THQL32050ST1 - 50Amp Circuit Breaker

THQL32050ST1 - 50 Amp Circuit Breaker

When your electrical system requires dependable circuit protection along with remote shutdown capability, the THQL32050ST1 delivers both in one compact package. This 50 Amp, 3-pole THQL circuit breaker is part of the widely used Q-Line series, designed to provide reliable overcurrent and short-circuit protection for commercial and industrial electrical systems. What sets this breaker apart is its built-in 120VAC shunt trip, allowing the breaker to be tripped remotely when connected to an external control circuit—an important feature for emergency shutdown systems, safety controls, and automated operations.

The plug-on design helps simplify installation in compatible panelboards, while its molded case construction is built to withstand the demands of everyday operation. Whether you're protecting HVAC equipment, machinery, distribution panels, or three-phase power systems, the THQL32050ST1 offers the performance and functionality professionals look for when system uptime and safety matter most.

Key Features and Benefits

• 50 Amp Rating: Provides dependable protection against overloads and short circuits.
• 3-Pole Design: Supports three-phase electrical distribution systems.
• Integrated 120VAC Shunt Trip: Allows for remote tripping and emergency shutdown functionality.
• Q-Line Plug-On Configuration: Helps streamline installation and maintenance.
• 10kA Interrupting Capacity at 240VAC: Assists in safely clearing fault conditions.
• HACR Rated: Making it suitable for approved heating, air conditioning, and refrigeration applications.
• Molded Case Construction: Helps provide long-term reliability in demanding electrical environments.
• Ideal for Applications Requiring Both Circuit Protection and Remote Control Capabilities.
  

Technical Specifications

• Part Number: THQL32050ST1
  
• Type: THQL
  
• Series: Q-Line
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Poles: 3
  
• Amperage Rating: 50A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA @ 240VAC
  
• Mounting Style: Plug-On
  
• Shunt Trip Voltage: 120VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 4.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated: The THQL32050ST1 is manufactured for use in properly rated electrical distribution systems and is HACR rated for approved heating, ventilation, air conditioning, and refrigeration applications.
• Installation Requirements: Installation should always comply with applicable electrical codes, equipment specifications, and site requirements.
  

Where It Works Best

• The THQL32050ST1 is an excellent fit for commercial buildings, industrial facilities, manufacturing operations, HVAC systems, control panels, and electrical distribution equipment that require both dependable overcurrent protection and remote breaker operation. It is particularly useful in applications where emergency shutdown capabilities, automated safety controls, or remote disconnect functions are part of the system design.
• Whether it's protecting critical equipment or supporting facility safety requirements, this 50A THQL circuit breaker provides the combination of protection, control, and reliability needed for modern electrical installations.