EH3B090 - 90Amp Circuit Breaker

EH3B090 - 90 Amp Circuit Breaker

If you’re maintaining or servicing an existing electrical system that uses an EH3 frame breaker, the EH3B090 is exactly what you need to keep things running as intended. This 3-pole, 90-amp molded case circuit breaker is built for straightforward compatibility—no guesswork, no modifications. It’s designed to match the original form, fit, and function of EH3 installations, making it a practical choice for repairs, replacements, and ongoing system upkeep. With interrupting capacities of 14kA at 480VAC and 18kA at 240VAC, this breaker is suited for handling typical fault conditions in commercial and industrial environments. Its molded case construction keeps internal components protected while maintaining a compact footprint that fits where it’s supposed to—right into your existing setup. Simply put, this is a breaker built to last and built to do its job without complication.

Key Features and Benefits

• Direct Replacement for EH3 Frame Systems – Designed to match original specifications for easy installation
• 3-Pole Design – Supports standard three-phase power distribution
• 90 Amp Capacity – Ideal for protecting circuits in a wide range of applications
• Consistent Fault Protection – Rated at 14kA (480VAC) and 18kA (240VAC)
• Molded Case Construction – Helps shield internal components and maintain long-term usability
• Built to Last – Designed for dependable operation in demanding environments

Technical Specifications

• Part Number: EH3B090
  
• Poles: 3
  
• Amperes: 90A
  
• Frame Type: EH3
  
• Interrupting Rating:
  • 14kA @ 480VAC
  • 18kA @ 240VAC
• Operating Temperature: 40°C
  
• Breaker Type: Molded Case Circuit Breaker
  
• Approximate Shipping Weight: 4.5 lbs
  
• Height: 6.0 inches
  

Material Compliance and Certifications

• Industry Standards: The EH3B090 is manufactured to align with established industry standards for molded case circuit breakers. It is intended for use in systems that require components meeting recognized electrical safety and performance criteria. As always, installation should follow local electrical codes and be verified for compatibility with your specific equipment.

Where It Works Best

• This breaker fits right into commercial and industrial electrical systems where EH3 frame breakers are already in service. It’s commonly used in panelboards, switchboards, and motor control centers, especially in facilities focused on maintaining existing infrastructure. Whether you’re handling routine maintenance or a necessary replacement, the EH3B090 keeps your system consistent and operating as expected.