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EJB34090
EJB34090

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EJB34090 Specifications
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EJB34090, Schneider Electric, Square D circuit breaker molded case EJB Series, type EJB, 3PH, 3P, 480V, 90A, 65kA@480V, Bolt-On, complete with LI - Long-Time and Instantaneous trip functions, Thermal Magnetic
| Manufacturer | Schneider Electric | Subcategory | Molded Case |
| Family | EJB Series | Amperage | 90 |
| Voltage | 480 | Poles | 3 |
| Manufacturer | Schneider Electric | ||
| Subcategory | Molded Case | ||
| Family | EJB Series | ||
| Amperage | 90 | ||
| Voltage | 480 | ||
| Poles | 3 |
Electrical.com is NOT an authorized distributor for Schneider Electric and therefore the manufacturer’s warranty does not apply. This product does include an Electrical.com 2 year warranty.



The Square D EJB34090 is a molded case circuit breaker from the EJB series, designed for branch circuit protection in commercial and industrial power distribution systems. This breaker features a 3-poles configuration, a current rating of 90A, a voltage rating of 480V, and an interrupting capacity of 65kA@480V. The EJB series is recognized for its compact E-frame construction and thermal magnetic trip unit, providing reliable overload and short-circuit protection. Commonly used in NF Series panelboards, the EJB34090 is ideal for lighting and power distribution applications where high interrupting capacity is required.
The EJB34090 utilizes a Bolt-On connection for secure installation into compatible panelboards. It supports both copper and aluminum conductors, with wire sizes ranging from 14 to 6 AWG for copper and 12 to 6 AWG for aluminum. The breaker is UL and CSA approved, ensuring compliance with major safety standards. Its thermal magnetic trip mechanism delivers consistent performance, while the 65kA interrupting capacity at 480V and 100kA at 240V provide robust protection for demanding environments.
Electrical.com offers the Square D EJB34090 with access to detailed technical documentation and expert support for specification, installation, and integration. Our experienced sales team is available to help you select and implement the optimal circuit protection solution for your project, ensuring safe and efficient operation of your electrical distribution system.