QOB3701021 - 70A Circuit Breaker

QOB3701021 - 70A Circuit Breaker

The QOB3701021 is a 3-pole, 70-amp bolt-on circuit breaker designed to provide dependable overcurrent protection for your commercial, industrial, and institutional electrical distribution systems. Built as part of the QOB product family, this breaker features a 120VAC shunt trip device, allowing the breaker to be remotely tripped from an external control signal for enhanced safety, emergency shutdown capability, and integration with building automation or fire protection systems. Its bolt-on mounting design creates a secure mechanical and electrical connection within compatible panelboards, helping you to maintain reliable performance in demanding applications. Rated for 10kA interrupting capacity at 240VAC, the QOB3701021 is an excellent choice for protecting branch circuits that require dependable operation, straightforward installation, and the added convenience of remote tripping functionality.

Key Features and Benefits

• 70 Amp Current Rating: 70 Amp current rating for reliable branch circuit protection.
• Three-Pole Configuration: Three-pole configuration designed for three-phase electrical systems.
• Bolt-On Mounting: Bolt-on mounting provides a secure, vibration-resistant connection in compatible panelboards.
• 120VAC Shunt Trip Device: Integrated 120VAC shunt trip device enables remote breaker tripping for emergency shutdowns and automated control systems.
• 10kA Interrupting Capacity: 10kA interrupting capacity at 240VAC helps safely interrupt fault currents within its rated capacity.
• Remote Disconnect Capability: Supports applications requiring enhanced electrical safety and remote disconnect capabilities.
• Compact Design: Compact design helps simplify installation and maintenance in compatible electrical distribution equipment.
  

Technical Specifications

• Part Number: QOB3701021
  
• Type: QOB
  
• Poles: 3
  
• Amperage: 70 Amps
  
• Interrupting Rating: 10kA
  
• Voltage Rating: 240VAC
  
• Mounting Style: Bolt-On
  
• Special Feature: 120VAC Shunt Trip Device
  
• Dimensions:
  • Height: 3.5 in.
  • Width: 3.0 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: The QOB3701021 is manufactured for use in electrical distribution systems and is designed to meet applicable industry standards for molded case circuit breakers. When installed in accordance with applicable electrical codes and manufacturer recommendations, it helps provide dependable circuit protection for compatible equipment.
• Installation Guidance: Installers should always verify compatibility with the intended panelboard and application requirements before installation.
  

Where It Works Best

• The QOB3701021 is well suited for a wide range of commercial and industrial electrical applications where dependable circuit protection and remote trip functionality are important, including:
  • Commercial buildings and office facilities
  • Manufacturing plants and industrial equipment
  • Educational and healthcare facilities
  • Retail and mixed-use developments
  • Building automation and energy management systems
  • Emergency power shutdown applications
  • Electrical distribution panelboards requiring compatible QOB bolt-on breakers
  Its combination of 70-amp capacity, 3-pole protection, bolt-on installation, and an integrated 120VAC shunt trip makes the QOB3701021 an excellent solution for electrical systems that require reliable overcurrent protection along with the flexibility of remote circuit interruption.