Square D EJB36020SA - 20 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Square D EJB36020SA is a 20A, 600V, 3-pole bolt-on molded case circuit breaker designed for dependable branch circuit protection in panelboards and load centers. Built to withstand vibration and demanding installations, this unit delivers precise protection for three-phase circuits with a secure, rigid connection.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays solid in panels subjected to movement or harsh environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection by accurately sensing overloads and short-circuit conditions, reducing nuisance trips and ensuring reliable performance.
• OEM-compatible design is specifically matched to partner with corresponding Square D load centers and panelboards, ensuring a seamless fit and dependable operation.
• Versatile for multiple settings suitable for residential, commercial, and light industrial installations where three-pole, 20A protection is required.

Key uses and scenarios

• Replacement or upgrade in existing Square D panelboards and load centers requiring a 3-pole, 20A, 600V breaker.
• Protection for 3-phase circuits in light industrial equipment, HVAC subsystems, or commercial distribution networks that benefit from a consistent thermal-magnetic trip curve.
• Applications where secure mounting and vibration resistance are priorities, such as panels located in environments with equipment or mechanical vibration.

Technical specifications

• Manufacturer: Square D
• Part number: EJB36020SA
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 20 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker matters

Choosing the EJB36020SA means selecting a breaker that aligns with your OEM panels, delivering predictable trip performance across a range of loads. The bolt-on design minimizes bus connection movement, which is especially valuable in installations subject to vibration, while the thermal-magnetic trip unit offers reliable protection without frequent recalibration. For builders and facilities teams, this part provides a straightforward, dependable solution to maintain electrical safety and system uptime.