Square D EJB26020 - 20 A, 600 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Square D EJB26020 is a trusted 20A, 600V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built to endure the demands of both residential and light commercial environments, it delivers precise protection where it matters most.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus, minimizing the chance of loosening during motor starts or transit vibrations.
• Thermal-magnetic trip unit delivers stable, repeatable protection for both overloads and short circuits, reducing nuisance trips while guarding conductors and equipment.
• OEM-compatible design is intended to drop into matching Square D panelboards and load centers, simplifying replacements and upgrades without sacrificing performance.
• Versatile performance suited for residential, commercial, and light industrial circuits where reliable protection and quick fault isolation are critical.

The EJB26020 protects against dangerous overcurrent and short-circuit conditions on branch circuits, safeguarding wiring and connected loads. Its 2-pole configuration makes it ideal for multi-wire branch circuits and applications requiring simultaneous protection of both conductors. With a 20-amp rating and 600-volt capacity, it accommodates a wide range of equipment and lighting circuits used in everyday installations.

Key specifications at a glance

• Manufacturer: Square D
• Part number: EJB26020
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 20A
• Voltage rating: 600V
• Poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider this part? electrical contractors, facilities managers, and professional installers who need a rugged, reliable breaker that fits standard OEM panelboards and load centers and stands up to regular operation in environments ranging from homes to small industrial spaces. If you’re replacing a worn-out breaker or upgrading a panel to support new loads, the Square D EJB26020 offers a straightforward, drop-in solution with proven protection performance.

Practical tips for installation and use: verify you’re selecting the correct amperage and poles for your circuit, ensure a tight bolt-on connection to resist vibration, and follow the panelboard manufacturer’s torque and installation guidelines. After installation, test the circuit under normal load and confirm the breaker trips correctly under simulated fault conditions to ensure ongoing protection for your wiring and equipment.