QOB3401021 - 40A Circuit Breaker

QOB3401021 - 40A Circuit Breaker

The QOB3401021 is a 3-pole, 40-amp bolt-on circuit breaker engineered to provide dependable overcurrent protection for your commercial, industrial, and institutional electrical distribution systems. Designed as a Type QOB breaker, this model features a 120VAC factory-installed shunt trip device, enabling remote tripping via an external control signal. This added functionality makes it an excellent choice for emergency shutdown systems, fire alarm interfaces, safety interlocks, and other applications requiring remote power disconnection. With a 10kA interrupting capacity at 240VAC, the QOB3401021 helps you safeguard electrical equipment and connected circuits from overloads and short circuits while delivering the secure mounting and reliable performance expected from a bolt-on breaker. Its compact footprint also makes it well-suited for installations where panel space is at a premium without sacrificing functionality.

Key Features and Benefits

• 40 Amp Current Rating: 40 Amp current rating for reliable branch circuit protection.
• 3-Pole Design: 3-pole design for protecting three-phase electrical systems.
• Bolt-On Mounting: Bolt-on mounting provides a secure electrical and mechanical connection within compatible panelboards.
• 120VAC Shunt Trip Device: Factory-installed 120VAC shunt trip device enables remote breaker tripping for enhanced safety and control.
• 10kA Interrupting Capacity: 10 kA interrupting capacity at 240 VAC helps protect equipment during fault conditions.
• Dependable Protection: Designed for dependable protection against overloads and short circuits.
• Compact Design: Compact design allows for efficient use of available panel space.
• Remote Safety Integration: Ideal for applications requiring integration with emergency stop circuits, fire alarm systems, and remote safety controls.
  

Technical Specifications

• Part Number: QOB3401021
  
• Type: QOB
  
• Mounting Style: Bolt-On
  
• Poles: 3
  
• Amperage: 40 Amps
  
• Interrupting Capacity: 10kA
  
• Voltage Rating: 240VAC
  
• Shunt Trip Voltage: 120VAC
  
• Dimensions:
  • Height: 3.0 in.
  • Width: 3.0 in.
  • Depth: 2.5 in.

Material Compliance and Certifications

• Industry Standards: The QOB3401021 is manufactured to meet applicable industry standards for molded case circuit breakers. It is designed for use in compatible electrical distribution equipment and should be installed in accordance with the National Electrical Code (NEC), local electrical codes, and manufacturer installation requirements.
• Installation Guidance: Always verify compatibility with your specific panelboard and application before installation.
  

Where It Works Best

• The QOB3401021 is well-suited for a wide range of commercial and industrial electrical systems where both reliable circuit protection and remote tripping capability are required, including:
  • Commercial buildings and office facilities
  • Manufacturing plants and industrial equipment
  • Schools, hospitals, and institutional buildings
  • Emergency power shutdown systems
  • Fire alarm and life safety system integration
  • Mechanical equipment control panels
  • Three-phase branch circuit protection applications requiring remote disconnect capability