EH3B100 - 100Amp Circuit Breaker

EH3B100 - 100 Amp Circuit Breaker

If you’re maintaining an existing electrical system and need a breaker that fits right the first time, the EH3B100 keeps things simple. Built for compatibility with EH3 frame setups, this 100-amp, 3-pole molded case circuit breaker is designed to drop into place without forcing changes to your panel or configuration. It’s a practical solution when keeping your current system running matters more than reinventing it. With interrupting ratings of 14k A.I.C. at 480VAC and 18k A.I.C. at 240VAC, the EH3B100 is built to handle fault conditions in typical commercial and industrial environments. Its molded case construction helps protect internal components while supporting consistent operation over time. Whether you’re replacing a worn unit or stocking critical spares, this breaker does what it’s supposed to do—fit correctly, operate as intended, and hold up under normal use.

Key Features and Benefits

• Exact-fit replacement for EH3 frame circuit breaker systems
• 100 amp rating for reliable overcurrent protection
• 3-pole design ideal for three-phase electrical distribution
• Interrupting capacity: 14k A.I.C. @ 480VAC, 18k A.I.C. @ 240VAC
• Designed for 40°C ambient conditions, common in facility environments
• Molded case housing helps shield internal components
• Built to last, making it a dependable choice for ongoing system maintenance

Technical Specifications

• Part Number: EH3B100
  
• Amperage: 100A
  
• Poles: 3
  
• Frame Type: EH3
  
• Interrupting Capacity:
  • 14k A.I.C. @ 480VAC
  • 18k A.I.C. @ 240VAC
• Temperature Rating: 40°C
  
• Breaker Type: Molded Case Circuit Breaker
  
• Dimensions: 6.0" height
  
• Weight: 4.5 lbs
  

Material Compliance and Certifications

• The EH3B100 is produced to meet standard electrical safety and performance expectations for molded case circuit breakers used in commercial and industrial applications.
• It is suitable for installations requiring compliance with recognized electrical codes.
• As always, confirm alignment with your local requirements and system specifications prior to installation.

Where It Works Best

• This breaker is a natural fit for facility maintenance teams, contractors, and electricians working with existing EH3-based systems. You’ll typically find it used in panelboards, switchgear, and distribution systems across commercial buildings and industrial sites. It’s especially useful when you need a straightforward replacement that matches your current setup—no redesign, no unnecessary adjustments, just a breaker that fits and works.