KB3090 - 90Amp Circuit Breaker

KB3090 - 90Amp Circuit Breaker

When you're replacing a breaker in existing equipment, the amp rating is only the beginning. The KB3090 is a 90-amp, 3-pole Type KB thermal-magnetic circuit breaker with an interchangeable trip unit, designed for applications in which its electrical ratings, dimensions, and configuration match those of equipment already in service. For anyone maintaining legacy electrical equipment, those details matter. Matching the KB3090 by part number, Type KB design, pole count, amperage, AIC ratings, trip configuration, dimensions, and terminal requirements helps determine whether it is the right functional replacement for the application.

Key Features and Benefits

• 90-amp, 3-pole configuration: Designed for compatible electrical equipment calling for this specific amperage and pole arrangement.
• Thermal magnetic circuit breaker: Uses the thermal magnetic trip configuration specified for the KB3090.
• Interchangeable trip unit: An important feature to confirm when matching the breaker with existing equipment and application requirements.
• Type KB configuration: Helps identify the breaker when checking form, fit, and functional compatibility with an existing installation.
• Load-side terminals included: The supplied terminal configuration is one less detail to overlook when evaluating the breaker for a replacement application.
• 40°C rated: Provides another specific operating characteristic to verify before installation.
  

Technical Specifications

• Part Number: KB3090
  
• Type: KB
  
• Product Type: Circuit Breaker
  
• Trip Type: Thermal Magnetic
  
• Trip Unit: Interchangeable
  
• Amperage: 90A
  
• Number of Poles: 3
  
• AIC at 600VAC: 14k
  
• AIC at 480VAC: 22k
  
• AIC at 240VAC: 25k
  
• Temperature Rating: 40°C
  
• Height: 10.00 in.
  
• Width: 4.13 in.
  
• Depth: 4.13 in.
  
• Dimensions: 4.13"W x 10.00"L x 4.13"D
  
• Approximate Shipping Weight: 14.00 lbs.
  
• Terminals: Load-Side Terminals Included
  

Material Compliance and Certifications

Specific material compliance or certification information was not included in the available specifications for the KB3090. Accordingly, UL, CSA, RoHS, REACH, or any other certification or compliance status should not be assumed.

Where It Works Best

The KB3090 90A 3-pole circuit breaker makes the most sense in compatible legacy electrical equipment where the existing application calls for the same Type KB form, physical fit, electrical ratings, and operating characteristics.

This is where careful matching pays off. Don't rely on the 90A rating alone. Check the complete KB3090 part number, three-pole configuration, Type KB design, thermal-magnetic operation, interchangeable trip unit, AIC and voltage ratings, 40°C rating, physical dimensions, and load-side terminal requirements against the breaker being replaced and the equipment in which it will be installed.