Square D 45 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker EJB26045 - 45 A, 600 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Square D 45 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker EJB26045 is engineered to deliver reliable branch circuit protection in panelboards and load centers. Its bolt-on mounting creates a rigid, vibration-resistant bus connection, making it a durable choice in busy commercial spaces and light industrial environments.

Equipped with a thermal-magnetic trip unit, this breaker delivers stable, repeatable protection across a range of loads. The thermal element handles overloads with predictable timing, while the magnetic element provides instantaneous tripping for short circuits, helping to prevent equipment damage and electrical fires.

Designed for compatibility, the EJB26045 matches OEM loadcenters and panelboards, ensuring a smoother swap or upgrade process. It’s suitable for residential, commercial, and light industrial applications where dependable protection and panel compatibility matter.

Key specifications include: 45 A, 600 V, 2 poles, bolt-on mounting, and the molded case construction that delivers dependable performance under vibration and varying temperatures. Part number EJB26045.

Ideal use cases include replacing a failed breaker in existing Square D panelboards, protecting branch circuits in service entrances, lighting circuits, or motor loads within 45 A ratings. The bolt-on design helps secure the breaker against loosening from vibration, physical activity, or shipping handling—an important consideration in commercial spaces where panels experience regular access and movement.

Practical tips for installation and maintenance: verify your panel requires a 2-pole, 45 A, 600 V bolt-on breaker, align the breaker with the panel’s bus structure, and tighten mounting hardware per manufacturer guidelines for a solid connection. Keep a spare EJB26045 on hand for quick replacements to minimize downtime and maintain protection coverage.