EHB1020L - 20Amp Circuit Breaker

EHB1020L - 20 Amp Circuit Breaker

If you’re working on an older panel and need a breaker that fits right and works the way it should, the EHB1020L is exactly what you’re looking for. This 20-amp, 1-pole thermal-magnetic circuit breaker was built for legacy systems—specifically panels manufactured before 1989—, so you’re not guessing about compatibility or forcing in something that doesn’t belong. It delivers reliable overload and short-circuit protection through a fixed, non-interchangeable trip unit, which helps maintain the original design of your electrical system. With a 14k A.I.C. rating at 277VAC and a 40°C calibration, it’s a practical choice for keeping older commercial or industrial setups running safely and efficiently. Simply put, this breaker does what it was designed to do—and keeps doing it.

Key Features and Benefits

• Thermal-Magnetic Protection – Handles both overloads and short circuits with dependable tripping response
• 20 Amp Capacity – Well-suited for standard branch circuit protection
• 1-Pole Configuration – Designed for single-phase applications
• 14k A.I.C. Rating @ 277VAC – Supports safe interruption levels in commercial environments
• Fixed Trip Unit – Non-interchangeable design preserves original system coordination
• Line & Load Terminals Included – Saves time during installation
• 40°C Rated – Built to operate consistently under typical ambient conditions
• Made for Legacy Panels – Specifically designed for pre-1989 panelboards

Technical Specifications

• Part Number: EHB1020L
  
• Poles: 1
  
• Amperage: 20A
  
• Voltage Rating: 277VAC
  
• Interrupting Capacity: 14kA
  
• Frame Type: EHB
  
• Trip Type: Thermal-Magnetic (Non-Interchangeable)
  
• Temperature Rating: 40°C
  
• Shipping Height: 6.0 in
  
• Shipping Weight: 1.38 lbs
  
• Included: Line and load terminals
  

Material Compliance and Certifications

• Built in accordance with industry standards for molded case circuit breakers
• Suitable for use in systems designed around UL-listed equipment
• Constructed with durable components intended for long-term service under proper conditions

Where It Works Best

• The EHB1020L is ideal when you’re maintaining or repairing older electrical systems and need something that matches the original setup. You’ll typically find it in commercial buildings, schools, small industrial facilities, and legacy panelboards where replacing the entire system isn’t practical. It’s especially useful when form, fit, and function matter—helping you keep everything running without unnecessary changes.