The Carrier HH18HA499 125 165f Auto Limit Switch is a durable, high-performance electrical component designed for commercial heating, ventilation, and cooling systems. Manufactured by Carrier, this OEM limit switch features precise temperature sensing with a setting range of 125°F to 165°F, ensuring accurate safety and control functions in HVAC applications. Its compact form factor measures 0.9 inches in height, 3 inches in width and depth, and weighs only 0.02 lbs, facilitating seamless integration into various system configurations. This component's robust construction and precise specifications make it vital for optimizing equipment safety and operational reliability in professional HVAC installations, particularly in environments demanding consistent temperature regulation and automatic system cut-offs.
Top Carrier HH18HA499 125 165f Auto Limit Switch Features
The Carrier HH18HA499 limit switch provides reliable automatic thermal regulation, with an adjustable temperature range of 125°F to 165°F suited for commercial HVAC systems. Its resilient construction ensures long-term durability in demanding environments, while its compact design simplifies installation and maintenance. Ideal for system safety and performance, this switch seamlessly integrates into existing control circuits, offering precise responsiveness and ease of calibration in professional settings.
- Temperature regulation: Adjustable range from 125°F to 165°F for accurate control
- Durable housing: Made from high-grade materials to withstand harsh conditions
- Compact design: 0.9" height minimizes space requirements in tight panels
- Easy maintenance: Snap-in installation facilitates quick replacement and calibration
- Broad compatibility: Suitable for various Carrier HVAC controls and OEM systems
Designed for professional HVAC system safety, this limit switch is essential for system overload protection and temperature regulation in commercial refrigeration and climate control applications.
Carrier HH18HA499 125 165f Auto Limit Switch Technical Specs
This OEM limit switch features a precise temperature sensing range from 125°F to 165°F, powered by a small, reliable electrical configuration from Carrier. Its construction from high-quality materials ensures longevity and resistance to environmental stress. The switch is air-cooled, with a minimal footprint measuring 3" in width and depth, and stands at 0.9" tall. It is non-hazardous, lightweight at 0.02 lbs, and designed for seamless installation within HVAC control panels. The unit operates reliably across standard commercial HVAC voltage requirements, making it compatible with a broad range of system controllers. For maintenance, it offers straightforward snap-in mounting and calibration, facilitating efficient service workflows in professional environments.
- Electrical requirements: Compatible with standard HVAC voltage and amperage
- Cooling method: Air-cooled design for reliable operation
- Construction materials: High-grade durable plastics and metals
- Dimensions: 3" W x 3" D x 0.9" H
- Weight: 0.02 lbs for easy handling and installation
- Temperature range: 125°F to 165°F precise switching control
- Safety rating: Designed for commercial HVAC safety standards
- Calibration: Quick snap-in setup for precise adjustment
- Electrical hookup: Compatible with control circuit wiring in commercial HVAC systems
- Installation clearance: Fits into typical control panel openings without obstruction
- System integration: Supports coordinated operation with temperature safety controls
- Environmental resistance: Housing designed to withstand standard HVAC environments
- Maintenance routine: Simple calibration and replacement process
What is a commercial auto limit switch
A commercial auto limit switch is a safety and control device used in HVAC and refrigeration systems to monitor and regulate temperature thresholds. Specifically, the Carrier HH18HA499 model functions as a thermal cut-off, activating or deactivating system components when preset temperature limits are exceeded. Installed within air handlers, furnaces, or refrigeration units, it ensures operational safety by preventing overheating and system failure. This component is typically used in medium-volume HVAC applications, including commercial climate control, refrigeration equipment, and packaged units, where precise temperature sensing and reliable cutoff action are critical for system integrity and safety.
Top Commercial HVAC Limit Switches for Temperature Control in HVAC Systems
Reliable thermal safety and control are achieved with high-quality auto limit switches like the Carrier HH18HA499, ideal for moderate workload HVAC environments. Built for professional-grade control and safety, these switches are suited for commercial heating, cooling, and refrigeration applications. Engineered for durability and precise operation, they support system integrity in various settings, including hospitals, restaurants, and large-scale commercial kitchens.
- Operation type — suitable for moderate-volume HVAC environments
- Kitchen setting — optimized for commercial climate control spaces
- Foodservice category — supports restaurant and cafeteria refrigeration needs
- Workload qualifier — designed for typical HVAC throughput and safety demands
- Use case — critical for maintaining equipment safety and temperature regulation
Why Choose AllPoints Carrier HH18HA499 125 165f Auto Limit Switch?
Compared to similar OEM limit switches, the Carrier HH18HA499 offers exceptional durability with high-grade materials and a compact, easy-to-install design. Its precise temperature range and reliable switching performance make it a superior choice for controlling HVAC safety functions. The switch's air-cooled construction and quick calibration enhance operational efficiency and maintenance workflows, ensuring system safety without downtime.
- Self-contained design for straightforward installation and replacement
- Compact footprint suits tight commercial HVAC control panels
- Accurate temperature switching aligns with safety regulation standards
- Robust build ensures long-term function in demanding environments
- Supports professional maintenance routines, reducing service time
