   ### [DF63W Series](https://info.hirose.com/products/df63w?hsLang=en) 3.96mm Pitch, IP67 Waterproof, Up to 14A Power Connector   [![Product | Image of Hiroses compact DF63W connector, tailored for waterproofing internal power supplies in micro-mobility devices.](https://info.hirose.com/hs-fs/hubfs/Product%20%7C%20Image%20of%20Hiroses%20compact%20DF63W%20connector%2c%20tailored%20for%20waterproofing%20internal%20power%20supplies%20in%20micro-mobility%20devices..png?width=1834&height=1168&name=Product%20%7C%20Image%20of%20Hiroses%20compact%20DF63W%20connector%2c%20tailored%20for%20waterproofing%20internal%20power%20supplies%20in%20micro-mobility%20devices..png "Product | Image of Hiroses compact DF63W connector, tailored for waterproofing internal power supplies in micro-mobility devices.")](https://info.hirose.com/products/df63w?hsLang=en) [HVAC](https://info.hirose.com/hubfs/HVAC%20connector%20recommendation%20placeholder.pdf?hsLang=en)  |   [THERMOSTAT](https://info.hirose.com/hubfs/HiroseElectric_Thermostat_ConnectorRecommendations_Jan2026.pdf?hsLang=en)   ### [ix Industrial™ Series - Waterproof](https://info.hirose.com/products/ix-industrial?hsLang=en) IEC 61076-3-124, IP65/IP67, Push-Pull Lock Industrial Ethernet I/O Connector [![HiroseAmericas\_Waterproof\_IX\_LP Image2\_012026](https://info.hirose.com/hubfs/HiroseAmericas_Waterproof_IX_LP%20Image2_012026.png "HiroseAmericas_Waterproof_IX_LP Image2_012026")](https://info.hirose.com/products/ix-industrial?hsLang=en) ## **Videos** **HOW-TO** [HOW-TO ASSEMBLE IX INDUSTSTIAL](https://youtu.be/m0JGklSu8mw) [HOW-TO FIND CRIMP & TOOLING](https://youtu.be/AehzNDGKOsA) [HOW-TO ASSEMBLE DF63W](https://youtu.be/tyjezbjNVuE)   **PRODUCT SERIES** [DF22B SERIES](https://youtu.be/74YxYN8uwVI) [DF51B SERIES](https://youtu.be/3J1C5kU_7E4) ## **More Climate Control Solutions** ## **[![HiroseElectric\_Americas\_Trane\_Button2\_012026](https://info.hirose.com/hs-fs/hubfs/HiroseElectric_Americas_Trane_Button2_012026.png?width=275&height=75&name=HiroseElectric_Americas_Trane_Button2_012026.png)](https://info.hirose.com/applications/hvac/chiller?hsLang=en)** ## **[![HiroseElectric\_Americas\_Trane\_Button3\_012026](https://info.hirose.com/hs-fs/hubfs/HiroseElectric_Americas_Trane_Button3_012026.png?width=278&height=75&name=HiroseElectric_Americas_Trane_Button3_012026.png)](https://info.hirose.com/applications/hvac/thermostat?hsLang=en)** ## **[![HiroseElectric\_Americas\_Trane\_Button4\_012026](https://info.hirose.com/hs-fs/hubfs/HiroseElectric_Americas_Trane_Button4_012026.png?width=273&height=75&name=HiroseElectric_Americas_Trane_Button4_012026.png)](https://info.hirose.com/applications/hvac/cold-storage-refrigerated-trailer?hsLang=en)**     **Need More Solutions?** Let's Talk Through Your Design   Our engineers can help identify connector options across your HVAC systems.  ### **Plugged In** ##### Hirose's Blog for Charging Your Industry Knowledge Get switched on to the latest Hirose insights, trends, and events shaping our industry. LEARN MORE **BLOG** ### Smart Manufacturing   Your pain? We understand. This is why we do what we do, and can provide you with an experience like no other. **BLOG** ### Micro Mobility   Your pain? We understand. This is why we do what we do, and can provide you with an experience like no other. **BLOG** ### Mark Kojak   Your pain? We understand. This is why we do what we do, and can provide you with an experience like no other. **ABOUT HIROSE** [Our Company](https://www.hirose.com/corporate/en/about/message/) [Investor Relations](https://www.hirose.com/corporate/en/ir/) [CSR](https://www.hirose.com/corporate/en/csr/message/)   **RESOURCES** [Connector Selector](https://hirose.icata.net/iportal/CatalogViewInterfaceStartUpAction.do?method=startUp&mode=PAGE&volumeID=HRE00001&catalogId=3173360000&pageGroupId=&designID=HRED002&catalogCategoryId=&designConfirmFlg=) [Categories](https://www.hirose.com/product/category) [Applications](https://www.hirose.com/en/product/industry)   **CUSTOMER SUPPORT** [Partners](https://www.hirose.com/corporate/en/about/partner/) [Locations](https://www.hirose.com/corporate/en/about/global_network/) [Contact Us](https://info.hirose.com/contact?hsLang=en) © 2026 Hirose Electric Co., LTD. Corporation. All rights reserved. [Privacy Policy](https://www.hirose.com/corporate/en/terms/privacy/en/) | [Terms of Use](https://www.hirose.com/corporate/en/terms/en/) | [Membership Agreement](https://www.hirose.com/corporate/en/terms/membership/en/) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/linkedin-in-brands-solid.svg)](https://www.linkedin.com/company/hirose-electric-americas/) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/youtube-brands-solid.svg)](https://www.youtube.com/@hiroseelectricgroup) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/facebook-f-brands-solid.svg)](https://www.facebook.com/hiroseelectric/) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/instagram-brands-solid.svg)](https://www.instagram.com/hiroseelectricamericas/) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/linkedin-in-brands-solid.svg)](https://www.linkedin.com/company/hirose-electric-americas/) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/youtube-brands-solid.svg)](https://www.youtube.com/@hiroseelectricgroup) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/facebook-f-brands-solid.svg)](https://www.facebook.com/hiroseelectric/) [![](https://info.hirose.com/hubfs/raw_assets/public/Modules/assets/instagram-brands-solid.svg)](https://www.instagram.com/hiroseelectricamericas/) - SAMPLE REQUEST - CONTACT US ### Contact Us ### Request a Sample