JA3090W - 90Amp Circuit Breaker

JA3090W - 90Amp Circuit Breaker

When you're replacing a breaker in existing equipment, a small difference can be a big deal. The JA3090W is a 90-amp, 3-pole Type JA circuit breaker with a thermal-magnetic, non-interchangeable trip unit. For compatible legacy equipment that calls for this exact Type JA configuration, the JA3090W provides the specified form and electrical characteristics required for a like-for-like functional replacement. These breakers are built to last, while correct selection still depends on matching the complete breaker specifications to the equipment.

Key Features and Benefits

• 90-amp rating: Clearly defined for equipment requiring a 90A circuit breaker.
• 3-pole configuration: Provides an essential matching point for existing three-pole installations.
• Type JA breaker: Helps identify compatibility when the existing equipment specifically calls for the JA configuration.
• Thermal-magnetic design: Uses a thermal-magnetic circuit breaker trip mechanism as specified for this model.
• Non-interchangeable trip unit: An important configuration detail to verify when matching a replacement breaker.
• No terminals included: Makes the supplied configuration clear before installation planning begins.
  

Technical Specifications

• Part Number: JA3090W
  
• Product Type: Circuit Breaker
  
• Type: JA
  
• Amperage: 90 A
  
• Poles: 3
  
• A.I.C. Rating at 600VAC: 22k
  
• A.I.C. Rating at 480VAC: 22k
  
• A.I.C. Rating at 240VAC: 25k
  
• Interrupting Capacity at 600VAC: 22,000 A
  
• Interrupting Capacity at 480VAC: 22,000 A
  
• Interrupting Capacity at 240VAC: 25,000 A
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Terminals: Not Included
  
• Width: 5.50 in.
  
• Height / Length: 10.13 in.
  
• Depth: 3.94 in.
  
• Overall Dimensions: 5.50"W x 10.13"L x 3.94"D
  
• Approximate Ship Weight: 16.00 lb.
  

Material Compliance and Certifications

No specific UL, CSA, IEC, RoHS, REACH, or other certification or material-compliance information was included in the supplied specifications for the JA3090W. Those certifications should not be assumed based on the breaker type, voltage, or interrupting rating. Where a particular standard or certification is required, confirm it from the breaker markings or applicable manufacturer documentation.

Where It Works Best

The JA3090W makes sense for compatible existing or legacy electrical equipment specifically requiring a 90A, 3-pole Type JA circuit breaker with a thermal-magnetic, non-interchangeable trip unit. Its clearly stated electrical ratings and dimensions make it easier to compare the replacement against the breaker already in service or the equipment documentation.