EF2B020 - 20 Amp Circuit Breaker

EF2B020 - 20 Amp Circuit Breaker

If you’re maintaining an existing electrical system, you already know the challenge—it’s not about finding any breaker, it’s about finding the right one that fits and works exactly as expected. The EF2B020 molded case circuit breaker is designed with that in mind. Built for EF2 frame compatibility, this 2-pole, 20-amp breaker slides into place without the guesswork, helping you restore or maintain protection quickly and confidently.

What makes this breaker a dependable choice is its ability to handle real-world electrical demands. With interrupting ratings of 14k A.I.C. at 600VAC and 480VAC, plus 18k A.I.C. at 240VAC, it’s equipped to safely manage fault conditions across a range of applications. Whether you’re dealing with lighting circuits, control panels, or general distribution, the EF2B020 delivers steady, predictable protection. And because it’s designed for 40°C environments, it performs reliably in typical commercial and industrial settings.

At its core, this is a straightforward, well-built molded case circuit breaker—no unnecessary complexity, just a component that’s made to last and do its job day in and day out.

Key Features and Benefits

• Exact Fit for EF2 Systems – Designed to match EF2 frame requirements for seamless installation
• 2-Pole Protection – Helps maintain balanced electrical distribution across circuits
• 20 Amp Rating – Ideal for branch circuits, lighting, and smaller equipment loads
• Strong Interrupting Capacity –
  • 14k A.I.C. @ 600VAC / 480VAC
  • 18k A.I.C. @ 240VAC
• Built to Last – Molded case construction designed for consistent, long-term use
• Standard 40°C Operation – Performs reliably in common working environments

Technical Specifications

• Part Number: EF2B020
• Poles: 2
• Amperage: 20A
• Frame Type: EF2
• Voltage & Interrupting Ratings:
  • 14k @ 600VAC
  • 14k @ 480VAC
  • 18k @ 240VAC
• Operating Temperature: 40°C
• Type: Molded Case Circuit Breaker
• Shipping Details: Approx. 6.0" height, 3.0 lbs

Material Compliance and Certifications

• Manufactured in accordance with applicable industry standards for molded case circuit breakers
• Designed to operate within specified electrical ratings for safe and consistent performance
• Suitable for installations requiring compliant overcurrent protection devices

Where It Works Best

• The EF2B020 is a practical solution for commercial and industrial environments where maintaining existing equipment is the priority. It’s commonly used in panelboards, distribution systems, and control panels that rely on EF2 frame breakers. From lighting circuits to general-purpose branch protection, it fits right into systems that need dependable 20-amp coverage without modification.