QO3701021 - 70A Circuit Breaker

QO3701021 - 70A Circuit Breaker

When your electrical system needs dependable circuit protection and remote tripping capability, the QO3701021 is built for the job. This 70 Amp, 3-pole Type QO plug-on circuit breaker combines reliable overcurrent protection with an integrated 120VAC shunt trip device, allowing the breaker to be opened remotely when connected to an emergency stop, fire alarm, or other control system. Whether you're maintaining an existing panel or upgrading a commercial or industrial installation, this breaker delivers the performance and convenience professionals expect.

Designed for use in compatible Type QO load centers and panelboards, the QO3701021 features a 10kA interrupting rating at 240VAC to help protect electrical equipment from overloads and short circuits. Its plug-on design makes installation and future servicing more efficient, reducing downtime while helping keep your electrical system operating safely. For facilities where quick remote disconnect capability is just as important as dependable circuit protection, this breaker is a practical and reliable solution.

Key Features and Benefits

• 70 Amp Current Rating: 70 Amp current rating for dependable branch circuit protection.
• 3-Pole Design: 3-pole design for three-phase electrical systems.
• 120VAC Shunt Trip: Integrated 120VAC shunt trip allows the breaker to be tripped remotely during emergency shutdowns or automated control events.
• Plug-On Installation: Plug-on installation helps simplify replacement and maintenance.
• 10kA Interrupting Capacity: 10kA interrupting capacity at 240VAC provides reliable fault protection.
• Overcurrent Protection: Helps safeguard electrical equipment against overloads and short circuits.
• Compatible Equipment: Designed for use in compatible Type QO load centers and panelboards.
• Remote Operation Capability: Ideal for applications where both circuit protection and remote operation are required.
  

Technical Specifications

• Part Number: QO3701021
  
• Type: QO
  
• Breaker Style: Plug-On Circuit Breaker with 120VAC Shunt Trip Device
  
• Poles: 3
  
• Amperage: 70 Amps
  
• Interrupting Rating: 10kA
  
• Voltage Rating: 240VAC
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 3.0 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Electrical Distribution Systems: Manufactured for use in compatible electrical distribution systems.
• Industry Standards: Designed to meet applicable industry performance standards for molded case circuit breakers.
• Installation Requirements: Suitable for installation in accordance with applicable local electrical codes and manufacturer guidelines.
• Compatibility Notice: Always verify compatibility with your panelboard or load center before installation.
  

Where It Works Best

• The QO3701021 is an excellent choice for commercial buildings, industrial facilities, manufacturing plants, schools, healthcare facilities, and other three-phase electrical systems that require both dependable overcurrent protection and remote tripping capability. It's especially well suited for applications connected to fire alarm systems, emergency stop stations, security systems, building automation systems, and other safety controls where the ability to remotely disconnect power is essential.