THQB32015ST1 - 15Amp Circuit Breaker

THQB32015ST1 - 15 Amp Circuit Breaker

The THQB32015ST1 is a 15-amp, 3-pole molded case circuit breaker engineered for dependable overcurrent and short-circuit protection in your commercial, industrial, and institutional electrical distribution systems. As part of the trusted THQB Q-Line series, this bolt-on circuit breaker is designed to provide a secure panelboard connection while helping you to protect electrical equipment, branch circuits, and connected loads from potentially damaging fault conditions. Featuring a 10 kA interrupting capacity at 240 VAC, the THQB32015ST1 delivers consistent performance in demanding environments where reliability and safety are essential. Its compact design allows for efficient installation in compatible panelboards, making it a practical choice for electrical contractors, facility managers, maintenance teams, and OEM applications.

Key Features and Benefits

• 15 Amp Rating: Ideal for protecting lower-amperage three-phase branch circuits and electrical equipment.
• 3-Pole Configuration: Provides simultaneous protection across three conductors for balanced three-phase systems.
• 10kA Interrupting Capacity at 240VAC: Helps safely interrupt fault currents and protect downstream equipment.
• Bolt-On Mounting Design: Creates a secure mechanical and electrical connection within compatible panelboards.
• THQB Q-Line Series Construction: Designed for dependable performance and compatibility with designated Q-Line distribution equipment.
• HACR Rated: Suitable for use in heating, air conditioning, and refrigeration applications where HACR-rated protection is required.
• Molded Case Design: Built to provide reliable circuit protection in commercial and industrial electrical systems.
• Space-Efficient Footprint: Compact dimensions support installation in applications where panel space is a consideration.
  

Technical Specifications

• Part Number: THQB32015ST1
  
• Type: THQB
  
• Circuit Breaker Style: Molded Case Circuit Breaker
  
• Series: Q-Line
  
• Mounting: Bolt-On
  
• Poles: 3
  
• Amperage Rating: 15A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity (A.I.C.): 10kA @ 240VAC
  
• HACR Rated: Yes
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 4.0 in.
  • Depth: 2.81 in.

Material Compliance and Certifications

• HACR Rated: The THQB32015ST1 is manufactured as a molded case circuit breaker intended for use in electrical distribution systems requiring dependable overcurrent protection. The breaker is HACR rated, supporting applications involving heating, air conditioning, and refrigeration equipment.
• Installation and Compliance Guidance: For specific compliance requirements, certifications, installation guidelines, and application approvals, consult the equipment documentation and applicable electrical codes governing the installation.
  

Where It Works Best

• The THQB32015ST1 is well-suited for commercial buildings, industrial facilities, manufacturing operations, schools, healthcare facilities, office complexes, and HVAC-related electrical systems that require dependable three-pole circuit protection. Its 15-amp rating makes it a strong choice for protecting branch circuits, motor-related loads, control systems, and other electrical equipment operating within compatible 240VAC distribution systems. The bolt-on configuration also makes it particularly useful in installations where a secure panelboard connection and long-term reliability are important.