A1B250 - 50 Amp Circuit Breaker

A1B250 - 50 Amp Circuit Breaker

When dependable circuit protection matters, the A1B250 circuit breaker is built to handle the job. Designed for use in compatible commercial and industrial electrical systems, this 2-pole, 50-amp thermal-magnetic circuit breaker helps protect circuits from overloads and short circuits while maintaining a secure bolt-on connection within the panel. Its compact design makes installation easier in tight electrical enclosures, and the 10k A.I.C. rating at 120/240VAC supports a wide range of everyday power distribution applications.

The A1B250 is a practical choice for electricians, maintenance teams, and facility managers seeking a reliable replacement breaker that matches the form, fit, and function required by existing systems. Built to last and engineered for dependable operation, this breaker is commonly used in panelboards, commercial buildings, industrial facilities, and service equipment where consistent protection is essential. Whether you're maintaining older electrical infrastructure or replacing a worn breaker in a functioning distribution setup, the A1B250 delivers the performance and compatibility needed to keep systems operating safely.

Key Features and Benefits

• 50 Amp Circuit Breaker: Designed for dependable branch circuit protection in commercial and industrial electrical systems.
• 2-Pole Configuration: Suitable for 120/240VAC applications requiring dual-pole circuit protection.
• Bolt-On Mounting Style: Helps provide a secure and stable connection inside compatible panelboards.
• Thermal Magnetic Trip Unit: Responds to both overloads and short circuits for dependable overcurrent protection.
• Compact Design: Works well in compatible panelboards and switchboards where installation space is limited.
• 10k A.I.C. Rating: Supports common commercial and industrial applications operating at 120/240VAC.
• Long-Term Reliability: Built for dependable use in existing electrical distribution systems and demanding environments.
• Maintenance and Retrofit Applications: Ideal for maintenance, replacement, and retrofit projects requiring proper form, fit, and function.
  

Technical Specifications

• Part Number: A1B250
  
• Type: A1B
  
• Circuit Breaker Style: Thermal Magnetic
  
• Mounting Type: Bolt-On
  
• Poles: 2
  
• Amperes: 50A
  
• Voltage Rating: 120/240VAC
  
• A.I.C. Rating: 10kA @ 120/240VAC
  
• Dimensions:
  • Width: 1.5"
  • Height: 6.0"
  • Depth: 2.31"

Material Compliance and Certifications

• Electrical Distribution Compatibility: The A1B250 molded case circuit breaker is manufactured for use in compatible electrical distribution systems and is intended for applications that require dependable overcurrent protection.
• Installation Requirements: Installation should always follow local electrical codes, equipment specifications, and manufacturer recommendations.
  

Where It Works Best

• Commercial office buildings
• Industrial facilities
• Electrical distribution panels
• Service entrance equipment
• Maintenance and retrofit projects
• Existing panelboards requiring compatible bolt-on breakers