AllPoints HH18HA502 2 Inch Auto Limit Switch for Commercial Refrigeration

The Carrier HH18HA502 140 180f Auto Limit Switch is a precision-engineered OEM component designed by Carrier for robust control in commercial refrigeration and HVAC systems. This adjustable auto limit switch features a compact profile with dimensions of 1.5 inches high, 2 inches wide, and 2.3 inches deep. Its construction utilizes durable materials suitable for demanding environments, ensuring reliable operation in temperature-sensitive applications. Engineered specifically for integration into heat exchange units and refrigeration equipment, it provides precise temperature regulation and safety shutoff functions, effectively preventing system overheating or freezing. The switch’s technical specifications include a model number HH18HA502 with an operational temperature range up to 180°F, making it suitable for high-temperature cut-off and safety applications in commercial foodservice environments.

Top Carrier HH18HA502 140 180f Auto Limit Switch Features

This limit switch offers precise temperature sensing with an adjustable setpoint for tailored control in commercial refrigeration and HVAC systems. Its rugged metal housing ensures longevity in harsh environments, while the easy-to-maintain design simplifies installation and calibration. Designed for seamless integration with Carrier equipment, it supports reliable shutoff and safety functions in foodservice refrigeration lines. Ideal for service technicians and commercial kitchen operations requiring consistent system protection and performance.

• Functionality: Precise temperature sensing with adjustable settings
• Durability Traits: Heavy-duty metal enclosure resists corrosion and impact
• Ease-of-Use: Simple calibration through accessible adjustment screw mechanism
• Application Fit: Compatible with Carrier control panels and refrigeration units
• Workflow Benefit: Enhances system safety and reduces downtime with reliable temperature cut-offs

Designed for installation in HVAC and refrigeration control circuits, suitable for maintenance and calibration by trained technicians.

Carrier HH18HA502 140 180f Technical Specs

This auto limit switch from Carrier operates on standard electrical requirements, with a voltage range compatible with 24V to 240V AC systems, supporting single-phase configurations. Its construction features a corrosion-resistant metal housing rated for continuous operation up to 180°F, making it suitable for temperature cut-off in refrigeration applications. The device’s compact size (1.5" x 2" x 2.3") allows for flexible installation within control panels or directly onto equipment. It weighs approximately 0.02 lbs, facilitating easy mounting and replacement. The switch is designed for straightforward disassembly for maintenance, with calibration accessible via an adjustment screw. Its durability and precision support demanding commercial kitchen environments, ensuring reliable safety shutoff and temperature regulation. It is not hazardous and is designed for use in regions without hazardous material requirements.

• Electrical Requirements: 24V-240V AC, single-phase
• Temperature Resistance: Up to 180°F maximum operating temperature
• Construction & Finish: Metal housing with corrosion resistance
• Dimensions: 1.5" H x 2" W x 2.3" D
• Weight: 0.02 lbs
• Technology & Features: Adjustable sensor with reliable contact mechanism
• Cleaning & Maintenance: Disassembly for calibration and testing accessibility
• Usage Compatibility: Compatible with Carrier control systems and refrigeration units
• Installation & Maintenance: Mounts via standard bracket, supports easy calibration
• Electrical Compatibility: Suitable for systems within 24V to 240V voltage range

What is a commercial auto limit switch

A commercial auto limit switch is an electromechanical device that monitors and controls system temperatures by automatically opening or closing electrical contacts once preset limits are exceeded. Used extensively in refrigeration, HVAC, and cooling systems, it ensures operational safety by preventing overheating or freezing. The Carrier HH18HA502 140 180f Auto Limit Switch is installed in refrigeration and HVAC control circuits, providing precisely calibrated temperature cut-offs suitable for commercial foodservice environments such as walk-in coolers or beverage dispensers. This model is known for its durability and reliable performance at temperatures up to 180°F, making it ideal for maintaining consistent system safety and efficiency in demanding applications.

Top Commercial Limit Switches for Foodservice Settings

Reliable in moderate workloads, the Carrier HH18HA502 140 180f Auto Limit Switch supports precision temperature control and safety in commercial kitchen refrigeration and HVAC settings. Designed by Carrier, it offers robust construction and accurate operation for consistent safety shutoffs across foodservice environments.

• Operation Type — suitable for refrigerated storage and HVAC control
• Kitchen Setting — ideal for commercial foodservice operations
• Foodservice Category — effective in refrigeration and cooling applications
• Workload Qualifier — supports moderate throughput safety monitoring
• Use Case — maintaining temperature safety in food storage and prep areas

Why Choose Carrier HH18HA502 140 180f Auto Limit Switch?

Carrier HH18HA502 140 180f Auto Limit Switch stands out for its precise temperature sensing, durable metal construction, and seamless integration with Carrier systems. Its compact design simplifies installation, while its reliable operation enhances system safety and reduces maintenance downtime in commercial refrigeration and HVAC applications.

• Self-contained design supports easy installation and maintenance
• Constructed with corrosion-resistant materials for long-term durability
• Adjustable temperature setpoint ensures precise safety shutdowns
• Compact footprint maximizes installation flexibility in tight control panels
• Ideal for restaurant refrigeration, beverage cooling, and HVAC control systems