QCB90 - 90 Amp Circuit Breaker

QCB90 - 90 Amp Circuit Breaker

The QCB90 is a 2-pole, 90-amp bolt-on circuit breaker designed for use in your compatible electrical distribution systems that require dependable branch-circuit protection. Built with a 120/240VAC voltage rating and a 10kA interrupting capacity (A.I.C.), this Type QCB circuit breaker is intended to help you protect electrical circuits from damage caused by overloads and short circuits. Its bolt-on mounting design provides a secure connection to the panelboard, making it well-suited for commercial, industrial, and institutional electrical applications where compatibility with existing equipment is essential. Built to last and engineered for proper form, fit, and function, the QCB90 is an ideal replacement circuit breaker for maintaining legacy electrical systems while helping you to keep installations operating safely and efficiently.

Key Features and Benefits

• Part Number: QCB90
• 90 Amp Current Rating: 90 Amp current rating for higher-capacity branch circuit protection.
• 2-Pole Configuration: 2-pole configuration for 120/240VAC electrical systems.
• Bolt-On Mounting: Bolt-on mounting helps provide a secure mechanical and electrical connection.
• 10kA A.I.C. Rating: 10kA A.I.C. rating at 120/240VAC for applications requiring this interrupting capacity.
• Type QCB Circuit Breaker: Type QCB circuit breaker for compatibility with designated panelboards and electrical equipment.
• Form, Fit, and Functional Replacement: Designed for form, fit, and functional replacement in compatible legacy systems.
• Built to Last: Built to last for dependable service in demanding electrical environments.
  

Technical Specifications

• Part Number: QCB90
  
• Type: QCB
  
• Product Type: Bolt-On Circuit Breaker
  
• Poles: 2
  
• Amperes: 90A
  
• Voltage Rating: 120/240VAC
  
• Interrupting Rating (A.I.C.): 10kA @ 120/240VAC
  
• Dimensions:
  • Height: 4.81 in.
  • Width: 1.50 in.
  • Depth: 2.50 in.

Material Compliance and Certifications

• Installation Requirements: The QCB90 is designed for installation in compatible electrical distribution equipment in accordance with applicable electrical codes and manufacturer requirements. Always verify that the breaker's type, ampere rating, voltage rating, interrupting capacity, and mounting configuration match the requirements of your panelboard and application before installation.
• Qualified Installation: Installation should be performed by a qualified electrical professional and in accordance with all applicable local, state, and national electrical codes.
  

Where It Works Best

• The QCB90 is qualified for compatible commercial, industrial, and institutional electrical distribution systems where a 2-pole, 90-amp bolt-on circuit breaker is required. It is commonly used in panelboards serving lighting circuits, HVAC equipment, distribution loads, machinery, and other branch-circuit applications operating on 120/240 VAC systems. Its bolt-on design makes it an excellent choice when maintaining or replacing circuit breakers in existing compatible installations where proper fit and electrical ratings are critical.