Square D ECB24020G3 - 20 A, 2-Pole Bolt-On Circuit Breaker | AmpState

Square D ECB24020G3 is a 20A, 2-pole bolt-on molded case circuit breaker designed to protect your electrical system from overcurrent and short circuits. Built for dependable performance in panelboards and loadcenters, this breaker delivers a solid, vibration-resistant connection and precise protection where it matters most.

What makes this breaker unique

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus, reducing the risk of loose contacts and intermittent trips in demanding installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection characteristics, responding quickly to overloads and short circuits while minimizing nuisance trips.
• OEM compatibility is designed to pair with matching Square D loadcenters and panelboards, ensuring correct fit, trip curves, and coordinated protection across your main distribution equipment.
• Versatile for multiple environments suitable for residential, commercial, and light industrial applications, including both new builds and panelboard upgrades.

Technical snapshot

• Manufacturer: Square D
• Part Number: ECB24020G3
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Upgrading or replacing a faulty 2-pole breaker in residential panelboards and load centers that require reliable 20A protection for 240V circuits.
• Protecting multi-wire branch circuits where two hot legs share a neutral, ensuring coordinated disconnection on fault conditions.
• Installation in light commercial or small industrial panels where robust, vibration-resistant mounting helps maintain long-term continuity.

How this breaker supports safer, lasting electrical protection

• By combining bolt-on rigidity with a thermal-magnetic trip, it minimizes trip variability and ensures consistent response to abnormal conditions.
• OEM-grade compatibility means fewer mismatch issues during replacement or panel upgrades, improving reliability and simplifying service logistics.
• Designed for practical, real-world use in environments where secure mounting and dependable protection are critical to preventing damage and downtime.

Practical installation and maintenance notes

For best results, install in accordance with electrical codes and the panel manufacturer’s guidelines. Because it’s a bolt-on design, ensure the mounting is secure and that the breaker seats fully in the bus assembly to achieve proper electrical contact. This unit is intended as a straightforward, drop-in replacement for compatible Square D panelboards and load centers, helping you streamline service and maintenance workflows.