THHQB2150 - 50Amp Circuit Breaker

THHQB2150 - 50Amp Circuit Breaker

The THHQB2150 is a 50-amp, 2-pole molded case circuit breaker engineered for dependable overcurrent and short-circuit protection in your commercial, industrial, and residential electrical distribution systems. As part of the trusted THHQB Q-Line series, this bolt-on circuit breaker is designed to provide a secure connection to compatible panelboards, helping maintain system reliability while reducing the risk of electrical damage caused by overloads and fault conditions. Rated at 22,000 A.I.C. at 120/240VAC, the THHQB2150 delivers a high interrupting capacity for demanding applications where dependable circuit protection is essential. Its compact design allows for efficient installation in space-conscious electrical equipment, while its HACR rating makes it suitable for heating, air conditioning, and refrigeration applications. Whether you're protecting branch circuits in commercial facilities, industrial environments, or large residential installations, this breaker offers the performance and durability professionals expect from the Q-Line family.

Key Features and Benefits

• 50 Amp continuous current rating for medium-duty power distribution applications
• A 2-pole configuration provides protection for 120/240VAC circuits.
• 22kA interrupting capacity (A.I.C.) at 120/240VAC helps safeguard equipment during fault conditions
• Bolt-on mounting design delivers a secure mechanical and electrical connection.
• THHQB Q-Line series breaker engineered for compatibility with designated panelboards and distribution equipment
• HACR rated for use in heating, air conditioning, and refrigeration systems
• Molded case construction helps protect internal components from environmental exposure and everyday wear
• Compact footprint supports installation where panel space is limited.

Technical Specifications

• Part Number THHQB2150
• Type THHQB
• Circuit Breaker Style Molded Case Circuit Breaker
• Series Q-Line
• Mounting Type Bolt-On
• Poles 2
• Amperage Rating 50 Amps
• Voltage Rating 120/240VAC
• Interrupting Capacity 22kA @ 120/240VAC
• HACR Rated Yes
• Height 3.5 in.
• Width 2.0 in.
• Depth 2.81 in.

Material Compliance and Certifications

• The THHQB2150 is manufactured as a molded case circuit breaker intended for use in electrical distribution systems that require reliable overcurrent protection. The breaker is HACR rated, making it suitable for HVAC and refrigeration-related applications when installed in accordance with applicable electrical codes, equipment specifications, and local regulations. Always verify compatibility with the intended panelboard and installation requirements before use.

Where It Works Best

• The THHQB2150 is well suited for a variety of electrical protection applications, including: Commercial buildings and office facilities HVAC and refrigeration equipment circuits Industrial control panels and machinery Retail and mixed-use properties Electrical distribution panelboards Branch circuit protection requiring a 50-amp, 2-pole breaker Residential systems with higher-capacity 120/240VAC loads When reliable circuit protection and secure bolt-on installation are priorities, the THHQB2150 provides an effective solution for maintaining electrical system safety and operational continuity.