MDL3800 - 800 Amp Circuit Breaker

MDL3800 - 800 Amp Circuit Breaker

Matching an MDL3800 circuit breaker for your existing equipment means checking more than the 800 amp rating printed on the breaker. The MDL3800 is a 3-pole, 800 amp thermal-magnetic circuit breaker with an interchangeable trip unit, a 40°C rating, and an HACR rating. For compatible legacy electrical equipment calling for these exact characteristics, it can serve as a form, fit, and functional replacement candidate when all application requirements match. Its solid construction is built to last when selected, installed, and maintained correctly.

Key Features and Benefits

• 800 Amp, 3-Pole Configuration: The MDL3800 combines an 800A rating with three poles, giving technicians two essential specifications to confirm immediately during a replacement search.
• Thermal-Magnetic Trip Design: Uses the specified thermal-magnetic configuration for circuit protection in compatible electrical equipment.
• Interchangeable Trip Unit: The breaker includes an interchangeable trip-unit design. Verify any specific trip settings or adjustment ranges separately, as they were not provided.
• Load Terminals Included: The MDL3800 includes load terminals. The available information does not indicate that it includes line-side terminals.
• 40°C Rated: This temperature rating is specifically identified for the MDL3800.
• HACR Rated: The supplied specifications identify this circuit breaker as HACR rated.

Technical Specifications

• Part Number: MDL3800
  
• Product Type: Thermal-Magnetic Circuit Breaker
  
• Type: MDL
  
• Amperes: 800A
  
• Poles: 3
  
• A.I.C. Rating at 600VAC: 25kAIC
  
• A.I.C. Rating at 480VAC: 50kAIC
  
• A.I.C. Rating at 240VAC: 65kAIC
  
• Trip Type: Thermal-Magnetic
  
• Trip Unit: Interchangeable
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Included Terminals: Load terminals
  
• Height: 16.00 in.
  
• Width: 8.25 in.
  
• Depth: 4.06 in.
  
• Dimensions: 8.25"W x 16.00"H x 4.06"D
  
• Approx. Ship Weight: 35.00 lbs.
  

Material Compliance and Certifications

The supplied specifications specifically identify the MDL3800 as HACR-rated. No additional material-compliance or certification information was provided for this exact part number.

Where It Works Best

The MDL3800 800 amp 3-pole circuit breaker is best suited for compatible existing and legacy electrical equipment that requires an MDL-type thermal-magnetic breaker with an interchangeable trip unit. Match the 800A rating, three-pole configuration, applicable AIC and voltage rating, 40°C rating, HACR designation, and physical dimensions to the existing application.

Also pay attention to the terminal configuration. The supplied information states that load terminals are included, but it does not state that line-side terminals are included. Terminal material, conductor range, mounting details, and additional certifications were not supplied, so check those characteristics separately when required.