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** Picture is for identification purposes only and may not represent the actual amperage of the product listed **

QBA221004 - 100 Amp Circuit Breaker

  • 100 Amp
  • 10kA @ 240VAC
  • 2 Pole
Circuit BreakersSKU: QBA221004

Purchase Options: New In Box

QBA221004 - 100 Amp Circuit Breaker Description

QBA221004 - 100 Amp Circuit Breaker

The QBA221004 PowerPact Q circuit breaker is the kind of component you install and don’t have to think about again. Built for 240VAC systems, this 100 amp, 2-pole breaker handles everyday electrical protection with steady, predictable performance. It uses a thermal-magnetic trip system, which means it responds appropriately whether you’re dealing with a gradual overload or a sudden short circuit. With a 10kA interrupting rating, it’s well-suited for common commercial and light industrial applications where reliable fault protection is a must. From an installation standpoint, it keeps things simple. The I-Line connection on the line side helps it seat quickly into compatible panelboards, while the load-side lugs give you flexibility with wiring. There’s also a push-to-trip button right on the front—useful for quick checks during routine maintenance without needing to remove anything. It’s a straightforward, well-built breaker that does what it’s supposed to do, without adding extra steps to your workflow.

Key Features and Benefits

  • 100A, 2-Pole Breaker – Designed for standard 240VAC distribution systems
  • Thermal-Magnetic Trip Unit – Handles both overload and short-circuit protection
  • 10kA Interrupting Capacity – Suitable for typical commercial fault levels
  • I-Line Mounting (Line Side) – Helps streamline installation
  • Push-to-Trip Button – Allows quick manual testing
  • Solid, Practical Design – Built for consistent performance over time
  • Compact Footprint – Fits easily into panelboards

Technical Specifications

  • Catalog Number: QBA221004
  • Series: PowerPact Q
  • Amperage: 100A
  • Poles: 2
  • Voltage Rating: 240VAC, 50/60 Hz
  • Interrupting Rating: 10kA @ 120/208VAC & 240VAC
  • Trip Type: Thermal-Magnetic
  • Magnetic Trip: 2400A
  • Mounting: I-Line (line), Lug (load)
  • Continuous Rating: 80%
  • Impulse Withstand Voltage: 8 kV
  • Dimensions: 6.47" H x 3" W x 3.93" D
  • Wire Range: AWG 4–300 kcmil

Material Compliance and Certifications

  • UL Listed
  • CSA Certified
  • NOM Compliant
  • IEC Certified

Where It Works Best

  • Commercial buildings and office panels
  • Light industrial distribution systems
  • HVAC equipment (HACR rated)
  • Retail spaces and mixed-use properties
  • Panelboard upgrades using I-Line configurations

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Square D® is a registered trademark of Schneider Electric. Products sold are surplus, used, or refurbished and are NOT supplied by Schneider Electric or its affiliates.

Specifications

  • Depth:4.31
  • Height:7.88
  • Width:3.0
  • Poles:2
  • Amperes:100
  • A.I.C. Rating & Volts:10kA @ 240VAC
  • Type:QBA
  • Approx Dimensions:3.00"W x 7.88"L x 4.31"D
  • Additional Notes:PowerPact Q-Frame, I-Line, Plug-On, 2-Pole, B-C Phase, Thermal Magnetic, Molded Case Circuit Breaker

Returns are easy

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

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® 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).

Same Day Shipping

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In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

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