Square D QOB3901021 Molded Case Circuit Breaker – 90A – 3-Pole – 240V –QOB Series

The Square D QOB3901021 is a 90A, 3-pole bolt-on molded case circuit breaker from the Square D QOB Series. It is designed for compatible electrical distribution applications and provides overcurrent protection for suitable electrical systems.

The breaker is rated for 240V and features a 3-pole configuration with bolt-on mounting. Specific interrupting rating, trip technology, terminal configuration, and other electrical characteristics were not provided and should be verified for the exact breaker.

Specifications:

• Manufacturer: Square D / Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Product Family: QOB
• Series: QOB
• Catalog No.: QOB3901021
• Current Rating: 90A
• Number of Poles: 3-Pole
• Phase: Not specified
• Voltage Rating: 240V
• Interrupting Rating: Not specified
• Protection Type: Not specified
• Trip Type: Not specified
• Mounting Type: Bolt-On
• Connection Type: Not specified
• Application: Electrical Distribution and Overcurrent Protection
• Brand: Square D / Schneider Electric

Part Numbers & Identification:

• Manufacturer Part Number (MPN): QOB3901021
• Catalog Number: QOB3901021
• Model: QOB3901021
• Product Family: Square D QOB Circuit Breakers
• Series: QOB
• Brand: Square D
• Manufacturer: Schneider Electric
• Product Type: Molded Case Circuit Breaker
• Breaker Configuration: 3-Pole, 90A
• Current Rating: 90A
• UPC:785901031055

Compatibility:

Designed for use with compatible Square D QOB Series electrical distribution equipment that accepts QOB bolt-on molded case circuit breakers. The QOB3901021 provides 90A, 3-pole protection for compatible 240V applications.

Always verify the specific panelboard or load center model, approved breaker type, system voltage, interrupting rating, pole configuration, trip characteristics, terminal requirements, mounting arrangement, and conductor requirements before installation.

Certifications:

• QOB Series
• 90A Rated
• 3-Pole
• 240V Rated
• Bolt-On Mounting
• Square D / Schneider Electric Product

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

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