THQL32030ST1 - 30Amp Circuit Breaker

THQL32030ST1 - 30 Amp Circuit Breaker

When your application requires dependable circuit protection along with remote tripping capability, the THQL32030ST1 delivers both in a compact, proven design. This 30-amp, 3-pole THQL molded case circuit breaker is part of the widely used Q-Line series, offering reliable protection against overloads and short circuits while incorporating a built-in 120VAC shunt trip for remote operation.

The integrated shunt trip feature allows the breaker to be opened remotely when an external control signal is applied, making it a practical choice for emergency shutdown systems, fire and life-safety applications, building automation systems, and other installations where quick remote disconnection is essential. Its plug-on design helps streamline installation in compatible panelboards, while the 10kA interrupting capacity at 240VAC provides the fault protection needed to help safeguard valuable electrical equipment and connected loads.

Whether you're upgrading an existing electrical system, replacing a breaker, or designing a new installation, the THQL32030ST1 offers the performance and flexibility that professionals look for in demanding commercial, industrial, and facility management environments. With its HACR rating, it's also suitable for many heating, air conditioning, and refrigeration applications where reliable protection is critical to keeping systems operating safely.

Key Features and Benefits

• 30 Amp current rating: For dependable branch circuit protection.
• 3-pole configuration: Designed for three-phase electrical systems.
• Built-in 120VAC shunt trip: Allows remote breaker operation and emergency shutdown functionality.
• 10kA interrupting capacity at 240VAC: Helps protect equipment during fault conditions.
• Part of the trusted Q-Line circuit breaker family: Offers proven performance and reliability.
• Plug-on mounting design: Supports fast and efficient installation.
• HACR rated: For heating, air conditioning, and refrigeration applications.
• Molded case construction: Built for long-term reliability.
• Helps reduce downtime: By protecting electrical systems from overloads and short circuits.
  

Technical Specifications

• Part Number: THQL32030ST1
  
• Type: THQL
  
• Series: Q-Line
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Mounting: Plug-On
  
• Poles: 3
  
• Amperage Rating: 30 Amps
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA @ 240VAC
  
• Shunt Trip Voltage: 120VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.31 in.
  • Width: 4.00 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• Application Compliance: The THQL32030ST1 is designed for use in electrical distribution systems that require reliable overcurrent protection and remote tripping.
• HACR Rated: The breaker carries an HACR rating, supporting use in qualifying heating, ventilation, air conditioning, and refrigeration applications.
• Installation Requirements: Installation should always comply with applicable electrical codes, equipment specifications, and local regulations.
  

Where It Works Best

• The THQL32030ST1 is an excellent fit for commercial buildings, industrial facilities, schools, healthcare environments, multi-family properties, and other locations that use three-phase power distribution. Its integrated shunt trip capability makes it particularly valuable in emergency power disconnect systems, fire alarm interface applications, building automation systems, machinery controls, and other installations where remote breaker operation enhances safety and operational control.