Square D

Square D QOB31001021 100A 3-Pole Thermal Magnetic Circuit Breaker – Bolt-On Mount – 240V

In stock
SKU: QOB31001021 GTIN/UPC: 785901031024
$488.60
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The Square D QOB31001021 Molded Case Circuit Breaker is a heavy-duty overcurrent protection device designed for commercial, industrial, and OEM electrical distribution systems. As part of the Square D QOB Series, this thermal-magnetic circuit breaker provides dependable long-time overload and instantaneous short-circuit protection. Its bolt-on mounting configuration ensures a secure and reliable connection in compatible Square D panelboards and distribution equipment.

Voltage and Rating

  • Current Rating: 100 Amps
  • Voltage Rating: 240 Volts AC
  • Phase: 3-Phase
  • Interrupting Capacity: 10 kAIC at 240V AC

Key Specifications

  • Brand: Square D
  • Manufacturer: Schneider Electric
  • Model Number: QOB31001021
  • Series: QOB Series
  • Product Type: Molded Case Circuit Breaker (MCCB)
  • Number of Poles: 3-Pole
  • Mounting Type: Bolt-On
  • Breaker Type: Thermal Magnetic

Technical Specifications

  • Trip Function: LI (Long-Time and Instantaneous)
  • Protection Type:
    • Long-Time Overload Protection
    • Instantaneous Short-Circuit Protection
  • Connection Type: Bolt-On
  • Interrupt Rating: 10 kAIC @ 240V AC
  • Operating Mechanism: Thermal-Magnetic Trip Unit

Dimensions and Weight

  • Height: 2.91 in
  • Width: 2.99 in
  • Depth: 3.50 in
  • Weight: 1.35 lbs

Features and Benefits

  • Provides reliable overload and short-circuit protection.
  • Bolt-on mounting ensures secure installation and improved electrical reliability.
  • Thermal-magnetic trip technology offers dependable circuit protection.
  • Compact design allows efficient use of panel space.
  • Suitable for commercial, industrial, and OEM applications.
  • Manufactured to Schneider Electric quality and performance standards.

Applications

  • Commercial Electrical Distribution Panels
  • Industrial Control Panels
  • OEM Equipment
  • Motor Protection Circuits
  • Branch Circuit Protection
  • Power Distribution Systems
  • Panelboards and Switchboards

Product Data

  • Manufacturer: Schneider Electric
  • Brand: Square D
  • Family: QOB Series
  • Part Number: QOB31001021
  • Category: Molded Case Breakers / 3-Pole

Product Summary

  • Product Name: Square D QOB31001021 100A 3-Pole Thermal Magnetic Circuit Breaker – Bolt-On Mount – 240V
  • Current Rating: 100A
  • Voltage Rating: 240V AC
  • Poles: 3
  • Mounting Type: Bolt-On
  • Protection: Thermal Magnetic
  • Trip Function: Long-Time and Instantaneous (LI)
  • Interrupt Rating: 10 kAIC @ 240V AC
  • Weight: 1.35 lbs
  • Application: Commercial and industrial power distribution and circuit protection.
  • Type Circuit Breakers
  • Vendor Square D
  • Brand Square D

Returns are easy

You may return items within 30 days of delivery for a refund.

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

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We strive to ship out your items within one business day.

In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.