Square D EJB34090 Molded Case Circuit Breaker – 90A – 3-Pole – 480Y/277V AC – Thermal-Magnetic – Bolt-On – EJB Series

The Square D EJB34090 is a 90A, 3-pole bolt-on molded case circuit breaker designed for use in compatible Square D NF Panelboards. It features a thermal-magnetic trip unit and a signal indicator that provides indication when a trip has occurred.

The EJB34090 is rated for 480Y/277V AC and is calibrated for operation at 40°C. It features aluminum lugs with terminals rated for AWG 12–6 aluminum and AWG 14–6 copper conductors. The breaker is CSA-rated, HID-rated, and HACR-rated, and is UL Listed as High-Intensity Discharge (HID).

Specifications:

• Manufacturer: Square D / Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Catalog No.: EJB34090
• Product Family: EJB
• Series: EJB
• Current Rating: 90A
• Number of Poles: 3-Pole
• Phase: 3-Phase
• Voltage Rating: 480Y/277V AC
• Protection Type: Thermal-Magnetic
• Trip Unit: Thermal-Magnetic
• Mounting Type: Bolt-On
• Signal Indicator: Indicates when a trip has occurred
• Hold Current: 270A
• Trip Current: 875A
• Temperature Calibration: 40°C
• Terminal / Lug Material: Aluminum
• Aluminum Conductor Range: AWG 12–6
• Copper Conductor Range: AWG 14–6
• Ratings: CSA-Rated, HID-Rated, HACR-Rated
• Application: Square D NF Panelboards and Electrical Distribution

Part Numbers & Identification:

• Manufacturer Part Number (MPN): EJB34090
• Catalog Number: EJB34090
• Model: EJB34090
• Product Family: Square D EJB Circuit Breakers
• Series: EJB
• Brand: Square D
• Manufacturer: Schneider Electric
• Product Type: Bolt-On Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 90A
• UPC:785901723783

Compatibility:

Designed for use with compatible Square D NF Panelboards that accept EJB Series bolt-on molded case circuit breakers. The EJB34090 provides 90A, 3-pole thermal-magnetic protection for compatible 480Y/277V AC electrical distribution applications.

The breaker includes aluminum lugs and accommodates AWG 12–6 aluminum or AWG 14–6 copper conductors. Always verify the specific panelboard model, approved breaker type, system voltage, pole configuration, conductor size, terminal requirements, and installation instructions before installation.

Certifications:

• UL Listed as High-Intensity Discharge (HID)

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You may return items within 10 days of delivery for a refund.

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