A1B330 - 30 Amp Circuit Breaker

A1B330 -  30 Amp Circuit Breaker

The A1B330 is a 3-pole, 30-amp bolt-on circuit breaker designed for use in commercial and industrial electrical systems operating at 240VAC. Built with a thermal magnetic trip mechanism, it helps protect circuits from overloads and short circuits while supporting the safe operation of connected equipment.

This breaker is commonly used in existing A1B series panelboards and distribution systems where dependable replacement components are needed to keep equipment running properly. Its bolt-on mounting style provides a secure connection, making it a good fit for maintenance work, repairs, and retrofit projects. The compact design also helps when panel space is limited.

Electricians and maintenance professionals often choose breakers like the A1B330 for facilities that continue to rely on established electrical infrastructure. From HVAC systems and motor applications to general power distribution, this breaker is designed to handle everyday electrical demands without overcomplicating the job.

Key Features and Benefits

• 30 Amp current rating
• 3-pole breaker for multi-phase applications
• Bolt-on mounting design
• Thermal magnetic protection against overloads and short circuits
• 10kA interrupting rating at 240VAC
• Compact size for easier panel integration
• Compatible with A1B series systems
• Useful for replacement, maintenance, and retrofit projects
• Built for long-term use in properly maintained systems

Technical Specifications

• Part Number: A1B330
  
• Type: A1B
  
• Circuit Breaker Type: Thermal Magnetic
  
• Mounting Type: Bolt-On
  
• Poles: 3
  
• Amperage: 30A
  
• Voltage Rating: 240VAC
  
• Interrupting Capacity: 10kA @ 240VAC
  
• Dimensions:
  • Width: 2.25"W
  • Length: 6.00"L
  • Depth: 2.31"D

Material Compliance and Certifications

• The A1B330 is intended for use in electrical distribution systems requiring properly rated overcurrent protection. Installation should be completed by qualified personnel and in accordance with NEC requirements, local electrical codes, and equipment specifications. Compatibility with the existing electrical system should always be verified before installation.

Where It Works Best

• Commercial buildings
• Industrial facilities
• Distribution panels
• HVAC equipment
• Motor control systems
• Maintenance and repair projects
• Existing A1B series electrical systems