JA3090 - 90Amp Circuit Breaker

JA3090 - 90Amp Circuit Breaker

Replacing a breaker in older equipment usually comes down to one thing: do the specifications actually match? The JA3090 gives you several concrete details to check. It's a 90-amp, 3-pole Type JA circuit breaker with a thermal-magnetic, non-interchangeable trip unit. Interrupting capacity depends on system voltage: 22k AIC at 600 VAC, 22k AIC at 480 VAC, and 25k AIC at 240 VAC. The breaker is also 40°C-rated and includes load-side terminals. Put those details together, and you have a clearly defined breaker for equipment that specifically calls for this Type JA configuration.

Key Features and Benefits

• 90A, 3-pole configuration: Gives you two of the first specifications to check against the breaker being replaced.
• Type JA: Helps narrow the match when existing equipment specifically requires a JA-type breaker.
• Thermal-magnetic operation: Uses the specified thermal-magnetic circuit breaker design.
• Non-interchangeable trip unit: An important configuration detail when matching the JA3090 to an existing breaker.
• Load-side terminals included: No need to guess whether this particular configuration is supplied with them.
• 40°C rating: Provides another specification that can be checked against equipment requirements.
  

Technical Specifications

• Part Number: JA3090
  
• Type: JA
  
• Amperage: 90 A
  
• Poles: 3
  
• A.I.C. at 600VAC: 22k
  
• A.I.C. at 480VAC: 22k
  
• A.I.C. 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
  
• Load-Side Terminals: Included
  
• Width: 5.50 in.
  
• Height / Length: 10.13 in.
  
• Depth: 3.94 in.
  
• Dimensions: 5.50"W x 10.13"L x 3.94"D
  
• Approximate Ship Weight: 16.00 lb.
  

Material Compliance and Certifications

The supplied JA3090 specifications do not provide specific UL, CSA, IEC, RoHS, REACH, or other certification or material compliance information. Rather than making assumptions based on the breaker type or ratings, those details should be confirmed from the breaker markings or, when required for the installation, from the applicable manufacturer documentation.

Where It Works Best

The JA3090 is a logical match for compatible existing or legacy equipment that specifically calls for a 90A, 3-pole Type JA circuit breaker with a thermal-magnetic, non-interchangeable trip unit. It's especially relevant when the job is about maintaining the required form, fit, and function of the existing breaker rather than changing the equipment configuration.