KA36090 - 90 Amp Circuit Breaker

KA36090 - 90 Amp Circuit Breaker

Designed for heavy-duty industrial and commercial power distribution systems, the KA36090 90 Amp thermal-magnetic molded-case circuit breaker offers high performance and dependable protection where it matters most. Built for use in I-Line panelboards, this breaker provides continuous 90 A capacity and impressive interrupting ratings — 22 kA at 600 VAC and 480 VAC, and up to 25 kA at 240 VAC — making it a solid choice when fault-current demands are significant. With a 60 Hz frequency and ambient operating temperature of 40 °C, the KA36090 is engineered to deliver consistent protection even in challenging electrical environments. Whether you’re upgrading a system or specifying for a new install, this breaker blends compact design with serious protective capabilities.

Key Features and Benefits

• Precise overload and short-circuit protection: The thermal-magnetic trip mechanism guards your equipment and personnel with dependable responsiveness.
• High interrupting capacity: With ratings up to 25 kA at 240 VAC, this breaker stands up to high fault currents, giving you greater safety margin in mission-critical applications.
• Space-efficient form factor: The compact molded-case dimensions make integration into existing panelboards easier, helping you save valuable panel real estate without sacrificing performance.
• Reliable performance in moderate ambient conditions: Rated for operation at 40 °C ambient, the KA36090 maintains dependable function under typical industrial-commercial environmental loads.

Technical Specifications

• Amperage Rating: 90 A
  
• Interrupting Capacity:
  • 22 kA at 600 VAC & 480 VAC
  • 25 kA at 240 VAC
• Voltage Rating: Up to 600 VAC
  
• Frame Type: KA
  
• Number of Poles: 3
  
• Frequency: 60 Hz
  
• Dimensions:
  • Width: 4.50″
  • Length: 10.50″
  • Depth: 4.38″

Material Compliance and Certifications

• Manufactured using high-grade molded materials: The KA36090 meets current industry standard certifications for molded case circuit breakers and is RoHS compliant for environmentally responsible operations.

Where It Works Best

• This breaker is ideally suited for commercial installations, industrial power distribution networks, motor feeders, HVAC systems, lighting and general-purpose loads. If you’re retrofitting an older panel, designing a new power distribution system, or specifying protective devices for demanding environments, the KA36090 delivers the protection and capacity your system requires.