THHQB2170 - 70Amp Circuit Breaker

THHQB2170 - 70Amp Circuit Breaker

The THHQB2170 is a dependable 70-amp, 2-pole molded case circuit breaker designed to provide reliable 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 offers a secure installation that helps you to maintain consistent electrical performance in panelboard applications. With a 22,000 AIC rating at 120/240VAC, the THHQB2170 is engineered to help protect connected equipment and electrical circuits from potentially damaging fault conditions. Its compact footprint allows it to fit efficiently within compatible panel configurations while delivering the protection required for demanding power distribution environments.

Built for durability and long-term service, the THHQB2170 is also HACR rated, making it suitable for heating, air conditioning, and refrigeration equipment applications. Whether you use it for branch-circuit protection, equipment feeds, or commercial electrical upgrades, this breaker delivers the performance and reliability professionals expect from a high-quality molded-case circuit breaker.

Key Features and Benefits

• 70 Amp Rating – Supports higher-capacity electrical circuits requiring dependable overcurrent protection.
• 2-Pole Configuration – Designed for 120/240VAC applications requiring protection across two conductors.
• 22kA Interrupting Capacity – Helps safely interrupt high fault currents and protect downstream equipment.
• Bolt-On Design – Provides a secure mechanical and electrical connection within compatible panelboards.
• THHQB Q-Line Series – Engineered for compatibility with designated Q-Line distribution systems.
• HACR Rated – Suitable for heating, air conditioning, and refrigeration equipment applications.
• Molded Case Construction – Built for consistent operation and long service life in demanding environments.
• Space-Efficient Profile – Compact dimensions help maximize available panel space.

Technical Specifications

• Part Number THHQB2170
• Type THHQB
• Circuit Breaker Style Molded Case Circuit Breaker
• Mounting Type Bolt-On
• Series Q-Line
• Poles 2
• Amperage Rating 70 Amps
• Voltage Rating 120/240VAC
• Interrupting Rating (A.I.C.) 22kA
• HACR Rated Yes
• Height 3.5 in.
• Width 2.0 in.
• Depth 2.81 in.

Material Compliance and Certifications

• The THHQB2170 is manufactured to meet applicable industry standards for molded-case circuit breakers and is HACR-rated for use with heating, ventilation, air conditioning, and refrigeration equipment. Proper installation should always be performed in accordance with applicable electrical codes, manufacturer guidelines, and system requirements.
• UL Standards: When installed according to electrical codes, you can have confidence that this unit adheres to expected construction and compliance benchmarks.

Where It Works Best

• The THHQB2170 is well suited for a variety of electrical distribution applications, including:
• Commercial buildings and office facilities
• Industrial control and power distribution systems
• HVAC and refrigeration equipment installations
• Electrical panelboard upgrades and retrofits
• Branch circuit protection in 120/240VAC systems
• Equipment feeders and load distribution applications
• Its combination of 70-amp capacity, 22kA interrupting rating, and bolt-on Q-Line design makes it an excellent choice for professionals seeking dependable circuit protection in demanding electrical environments.