EHB3070L - 70Amp Circuit Breaker

EHB3070L - 70 Amp Circuit Breaker

When you’re working with an older electrical system, the last thing you want is a breaker that almost fits or requires workarounds. The EHB3070L circuit breaker is built to match the exact specifications of legacy panelboards manufactured prior to 1989—so you can install it with confidence and keep your system operating as intended. This 70-amp, 3-pole breaker uses a thermal-magnetic trip mechanism to respond to both everyday overloads and sudden fault conditions, helping protect your equipment without unnecessary complexity. With a 14k A.I.C. rating at 480VAC and a 40°C calibration, it’s a dependable choice for maintaining existing commercial and industrial setups. It’s straightforward, compatible, and built to last—exactly what you need when maintaining established infrastructure.

Key Features and Benefits

• 70 Amp, 3-pole design: for reliable three-phase circuit protection
• Thermal-magnetic trip mechanism: reacts to both overloads and short circuits
• Non-interchangeable trip unit: keeps performance consistent and predictable
• 14k A.I.C. rating at 480VAC: supports safe interruption during fault conditions
• Specifically designed for pre-1989 panelboards: no guesswork on compatibility
• Line and load terminals included: to simplify installation
• 40°C rated: for typical commercial and industrial environments
• Built for long-term use in legacy systems: where consistency matters most

Technical Specifications

• Part Number: EHB3070L
  
• Amperage: 70A
  
• Poles: 3
  
• Voltage Rating: 480VAC
  
• Interrupting Capacity: 14k A.I.C. @ 480VAC
  
• Frame Type: EHB
  
• Trip Type: Thermal-Magnetic (non-interchangeable)
  
• Temperature Rating: 40°C
  
• Included Components: Line and load terminals
  
• Approximate Shipping Weight: 4.13 lbs
  
• Dimensions (Height): 6.0 inches
  

Material Compliance and Certifications

• Manufactured in accordance with widely accepted industry standards for molded case circuit breakers
• Suitable for installations following National Electrical Code (NEC) guidelines
• Constructed with materials commonly used in commercial and industrial electrical systems

Where It Works Best

• The EHB3070L is a smart fit for anyone maintaining or servicing older electrical distribution systems. You’ll commonly find it used in:
• Commercial buildings with existing EHB frame panelboards
• Industrial facilities running legacy equipment
• Maintenance projects where exact replacement—not modification—is required
• Situations where preserving original system design is critical

If you’re keeping an established system up and running, this breaker gives you the right fit and function—without the hassle of adapting something that wasn’t made for the job.