MA3400 - 400 Amp Circuit Breaker

MA3400 - 400 Amp Circuit Breaker

The MA3400 is a 400 amp, 3-pole MA thermal magnetic circuit breaker intended for your compatible electrical equipment where the MA type, current rating, trip-unit configuration, and physical size match the existing application. This breaker is 40°C rated and uses an interchangeable trip unit, two important details to confirm when sourcing a replacement for legacy electrical equipment. Built to last, it has solid construction suited to its intended electrical application when selected, installed, and maintained correctly.

Key Features and Benefits

• 400 Amp Rating: Rated at 400A for electrical applications requiring this specific current rating.
• 3-Pole Configuration: Provides the specified three-pole arrangement for matching compatible equipment.
• MA Type: The MA designation helps technicians identify the correct breaker type during replacement and maintenance.
• Thermal-Magnetic Circuit Breaker: Uses the specified thermal-magnetic configuration.
• Interchangeable Trip Unit: Equipped with an interchangeable trip unit, an important characteristic when matching the existing breaker configuration.
• 40°C Rated: Carries the specified 40°C temperature rating.
• Load-Side Terminals Included: The supplied configuration includes load-side terminals.
• Built to Last: Solid construction suits the breaker's intended electrical application when properly selected, installed, and maintained.

Technical Specifications

• Part Number: MA3400
  
• Type: MA
  
• Product Type: Thermal Magnetic Circuit Breaker
  
• Amperes: 400A
  
• 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 MA3400 specifications did not include specific material compliance information, agency certifications, or electrical listings. Therefore, do not assume UL, IEC, RoHS, REACH, or other certification and compliance status.

If the application requires a particular listing or material-compliance standard, confirm it in the product markings or applicable technical documentation before installation.

Where It Works Best

The MA3400 400A 3-pole circuit breaker is best suited for compatible existing and legacy electrical equipment that requires an MA-type, 40°C-rated thermal magnetic circuit breaker with an interchangeable trip unit. It makes the most sense in replacement situations where maintaining the required form, fit, and functional characteristics of the existing installation is the priority.