Square D

Square D QO2251021 Miniature Circuit Breaker – 25A – 2 Pole – 120/240V – Plug-In – AC Shunt Trip – QO Series

In stock
SKU: QO2251021 GTIN/UPC: 78590116825
$312.20
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The Square D QO2251021 is a QO-series plug-in miniature circuit breaker designed for use in QO load centers, NQOD panelboards, and OEM distribution systems. It provides thermal magnetic protection for overload and short-circuit conditions and includes an integrated AC shunt trip function for remote tripping capability. This breaker is suited for residential, commercial, and light industrial branch circuit applications requiring dependable protection and control.

Electrical Ratings

  • Current Rating: 25 A
  • Voltage Rating: 120/240 VAC
  • DC Rating: 48 VDC
  • Frequency: 50/60 Hz
  • Phase: 1 Phase
  • Poles: 2 Pole
  • Interrupting Rating:
    • 10 kA @ 120/240 VAC (UL/CSA)
    • 5 kA @ 48 VDC

Protection and Function

  • Trip Technology: Thermal Magnetic
  • Trip Function: Common Trip (Overload + Short-Circuit Protection)
  • Additional Feature: AC Shunt Trip (120/208/240 VAC)
  • Protection Type: Branch circuit protection with remote disconnect capability
  • Application: General power distribution, lighting, and appliance circuits

Configuration and Function

  • Series: QO Series (Square D / Schneider Electric)
  • Model: QO
  • Catalog Number: QO2251021
  • Frame Type: QO Miniature Frame
  • Mounting Style: Plug-On
  • Terminal Type: Pressure Plate
  • Compatibility: QO Load Centers, NQOD Panelboards, OEM interiors / Speed-D switchboards

Mechanical and Physical Characteristics

  • Compact molded miniature breaker body
  • Plug-on installation for fast panel integration
  • Integrated AC shunt trip coil for remote tripping
  • Pressure plate terminals for secure wiring connection
  • Designed for standard branch circuit distribution
  • Space-efficient QO-frame construction

Standards and Certifications

  • UL Listed
  • CSA Certified
  • Manufactured by Schneider Electric / Square D
  • Complies with North American electrical distribution standards

Features

  • Thermal magnetic protection for overload and short-circuit faults
  • Integrated AC shunt trip for remote control/disconnect
  • Plug-on mounting for QO compatibility
  • Compact design optimized for panelboard space usage
  • Suitable for residential and light commercial installations
  • Reliable performance in QO and NQOD systems
  • Enhanced safety and control in a single breaker unit
  • 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).

Same Day Shipping

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.