MA3300 - 300 Amp Circuit Breaker

MA3300 - 300 Amp Circuit Breaker

The MA3300 is a 300-amp, three-pole MA thermal magnetic circuit breaker designed for use with compatible electrical equipment when you need to match the original breaker's electrical ratings, trip-unit configuration, terminals, and physical size. It has a 40°C rating, an interchangeable trip unit, and load-side terminals.

Key Features and Benefits

• The 300A rating applies to electrical equipment that requires this particular current rating.
• The three-pole design clearly specifies the breaker for matching with compatible equipment.
• It is identified as an MA-type circuit breaker to enable a quick check of the component and its application.
• The thermal-magnetic circuit breaker features the specified thermal-magnetic configuration.
• The MA3300 includes a swappable trip unit, which is important for replacement.
• It has a 40°C rating, meeting the specified 40 °C temperature rating.

Technical Specifications

• Part Number: MA3300
  
• Type: MA
  
• Product Type: Thermal Magnetic Circuit Breaker
  
• Amperes: 300A
  
• Poles: 3
  
• Temperature Rating: 40°C
  
• Trip Unit: Interchangeable
  
• A.I.C. Rating & Volts: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
  
• Terminals: Load-side terminals included
  
• Height: 16.0 in.
  
• Width: 8.25 in.
  
• Depth: 4.0 in.
  
• Dimensions: 8.25"W x 16.00"L x 4.00"D
  
• Approximate Shipping Weight: 50.00 lbs.
  

Material Compliance and Certifications

The available MA3300 specifications do not include specific information on material compliance, agency certifications, or electrical listings; therefore, you cannot assume the product has UL, IEC, RoHS, REACH, or other certifications.

Where It Works Best

The MA3300 300A three-pole circuit breaker is a suitable replacement for existing or older electrical equipment designed for an MA-type, 40°C-rated thermal magnetic circuit breaker with an interchangeable trip unit. When matching it with an existing breaker, verify the load-side terminals provided with this breaker.