EH3B070 - 70Amp Circuit Breaker

EH3B070 - 70 Amp Circuit Breaker

When you’re dealing with an existing electrical system, the last thing you want is a breaker that doesn’t quite line up or requires extra work to install. The EH3B070 molded case circuit breaker is designed to fit into compatible EH3 frame setups without guesswork. It’s rated at 70 amps and built with a 3-pole configuration, making it a solid match for three-phase applications commonly found in commercial and industrial environments.

This breaker handles everyday protection needs—helping manage overloads and short circuits—while operating in standard conditions up to 40°C. With an interrupting capacity of 14k A.I.C. at 480VAC and 18k A.I.C. at 240VAC, it’s suited for systems that require dependable fault interruption without overcomplicating things. The construction is straightforward and made to hold up over time, which is exactly what you want when maintaining older equipment.

Key Features and Benefits

• 70 amp rating for consistent circuit protection
• 3-pole design for three-phase power systems
• Fits EH3 frame setups without modification
• Interrupting capacity rated at 14k A.I.C. (480VAC) and 18k A.I.C. (240VAC)
• Thermal-magnetic trip helps respond to overloads and short circuits
• Designed for operation in 40°C environments
• Built for long-term use in existing systems

Technical Specifications

• Part Number: EH3B070
  
• Amperage: 70A
  
• Poles: 3
  
• Frame Type: EH3
  
• Interrupting Rating:
  • 14k A.I.C. @ 480VAC
  • 18k A.I.C. @ 240VAC
• Temperature Rating: 40°C
  
• Type: Molded Case Circuit Breaker
  
• Height: 6.0 inches
  
• Weight: 4.5 lbs
  

Material Compliance and Certifications

• This breaker is produced using standard materials typically used in molded case circuit breakers and is intended for use in systems that follow common electrical safety practices. As always, it’s important to confirm compatibility with your equipment and ensure installation meets local electrical codes.

Where It Works Best

• Existing EH3 panelboards and switchgear
• Commercial buildings with established electrical systems
• Industrial facilities running three-phase power
• Maintenance and replacement projects where proper fit matters