Square D QOB225 25A 2-Pole Thermal Magnetic Circuit Breaker – Bolt-On Mount – 120/240V

The Square D QOB225 Molded Case Circuit Breaker is a reliable overcurrent protection device designed for commercial and industrial electrical distribution systems. As part of the QOB Series, this thermal-magnetic circuit breaker provides long-time overload and instantaneous short-circuit protection. Its bolt-on mounting configuration ensures secure installation in compatible Square D NQ and NQOD panelboards.

Voltage and Rating

• Current Rating: 25 Amps
• Voltage Rating:
  • 120 V AC
  • 120/240 V AC
  • 48 V DC
• Interrupting Capacity:
  • 10 kAIC @ 120 V AC
  • 10 kAIC @ 120/240 V AC
  • 5 kAIC @ 48 V DC
• Phase: 1-Phase

Key Specifications

• Brand: Square D
• Series: QOB
• Product Type: Molded Case Circuit Breaker (MCCB)
• Number of Poles: 2-Pole
• Mounting Type: Bolt-On
• Terminal Type: Pressure Plate
• Breaker Type: Thermal Magnetic

Technical Specifications

• Trip Function Code: LI
• Trip Function:
  • Long-Time Protection
  • Instantaneous Protection
• Trip Adjustability: Fixed
• Wire Size Range:
  • 14–8 AWG Aluminum
  • 14–8 AWG Copper
• Minimum Wire Size: 14 AWG
• Maximum Wire Size: 8 AWG
• Operating Temperature: 40°C

Compatibility

Suitable for Use With

• Square D NQ Panelboards
• Square D NQOD Panelboards

Available Accessories

• Shunt Trip
• Auxiliary Switch
• Alarm Switch
• Padlock Attachment

Certifications and Standards

• UL 489 Listed
• CSA Certified
• CSA C22.2 No. 5
• HACR Rated
• RoHS Compliant

Construction Features

• Visual Trip Indicator
• HACR Rated
• RoHS Compliant
• Fixed Thermal-Magnetic Trip Unit

Features and Benefits

• Provides dependable overload and short-circuit protection.
• Bolt-on mounting ensures a secure electrical connection.
• Visual trip indicator allows quick breaker status identification.
• HACR rating makes it suitable for HVAC and refrigeration equipment.
• Compact design maximizes panelboard space utilization.
• Compatible with multiple field-installable accessories.
• Manufactured to Square D quality and reliability standards.

Applications

• Commercial Electrical Distribution Panels
• Industrial Control Panels
• Branch Circuit Protection
• HVAC Equipment Protection
• Power Distribution Systems
• NQ and NQOD Panelboards
• General Electrical Protection Applications

Product Summary

• Product Name: Square D QOB225 25A 2-Pole Thermal Magnetic Circuit Breaker – Bolt-On Mount – 120/240V
• Current Rating: 25A
• Voltage Rating: 120/240V AC, 48V DC
• Poles: 2
• Mounting Type: Bolt-On
• Protection: Thermal Magnetic
• Trip Function: Long-Time and Instantaneous (LI)
• Interrupt Rating: 10 kAIC AC, 5 kAIC DC
• Wire Size: 14–8 AWG Aluminum/Copper
• Certifications: UL 489, CSA, HACR
• Application: Commercial and industrial branch circuit protection.

Returns are easy

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

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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.